Re: [SlimDevices: Audiophiles] If only all audiophiles were like this man, Peter Aczel
andy_c;689656 Wrote: > Harley's always been a crank. There's some commentary by Peter Aczel > about him and an article he presented at an AES convention in 1991. > It's called 'The 91st Audio Engineering Society Convention; or, The > Invasion of the Credibility Snatchers' > (http://theaudiocritic.com/back_issues/The_Audio_Critic_17_r.pdf). The > link is a PDF file. The followup article by Jeff Corey is very good > too. Ah here we have the source for abx is not valid bs parroted by some :) The best case scenario for a typical stereophile test is completely random result due to no level matching sighted tests and no side by side comparison , the practical results are far worse. -- Mnyb Main hifi: Touch + CIA PS +MeridianG68J MeridianHD621 MeridianG98DH 2 x MeridianDSP5200 MeridianDSP5200HC 2 xMeridianDSP3100 +Rel Stadium 3 sub. Bedroom/Office: Boom Kitchen: Touch + powered Fostex PM0.4 Misc use: Radio (with battery) iPad 64gB wifi +3g with iPengHD & SqueezePad (in storage SB3, reciever ,controller ) Mnyb's Profile: http://forums.slimdevices.com/member.php?userid=4143 View this thread: http://forums.slimdevices.com/showthread.php?t=93479 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Speaker placement question
pski;689639 Wrote: > Originally Posted by pski: > "I asked what model of Magnepan you have. I don't remember that one. > (The Crazy one.) Neither does the manufacturer. > > Did you get that from the product plate ? > > Make it easy to help. " > > The various models of Magnepans have very specific instructions on > placement that answer all your questions about starting position, > separation, and adjustment distances. > > Of course, it is possible you don't really want facts in response to > your starting the thread. > > P I didn't ask for help with searching for Magnepan speaker placement on the web. I know how to use google, thank you very much. Here, I'm interested in hearing other experts' direct personal experiences with speaker placement, especially planar speakers. Do you have each and every Magnepan model at your house so that you can give me your first hand experiences? If not, what if anything could you possibly glean from me giving you the model number? -- magiccarpetride magiccarpetride's Profile: http://forums.slimdevices.com/member.php?userid=37863 View this thread: http://forums.slimdevices.com/showthread.php?t=93503 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] If only all audiophiles were like this man, Peter Aczel
ralphpnj;689064 Wrote: > Also in this issue of TAS is a review of the AudioQuest Diamond USB > cable by the TAS editor-in-chief Robert Harley, who's work I've always > respected, with the tag line "No two USB cables sound alike. Robert > Harley discovers one of the best." I guess even RH has now drank the > kool-aid. Too bad, he showed so much promise. Harley's always been a crank. There's some commentary by Peter Aczel about him and an article he presented at an AES convention in 1991. It's called 'The 91st Audio Engineering Society Convention; or, The Invasion of the Credibility Snatchers' (http://theaudiocritic.com/back_issues/The_Audio_Critic_17_r.pdf). The link is a PDF file. The followup article by Jeff Corey is very good too. -- andy_c andy_c's Profile: http://forums.slimdevices.com/member.php?userid=3128 View this thread: http://forums.slimdevices.com/showthread.php?t=93479 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] If only all audiophiles were like this man, Peter Aczel
pandasharka;689634 Wrote: > Be thankful that Logitech clearly have no time to monitor these forums > closely. If they did, they would discover that an increasing amount of > their storage is being wasted on posts by our resident idiot MCR that > while amusing: > > a)are now months past their sell-by > b)contribute zip > c)have probably been regurgitated and plagiarized from some other > site. > > I enjoy reading this forum for ideas and information. I do not enjoy > seeing the moniker of this propellorhead on threads I'm interested in - > together with the resultant response from fellow members. > > This guy could start an argument in an empty room. > > Now, where is the button to make a recommendation to Logitech > moderators to get this idiot barred? > > Many thanks Logitech CEO is my drinking buddy, so don't hold your breath... -- magiccarpetride magiccarpetride's Profile: http://forums.slimdevices.com/member.php?userid=37863 View this thread: http://forums.slimdevices.com/showthread.php?t=93479 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] If only all audiophiles were like this man, Peter Aczel
pandasharka;689643 Wrote: > Amazing how you seem to pop up so soon after a post to do with your > buddy. > > You certain you're not swapping personalities or sarnies out of your > newly updated plastic sandwich box? > > Geek? Without question. Intelligent? Probably more than most on here. > Relevence? Sadly most of it belonging on a forum in a parallel > universe.. or Helicopter Spotters magazine.. OK, I'm busted! You've finally managed to see through the charade -- SBGK and I are one and the same person! (closing curtain) -- magiccarpetride magiccarpetride's Profile: http://forums.slimdevices.com/member.php?userid=37863 View this thread: http://forums.slimdevices.com/showthread.php?t=93479 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] If only all audiophiles were like this man, Peter Aczel
pandasharka;689643 Wrote: > Amazing how you seem to pop up so soon after a post to do with your > buddy. > > You certain you're not swapping personalities or sarnies out of your > newly updated plastic sandwich box? > > Geek? Without question. Intelligent? Probably more than most on here. > Relevence? Sadly most of it belonging on a forum in a parallel > universe.. or Helicopter Spotters magazine.. Mark, why are you so fascinated about what's in my lunch box ? plenty big enough for you if you're interested. Can be in Hampshire this weekend if you want, you shouldn't repress your feelings. -- SBGK SBGK's Profile: http://forums.slimdevices.com/member.php?userid=52003 View this thread: http://forums.slimdevices.com/showthread.php?t=93479 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Crackling only through server?
How intermittant is this crackling? Only at a certain frequency in the highs, piano for instance about 2/3rds into the higher keys it'll crackle there whenever these notes are struck but not any higher or lower notes. -- mashley mashley's Profile: http://forums.slimdevices.com/member.php?userid=36549 View this thread: http://forums.slimdevices.com/showthread.php?t=82558 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] If only all audiophiles were like this man, Peter Aczel
SBGK;689637 Wrote: > Mark, do you use propellorhead as a term of respect as in mcr is a very > intelligent geek or do you mean something else ? > > luv your posts, keep it real Amazing how you seem to pop up so soon after a post to do with your buddy. You certain you're not swapping personalities or sarnies out of your newly updated plastic sandwich box? Geek? Without question. Intelligent? Probably more than most on here. Relevence? Sadly most of it belonging on a forum in a parallel universe.. or Helicopter Spotters magazine.. -- pandasharka pandasharka's Profile: http://forums.slimdevices.com/member.php?userid=45806 View this thread: http://forums.slimdevices.com/showthread.php?t=93479 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Speaker placement question
magiccarpetride;689555 Wrote: > What difference does it make? Isn't it like asking me what color is my > ethernet cable? Originally Posted by pski: "I asked what model of Magnepan you have. I don't remember that one. (The Crazy one.) Neither does the manufacturer. Did you get that from the product plate ? Make it easy to help. " The various models of Magnepans have very specific instructions on placement that answer all your questions about starting position, separation, and adjustment distances. Of course, it is possible you don't really want facts in response to your starting the thread. P -- pski real stereo doesn't just wake the neighbors, it -enrages- them.. It is truly the Golden Age of Wireless pski's Profile: http://forums.slimdevices.com/member.php?userid=15574 View this thread: http://forums.slimdevices.com/showthread.php?t=93503 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] If only all audiophiles were like this man, Peter Aczel
pandasharka;689634 Wrote: > Be thankful that Logitech clearly have no time to monitor these forums > closely. If they did, they would discover that an increasing amount of > their storage is being wasted on posts by our resident idiot MCR that > while amusing: > > a)are now months past their sell-by > b)contribute zip > c)have probably been regurgitated and plagiarized from some other > site. > > I enjoy reading this forum for ideas and information. I do not enjoy > seeing the moniker of this propellorhead on threads I'm interested in - > together with the resultant response from fellow members. > > This guy could start an argument in an empty room. > > Now, where is the button to make a recommendation to Logitech > moderators to get this idiot barred? > > Many thanks Mark, do you use propellorhead as a term of respect as in mcr is a very intelligent geek or do you mean something else ? luv your posts, keep it real -- SBGK SBGK's Profile: http://forums.slimdevices.com/member.php?userid=52003 View this thread: http://forums.slimdevices.com/showthread.php?t=93479 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] If only all audiophiles were like this man, Peter Aczel
magiccarpetride;689630 Wrote: > You guys are so easily outraged. Be thankful that Logitech clearly have no time to monitor these forums closely. If they did, they would discover that an increasing amount of their storage is being wasted on posts by our resident idiot MCR that while amusing: a)are now months past their sell-by b)contribute zip c)have probably been regurgitated and plagiarized from some other site. I enjoy reading this forum for ideas and information. I do not enjoy seeing the moniker of this propellorhead on threads I'm interested in - together with the resultant response from fellow members. This guy could start an argument in an empty room. Now, where is the button to make a recommendation to Logitech moderators to get this idiot barred? Many thanks -- pandasharka pandasharka's Profile: http://forums.slimdevices.com/member.php?userid=45806 View this thread: http://forums.slimdevices.com/showthread.php?t=93479 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] If only all audiophiles were like this man, Peter Aczel
chill;689622 Wrote: > Tempting as it is to be outraged by MCR, it's worth remembering that his > attempt to insult a respected forum member is probably just more of the > attention-seeking behaviour that Soulkeeper pointed out. You guys are so easily outraged. -- magiccarpetride magiccarpetride's Profile: http://forums.slimdevices.com/member.php?userid=37863 View this thread: http://forums.slimdevices.com/showthread.php?t=93479 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] If only all audiophiles were like this man, Peter Aczel
TheOctavist;689613 Wrote: > hes not native english speaking, numbnuts. rather read him than you > anyday Tempting as it is to be outraged by MCR, it's worth remembering that his attempt to insult a respected forum member is probably just more of the attention-seeking behaviour that Soulkeeper pointed out. -- chill chill's Profile: http://forums.slimdevices.com/member.php?userid=10839 View this thread: http://forums.slimdevices.com/showthread.php?t=93479 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] If only all audiophiles were like this man, Peter Aczel
magiccarpetride;689461 Wrote: > Ah, feels so great being this popular. People can't seem to be able to > stop talking about me. My, my... hes not native english speaking, numbnuts. rather read him than you anyday -- TheOctavist Vortexbox>SBT(stock(TT failed dbt)>>Forssell MDAC-2>>>Klein and Hummell 0300D Sota Sapphire/Lyra Kleos>>Bespoke Valve Phono Stage>>Mastersound Due Venti>>Link Audio K100 TheOctavist's Profile: http://forums.slimdevices.com/member.php?userid=52700 View this thread: http://forums.slimdevices.com/showthread.php?t=93479 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] If only all audiophiles were like this man, Peter Aczel
Mnyb;689206 Wrote: > One isolated example if you try to be hifi intrested you soon realise > all hardware is 5 to 10 times more expensive than it should be due to > uneccessary over engineering, and even more expensive due that normal > people are scared away from this hoby/cult add the wast amount of even > more bizzare rech that performs worse than a chinese wallmart dvd and > sells for 1$ > so you are basically conned as soon as join the cult. > So ex cult members feels like they been had :) > > And in general pseudoscience is more harmfull to society than many > people credit, much more harmfull. > and cult are very harmfull to you. > > Audiophilia is an obscure and benign example it may ruin a fammily > economy and some relationships but not your health ( usually ). You > divert resources to crap instead of suporting a usefull industry with > your $ carbonfootprint for nothing anyone ? > > But as it is a subspeices of pseudoscience that are also an informal > cult, it worries me . > > I'm in genral against pseudoscience it is a menace and penetrate > society on all levels and do damage, llok at all the med quakery ! > And I'm also aginst cults as they destoy people . > > No audiophilia is not as bad as scientology or anthroposophy or > homeophaty, or my pet hate creationism or any of that ilk :) > > But it is the same kind of wideeyed uncritical flawed thinking at work > . > > Human decision making and society would gain a lot of you just take 5 > and think about things critically or > sceptically for a while now and then. > > The dark ages is a prime example , they burned people for heressy, we > can get there again really quick. > Imo religion have robbed humanity of at least 1000 years of development > and countless millions have suffered. How many suffers from HIV due the > catholics ban on condoms you tell me that BS is not harmfull :) > > Bs perverts the human mind thats the problem. I must say that I agree with you wholehaeartedly. As Dilbert (comic strip) engineer is fond af saying; "when did ignorance become a point of view" -- Squeezed_Rotel John Marshall SqueezeCenter 7.3.4 running on a DIY PC, Windows 7 64 bit o.s., with Inguz Audio EQ/DRC. (1) Transporter, & (4) Booms connected through a Linksys WRT54gs router and Linksys WAP54g access point. Using an iPad with both SqueezePad & iPeng for controllers. Transporter => Rotel RC1070 preamp => Rotel RB1080 2 channel amp => Bowers & Wilkins 805 Speakers. Headphone setup: Transporter => Woo Audio WA22 balanced headphone amp => Sennheiser HD800 headphones. Squeezed_Rotel's Profile: http://forums.slimdevices.com/member.php?userid=30002 View this thread: http://forums.slimdevices.com/showthread.php?t=93479 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] If only all audiophiles were like this man, Peter Aczel
Mnyb;689550 Wrote: > > Is there any other magaszine that has this high quality journalism ? > > www.audioholics.com is pretty good for real reviews of audio gear without a lot of 'audiophlile' lingo. Todd -- ToddSTS ToddSTS's Profile: http://forums.slimdevices.com/member.php?userid=2555 View this thread: http://forums.slimdevices.com/showthread.php?t=93479 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Tired of compression ruining your music?
Another initiative: http://forums.slimdevices.com/showthread.php?t=86519 Darren -- darrenyeats http://www.amazon.co.uk/gp/richpub/listmania/byauthor/A3H57URKQB8AQO/ref=cm_pdp_content_listmania/203-7606506-5721503. SB Touch darrenyeats's Profile: http://forums.slimdevices.com/member.php?userid=10799 View this thread: http://forums.slimdevices.com/showthread.php?t=93506 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Crackling only through server?
Ornthe favorite player buffer trick ! That we always recomed for other purposes . Mid song pull out the ethernet cable from the squeezebox it should have 20-30s of music in the buffer even if it is a flac file , does this stop the crackle ( untill the buffer empties of course ) IBM is properly grounded and the network cables are not screened ? -- Mnyb Main hifi: Touch + CIA PS +MeridianG68J MeridianHD621 MeridianG98DH 2 x MeridianDSP5200 MeridianDSP5200HC 2 xMeridianDSP3100 +Rel Stadium 3 sub. Bedroom/Office: Boom Kitchen: Touch + powered Fostex PM0.4 Misc use: Radio (with battery) iPad 64gB wifi +3g with iPengHD & SqueezePad (in storage SB3, reciever ,controller ) Mnyb's Profile: http://forums.slimdevices.com/member.php?userid=4143 View this thread: http://forums.slimdevices.com/showthread.php?t=82558 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Speaker placement question
magiccarpetride;689557 Wrote: > That's gonna save me oodles of time and will also spare my poor back:) Which was why I suggested it. I have the same problem (except my speakers are spiked into the floor! I managed to find a cunning way round this problem using Linn Skeets on my wooden floor). -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal... Touch(wired/W7)+Teddy Pardo PSU - Audiolense 3.3/2.0+INGUZ DRC - MF M1 DAC - Linn 5103 - full Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Pekin Tuner, Townsend Supertweeters,VdH Toslink,Kimber 8TC Speaker & Chord Signature Plus Interconnect cables Stax4070+SRM7/II phones Kitchen Boom, Outdoors: SB Radio, Harmony One remote for everything. Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=93503 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Speaker placement question
firedog;689478 Wrote: > http://www.computeraudiophile.com/content/Magnepan-37-I-give > > See this thread with the entry by music producer Barry Diament, where > he talks about floating his Maggies on roller platforms and how it > improves the sound. He also has an article on his website about room > setup Interesting how he anticipates Maggies will pressurize his room better than the high end box speakers he has. The debate elsewhere seems to be revolving around the opinion that Maggies, being dipole, are incapable of pressurizing rooms. -- magiccarpetride magiccarpetride's Profile: http://forums.slimdevices.com/member.php?userid=37863 View this thread: http://forums.slimdevices.com/showthread.php?t=93503 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Speaker placement question
Phil Leigh;689477 Wrote: > Yes > You are still comparing apples with apples. Try it. That's gonna save me oodles of time and will also spare my poor back:) -- magiccarpetride magiccarpetride's Profile: http://forums.slimdevices.com/member.php?userid=37863 View this thread: http://forums.slimdevices.com/showthread.php?t=93503 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Speaker placement question
pski;689432 Wrote: > I asked what model of Magnepan you have. I don't remember that one. > Neither does the manufacturer. > > Did you get that from the product plate ? > > Make it easy to help. What difference does it make? Isn't it like asking me what color is my ethernet cable? -- magiccarpetride magiccarpetride's Profile: http://forums.slimdevices.com/member.php?userid=37863 View this thread: http://forums.slimdevices.com/showthread.php?t=93503 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] If only all audiophiles were like this man, Peter Aczel
totoro;689536 Wrote: > Sigh. You are correct. Sometimes it is hard not to say anything. To our help the forum has a function where you can put people on an ignore list, this is partly offset by people quoting these things -- Mnyb Main hifi: Touch + CIA PS +MeridianG68J MeridianHD621 MeridianG98DH 2 x MeridianDSP5200 MeridianDSP5200HC 2 xMeridianDSP3100 +Rel Stadium 3 sub. Bedroom/Office: Boom Kitchen: Touch + powered Fostex PM0.4 Misc use: Radio (with battery) iPad 64gB wifi +3g with iPengHD & SqueezePad (in storage SB3, reciever ,controller ) Mnyb's Profile: http://forums.slimdevices.com/member.php?userid=4143 View this thread: http://forums.slimdevices.com/showthread.php?t=93479 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] If only all audiophiles were like this man, Peter Aczel
i was happy to discover audiocritic :) but sad to see that it nowadays is an iregular webzine , basically run by the old guy himself + ocasional friend :-/ this can not last and then what ? Is there any other magaszine that has this high quality journalism ? Very interisting tests, anyone still under the illusion that most high end products is well designed can read some of the old numbers avaible, the products are long obselete and much have happen since but anyway. The usual cult literature rarely finds obvius flaws and malfunctions and reporting it to customers as such. Some of these reviews have engineers at least on par ( or better ) analysing the circiut design cool :) I like a magasine that recomends an Sony ES CD player over an Accuphase due to better parts and design inside the Sony for 1/5 of the price. Imo if you are to review a thing in public seriusly you should understand how and why it works. None of the golden ears are qualified . Good to see the powercube measurment again , it was popular in a magasines where i live. -- Mnyb Main hifi: Touch + CIA PS +MeridianG68J MeridianHD621 MeridianG98DH 2 x MeridianDSP5200 MeridianDSP5200HC 2 xMeridianDSP3100 +Rel Stadium 3 sub. Bedroom/Office: Boom Kitchen: Touch + powered Fostex PM0.4 Misc use: Radio (with battery) iPad 64gB wifi +3g with iPengHD & SqueezePad (in storage SB3, reciever ,controller ) Mnyb's Profile: http://forums.slimdevices.com/member.php?userid=4143 View this thread: http://forums.slimdevices.com/showthread.php?t=93479 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Tired of compression ruining your music?
Jeff Flowerday;689545 Wrote: > Because he asked that it not be compressed and he got what he wanted? > I'm confused.Sorry, I read "out without" as "out with". Thanks for catching > that. I feel better now. -- Henry66 Henry66's Profile: http://forums.slimdevices.com/member.php?userid=38863 View this thread: http://forums.slimdevices.com/showthread.php?t=93506 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Theoretical benefits to hi-res if only max 20kHz signal?
Wombat;689287 Wrote: > I am no pro but recording, editing, applying effects of cause should be > done at the highest rate it is comfortable to work with. Why not if the > power is simply there with todays hardware. > I did read about several plugins for VST hosts that indeed work at > higher sampling and bitrate internaly. > For the final distribution to us listeners i still think anything > higher as 16/44.1 will hardly give us any benefit. Of cause when this > last step is done correctly. That was my piont, it has merits to produce and record in hirez, however the delivery format to consumer is another question . In every tread we discuss this recording producing and playback is mixed up, they deserve separat treatment . I do believe in 24/96 or 24/48 for another reason , eq and processing does not stop in the recording studio anymore , I have at least 6 digital xover pionts DRC Eq and spatial processing, digital volume controll going on in my home theater . To Meridians credit it can be said that this seems to work very well with any source material, the benefit may be more theoretical and possibly measurable , but audiability may be another question. -- Mnyb Main hifi: Touch + CIA PS +MeridianG68J MeridianHD621 MeridianG98DH 2 x MeridianDSP5200 MeridianDSP5200HC 2 xMeridianDSP3100 +Rel Stadium 3 sub. Bedroom/Office: Boom Kitchen: Touch + powered Fostex PM0.4 Misc use: Radio (with battery) iPad 64gB wifi +3g with iPengHD & SqueezePad (in storage SB3, reciever ,controller ) Mnyb's Profile: http://forums.slimdevices.com/member.php?userid=4143 View this thread: http://forums.slimdevices.com/showthread.php?t=93483 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Tired of compression ruining your music?
Henry66;689539 Wrote: > This disgusts and saddens me. > > Because he asked that it not be compressed and he got what he wanted? I'm confused. -- Jeff Flowerday Jeff Flowerday's Profile: http://forums.slimdevices.com/member.php?userid=15883 View this thread: http://forums.slimdevices.com/showthread.php?t=93506 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Theoretical benefits to hi-res if only max 20kHz signal?
We had this in another thread already. At Steve Hoffmans forums you can read a lot fuzzy statements, so don´t give that to much weight. The other thread shows exctly the misleading pics i mentioned before. Make these pics spectral and you´ll see all this post and pre stuff happens well above 20kHz if done correctly. Even the aliasing back can be above 20kHz, no problem. No one can really hear if the noise above 20Khz is music or aliasiad garbage. You may try to create a file with no content below 20kHz and abx it, good luck!! :) Also these apodizing and minimum or intermediate phase as far as i tested them clearly alter frequencies below 20kHz and may be audible just because of that. You won´t see that on that funny impulse pic. Also imagine the studio engineer already did the downsampling with some minimun filter and now you apply one again? In theory you must fiddle with a setting for every single recording. One other thing is that if all the junk above 20kHz changes the way your audio equipment sounds it is time to wonder. -- Wombat Transporter (modded) -> RG142 -> Avantgarde Acoustic based 500VA monoblocks -> Sommer SPK240 -> self-made speakers Wombat's Profile: http://forums.slimdevices.com/member.php?userid=4113 View this thread: http://forums.slimdevices.com/showthread.php?t=93483 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Tired of compression ruining your music?
Soulkeeper;689504 Wrote: > I sent that link to our producer before the mastering of my band's first > album. He told me that he was aware of the effort, and he agreed with > it, but he also said that nothing seemed to have happened over there > during the last few years. > > So the record came out without extreme compression This disgusts and saddens me. I am clueless about the process involved in making music commercially available, so explain this to me in a simple way: Why do you (the band) have no say in how your product sounds? -- Henry66 Henry66's Profile: http://forums.slimdevices.com/member.php?userid=38863 View this thread: http://forums.slimdevices.com/showthread.php?t=93506 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 3.0
AlexM;689501 Wrote: > The question is how low jitter has to be before it is inaudible. Indeed it is. If the jitter is already beneath the threshold of audibility, reducing it further is a pointless exercise. And guess what? In the two PROPERLY CONDUCTED trials of jitter audibility I am aware of (Benjamin & Gannon: Theoretical and audible effects of jitter on digital audio quality, 105th AES Convention, 1998; and Ashihara, Kiryu et al: Detection threshold for distortions due to jitter on digital audio, Acoust. Sci. & Tech. 26/1, 2005), it was shown that really quite high levels of jitter are inaudible on music signals. Benjamin & Gannon found jitter inaudible below 20nS, while Ashihara found it inaudble below 250nS. The point about these trials is that the only thing that changed was the jitter itself. Isolating this as the only variable is critical if you expect to be able to draw any conclusions as to the effects of jitter. So: CAN WE PLEASE STOP TREATING JITTER AS SOME SORT OF BOGEYMAN? There are other reasons why different bit-identical data streams may sound different through the same DAC: 1. Expectation bias on the part of the listener. This is probably the real reason in >90% of cases. 2. Noise (electrical and/or airborn) emitted by various components interfering with the analogue stages of other system components. And the complexity of this is huge - it depends on the components themselves, their relative placement, even the influence of nearby metallic objects such as equipment stands. This is a classic example of a complex system, impenetrable by reductionist analysis. Any effects noted in one system will have little or no relevance in another system. -- cliveb Transporter -> ATC SCM100A cliveb's Profile: http://forums.slimdevices.com/member.php?userid=348 View this thread: http://forums.slimdevices.com/showthread.php?t=91322 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] If only all audiophiles were like this man, Peter Aczel
Soulkeeper;689502 Wrote: > Totoro (and others communicating with attention-seekers on and off > forums), perhaps you should 'read this' > (http://en.wikipedia.org/wiki/Tactical_ignoring). Sigh. You are correct. Sometimes it is hard not to say anything. -- totoro sb3 -> mccormack dna .5 -> audio physic tempo 4 + rel storm 3 totoro's Profile: http://forums.slimdevices.com/member.php?userid=5935 View this thread: http://forums.slimdevices.com/showthread.php?t=93479 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 3.0
Phil Leigh;689509 Wrote: > The audio data in the Touch is not cached per se in the tradional sense > - it is held in a FIFO ram buffer, since it is read once. Ah, yes, the term cache was maybe a poor choice (and of course I was talking about the internal cache or RAM in the CPU) but then again it was a purely theoretical excercise on how the same amount of CPU cycles might present a different amount of EMI depending on where the CPU fetches the data it is processing. My reasoning is that accessing memory external to the CPU is likely to affect the power rails to a higher degree than accessing internal RAM (or cache). This may or may not be relevant for the Touch though, mostly because I'm not all that familiar with its inner workings. I assume though that the FIFO of which you speak is a software implementation using the normal RAM, thus requiring both write and read accesses via a 32 bit DDR2 interface. The question regarding FLAC may be whether the decoding process will generate additional read/write operations to this RAM compared with WAV, or if it will perform the decoding entirely using internal memory. Either way, it may still have an edge on WAV when it comes to memory bus bandwidth. Again, all purely theoretical, I neither claim nor believe that it's really an issue. -- alfista alfista's Profile: http://forums.slimdevices.com/member.php?userid=32396 View this thread: http://forums.slimdevices.com/showthread.php?t=91322 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 3.0
AlexM;689522 Wrote: > Yes, but the chief server side tweaker is clearly quite mad, and has > absolutely no way of knowing whether his dac is jitter insensitive or > not. I would suggest that it isn't as insensitive as he thinks!. > > Clearly I don't buy into packet timing as a cause of output SPDIF > timing jitter either, and also don't think that there is much that can > be done to isolate the effect of the arm processor being active on the > SPDIF clock. Better to concentrate on isolating the effect of Jitter > than trying to eliminate it, but as you say, any fule know that. > > The problem I see is that the vast majority of the nonsense in this > thread is just pointless conjecture looking at the hypothetical causes > of wholly subjective experiences with no underpinning at all. Just look > at the fact that this thread is now 165 pages long, and until recently > nobody had bothered to check whether CPU utilisation was, in fact, > higher or lower when playing flacs or wavs from the server!. > > Jeff - My flacs are level 5, so no idea if level 8 has a different > effect. I think the coding process is asymmetric, so maybe level 8 > doesn't take much longer to decode than level 5. The file size > differences I have noticed are minimal between them. And yes, this does > seem to fly in the face of Klaus's rationale for the purported > subjective improvements. > > My view is that I haven't noticed any significant audible differences, > at least not on the scale noticed by some, but am paranoid/tweaky > enough to be using them anyway!. > > Regards, > Alex Flac 8 does take marginally more than 5 to decode... and both take a lot less to decode than they took to encode (that's the asymmetric bit). There's some facts about this somewhere on the Net... :-) The truly paranoid would of course downsample their hi-res files to 24/44.1 to minimise Touch CPU activity... :-) -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal... Touch(wired/W7)+Teddy Pardo PSU - Audiolense 3.3/2.0+INGUZ DRC - MF M1 DAC - Linn 5103 - full Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Pekin Tuner, Townsend Supertweeters,VdH Toslink,Kimber 8TC Speaker & Chord Signature Plus Interconnect cables Stax4070+SRM7/II phones Kitchen Boom, Outdoors: SB Radio, Harmony One remote for everything. Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=91322 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 3.0
adamdea;689512 Wrote: > Yes of course, as molesworth would say, "any fule no that" . Amusingly > IIRC you will find that the chief server-side -tweakmeister uses a dac > which is famously jitter immune. > > However, I simply wanted to see whether if one goes along with the > hypothesis that packet timing made a difference, there was a design > solution. The implication is that the touch is designed in such a way > that its cpu load interferes significantly with the audio circuits. I > just wondered whether there was any way in which this could be > isolated. > > It's unnecessary to explain to me that this packet timing hypothesis is > no more than a work of imagination contrived to validate highly > questionable subjective findings. Yes, but the chief server side tweaker is clearly quite mad, and has absolutely no way of knowing whether his dac is jitter insensitive or not. I would suggest that it isn't as insensitive as he thinks!. Clearly I don't buy into packet timing as a cause of output SPDIF timing jitter either, and also don't think that there is much that can be done to isolate the effect of the arm processor being active on the SPDIF clock. Better to concentrate on isolating the effect of Jitter than trying to eliminate it, but as you say, any fule know that. The problem with the vast majority of the nonsense in this thread is pointless conjecture looking at the hypothetical causes of wholly subjective experiences with no underpinning at all. Just look at the fact that this thread is now 165 pages long, and until recently nobody had bothered to check whether CPU utilisation was, in fact, higher or lower when playing flacs or wavs from the server!. Jeff - My flacs are level 5, so no idea if level 8 has a different effect. I think the coding process is asymmetric, so maybe level 8 doesn't take much longer to decode than level 5. The file size differences I have noticed are minimal between them. And yes, this does seem to fly in the face of Klaus's rationale for the purported subjective improvements. My view is that I haven't noticed any significant audible differences, at least not on the scale noticed by some, but am paranoid/tweaky enough to be using them anyway!. Regards, Alex -- AlexM AlexM's Profile: http://forums.slimdevices.com/member.php?userid=40609 View this thread: http://forums.slimdevices.com/showthread.php?t=91322 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Crackling only through server?
mashley;689506 Wrote: > Thanks Phil, can you elaborate and is there any way to test, before > going down the new power supply route. Sure, does the crackling immediately stop if you pull the mains plug on the IBM? The power supply is the most likely to fail of any PC component. IF it is starting to fail, it COULD be putting out cr@p into the air or over its connections to other things. How intermittant is this crackling? -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal... Touch(wired/W7)+Teddy Pardo PSU - Audiolense 3.3/2.0+INGUZ DRC - MF M1 DAC - Linn 5103 - full Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Pekin Tuner, Townsend Supertweeters,VdH Toslink,Kimber 8TC Speaker & Chord Signature Plus Interconnect cables Stax4070+SRM7/II phones Kitchen Boom, Outdoors: SB Radio, Harmony One remote for everything. Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=82558 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 3.0
Jeff Flowerday;689513 Wrote: > So even if you use the highest (8) flac compression the cpu load is > still lower than sending wav? > > This kind of is the exact opposite of Klaus's recommendations, isn't > it? :) It MIGHT BE and yes. Personally I use FLAC 0 on the wire from server to Touch and FLAC 5 on disk (it's a long story to do with using Inguz...) -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal... Touch(wired/W7)+Teddy Pardo PSU - Audiolense 3.3/2.0+INGUZ DRC - MF M1 DAC - Linn 5103 - full Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Pekin Tuner, Townsend Supertweeters,VdH Toslink,Kimber 8TC Speaker & Chord Signature Plus Interconnect cables Stax4070+SRM7/II phones Kitchen Boom, Outdoors: SB Radio, Harmony One remote for everything. Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=91322 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 3.0
So even if you use the highest (8) flac compression the cpu load is still lower than sending wav? This kind of is the exact opposite of Klaus's recommendations, isn't it? :) -- Jeff Flowerday Jeff Flowerday's Profile: http://forums.slimdevices.com/member.php?userid=15883 View this thread: http://forums.slimdevices.com/showthread.php?t=91322 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 3.0
AlexM;689501 Wrote: > Adam, > > In short, no. > > The question is how low jitter has to be before it is inaudible. Surely > it is better to concentrate on reducing the jitter sensitivity of the > spdif receiver of the dac. My dac is designed to greatly reduce the > significance of jitter on distortion, so perhaps this is why I haven't > heard any clearly discernable differences from using the soundcheck > mods, flac or wave playback and so on. > > Stereophile's measurements of the analogue outputs playing a test tone > showed that jitter products were below 120db whether streaming from > wifi or playing from a USB stick. I conclude from this that network > activity has very little effect on jitter, at least when d to a > conversion is done by the touch. > > See > http://www.stereophile.com/content/logitech-squeezebox-touch-network-music-player-measurements > for more info. > > Regards, > Alex Yes of course, as molesworth would say, "any fule no that" . Amusingly IIRC you will find that the chief server-side -tweakmeister uses a dac which is famously jitter immune. However, I simply wanted to see whether if one goes along with the hypothesis that packet timing made a difference, there was a design solution. The implication is that the touch is designed in such a way that its cpu load interferes significantly with the audio circuits. I just wondered whether there was any way in which this could be isolated. It's unnecessary to explain to me that this packet timing hypothesis is no more than a work of imagination contrived to validate highly questionable subjective findings. -- adamdea adamdea's Profile: http://forums.slimdevices.com/member.php?userid=37603 View this thread: http://forums.slimdevices.com/showthread.php?t=91322 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 3.0
alfista;689492 Wrote: > Interesting observation which shows that unless you make the effort of > understanding the design you may make faulty assumptions on what > operations are the most demanding. > Also, not all kinds of processing is equal from a noise perspective. It > is quite likely that operations that require a few more cpu cycles but > operate largely on cached data would cause less noise on the power > supply than more IO-intensive tasks even though they might not take as > much processing. The audio data in the Touch is not cached per se in the tradional sense - it is held in a FIFO ram buffer, since it is read once. Some other data may be cached, though. -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal... Touch(wired/W7)+Teddy Pardo PSU - Audiolense 3.3/2.0+INGUZ DRC - MF M1 DAC - Linn 5103 - full Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Pekin Tuner, Townsend Supertweeters,VdH Toslink,Kimber 8TC Speaker & Chord Signature Plus Interconnect cables Stax4070+SRM7/II phones Kitchen Boom, Outdoors: SB Radio, Harmony One remote for everything. Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=91322 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 3.0
AlexM;689489 Wrote: > I think that because the touch is telling the server when it is ready to > recieve more packets, variation in packet timing is not mainly under the > control of the server > > Variation in network switching latency and jitter is a second-order > effect in a switched network, and will be fairly constant assuming that > the link to the server has adequite bandwidth. IMO variation in the > transmission rate as a result of server-side processing is also likely > to be a second order effect concerning packet timing as this is > controlled by the Touch. > > Phil, From the testing I have done, higher CPU utilisation is the > result of streaming WAVs, and this is primarily the overhead of > processing the additional packets. I deduce from this that the NIC has > no TCP offload functions, and the CPU controls all networking > functions. I suggest that reducing the data volume reduces the CPU > load, so probably best to stay with FLAC. > > Regards, > Alex Thanks Alex - yes that is where I was going... less packets = better, therefore send FLAC... The CPU load for flac unpacking is very small... -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal... Touch(wired/W7)+Teddy Pardo PSU - Audiolense 3.3/2.0+INGUZ DRC - MF M1 DAC - Linn 5103 - full Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Pekin Tuner, Townsend Supertweeters,VdH Toslink,Kimber 8TC Speaker & Chord Signature Plus Interconnect cables Stax4070+SRM7/II phones Kitchen Boom, Outdoors: SB Radio, Harmony One remote for everything. Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=91322 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Theoretical benefits to hi-res if only max 20kHz signal?
So here's a question somewhat related My DAC has multiple filter settings, I'm interested in why they chose any 2 parituclar filter combination to apply for low and high res. More specifically the last 2 settings: Setting 5, Minimum Phase Apodizing used for low res, anything above 24/48 uses Linear Phase Apodizing. Or it could be toggled to do the exact opposite with setting 4. http://www.stevehoffman.tv/forums/archive/index.php/t-239298.html http://hifiduino.blogspot.com/2009/05/wm8741-digital-filters.html -- Jeff Flowerday Jeff Flowerday's Profile: http://forums.slimdevices.com/member.php?userid=15883 View this thread: http://forums.slimdevices.com/showthread.php?t=93483 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Crackling only through server?
Thanks Phil, can you elaborate and is there any way to test, before going down the new power supply route. -- mashley mashley's Profile: http://forums.slimdevices.com/member.php?userid=36549 View this thread: http://forums.slimdevices.com/showthread.php?t=82558 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Tired of compression ruining your music?
steveinaz;689370 Wrote: > Please share this site on any other hi-fi forums you may be a member > of. Audiophiles, lets do this! I sent that link to our producer before the mastering of my band's first album. He told me that he was aware of the effort, and he agreed with it, but he also said that nothing seemed to have happened over there during the last few years. So the record came out without extreme compression, but also without a tunemeup sticker. So I've got the impression that the project is dead, even though awareness is still rising. -- Soulkeeper 'Bug 17797: Updating wiki.slimdevices.com' (http://bugs.slimdevices.com/show_bug.cgi?id=17797) Soulkeeper's Profile: http://forums.slimdevices.com/member.php?userid=35297 View this thread: http://forums.slimdevices.com/showthread.php?t=93506 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] If only all audiophiles were like this man, Peter Aczel
Totoro, you should 'read this' (http://en.wikipedia.org/wiki/Tactical_ignoring). -- Soulkeeper 'Bug 17797: Updating wiki.slimdevices.com' (http://bugs.slimdevices.com/show_bug.cgi?id=17797) Soulkeeper's Profile: http://forums.slimdevices.com/member.php?userid=35297 View this thread: http://forums.slimdevices.com/showthread.php?t=93479 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 3.0
Adam, In short, no. The question is how low jitter has to be before it is inaudible. Surely it is better to concentrate on reducing the jitter sensitivity of the spdif receiver of the dac. My dac is designed to greatly reduce the significance of jitter on distortion, so perhaps this is why I haven't heard any clearly discernable differences from using the soundcheck mods, flac or wave playback and so on. Stereophile's measurements of the analogue outputs playing a test tone showed that jitter products were below 120db whether streaming from wifi or playing from a USB stick. I conclude from this that network activity has very little effect on jitter, at least when d to a conversion is done by the touch. See http://www.stereophile.com/content/logitech-squeezebox-touch-network-music-player-measurements for more info. Regards, Alex -- AlexM AlexM's Profile: http://forums.slimdevices.com/member.php?userid=40609 View this thread: http://forums.slimdevices.com/showthread.php?t=91322 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 3.0
alfista;689492 Wrote: > Interesting observation which shows that unless you make the effort of > understanding the design you may make faulty assumptions on what > operations are the most demanding. > Also, not all kinds of processing is equal from a noise perspective. It > is quite likely that operations that require a few more cpu cycles but > operate largely on cached data would cause less noise on the power > supply than more IO-intensive tasks even though they might not take as > much processing. OK stepping back for a minute If one were to take seriously the idea that cpu load may affect (via the groundplane or otherwise) the SPDIF out either by producing jitter in the code or by introducing noise... then does there exist a hardware mod which would be likely to address this question directly. would it help to provide a separate regulated power supply to the cpu or something? -- adamdea adamdea's Profile: http://forums.slimdevices.com/member.php?userid=37603 View this thread: http://forums.slimdevices.com/showthread.php?t=91322 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 3.0
AlexM;689489 Wrote: > From the testing I have done, higher CPU utilisation is the result of > streaming WAVs, and this is primarily the overhead of processing the > additional packets. // I suggest that reducing the data volume reduces > the CPU load, so probably best to stay with FLAC. Interesting observation which shows that unless you make the effort of understanding the design you may make faulty assumptions on what operations are the most demanding. Also, not all kinds of processing is equal from a noise perspective. It is quite likely that operations that require a few more cpu cycles but operate largely on cached data would cause less noise on the power supply than more IO-intensive tasks even though they might not take as much processing. -- alfista alfista's Profile: http://forums.slimdevices.com/member.php?userid=32396 View this thread: http://forums.slimdevices.com/showthread.php?t=91322 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 3.0
I think that because the touch is telling the server when it is ready to recieve more packets, variation in packet timing is not mainly under the control of the server Variation in network switching latency and jitter is a second-order effect in a switched network, and will be fairly constant assuming that the link to the server has adequite bandwidth. IMO variation in the transmission rate as a result of server-side processing is also likely to be a second order effect concerning packet timing as this is controlled by the Touch. Phil, From the testing I have done, higher CPU utilisation is the result of streaming WAVs, and this is primarily the overhead of processing the additional packets. I deduce from this that the NIC has no TCP offload functions, and the CPU controls all networking functions. I suggest that reducing the data volume reduces the CPU load, so probably best to stay with FLAC. Regards, Alex -- AlexM AlexM's Profile: http://forums.slimdevices.com/member.php?userid=40609 View this thread: http://forums.slimdevices.com/showthread.php?t=91322 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Speaker placement question
rgro;689337 Wrote: > There seem to be some number of folks who purport to get good results > out of this fellow's stuff > > http://www.getbettersound.com/ > > If I could afford it, it'd be totally fun to have him come out and see > him do this work in person. If you check out the contents, several topics mention the "grid" placement method as one alternative. This is another term for the odd fractions rule of thumb, I believe. Darren -- darrenyeats http://www.amazon.co.uk/gp/richpub/listmania/byauthor/A3H57URKQB8AQO/ref=cm_pdp_content_listmania/203-7606506-5721503. SB Touch darrenyeats's Profile: http://forums.slimdevices.com/member.php?userid=10799 View this thread: http://forums.slimdevices.com/showthread.php?t=93503 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 3.0
JohnSwenson;689377 Wrote: > Actually there is another way: packet timing. When a packet comes in the > processor does a lot of work moving that data around to different > buffers up and down the protocol "stack" causing lots of memory > accesses, which creates noise on the PS traces and groundplane. > Different packet timing causes different spectrum of this noise. I have > actually measured this on the groundplane of a different small computer > (FitPC) (I haven't done it on a Touch because its a pain to open and > close the thing!). Now how this relates to sound quality is a whole > different story, but its not inconceivable that spectral changes in > groundplane noise might affect the sound. > > Changes in OS thread priorites, scheduling policies etc CAN change > packet timing, as can using a switch, going from GB to 100MB etc. And > as you mention pulling the cable should should fairly quickly stop any > noise generated by processing packets. > > So I think it is possible that what is going on in the server and or > the network could have an impact on sound. Whether it actually does > will take a LOT of experimentation. Because things like switches in the > path can completelly change the timing behavior, network topology is > also very critical. There are a lot of factors to take into account. > > John S. Generally speaking, the packets are being routed via a router/switch, so the timing of packets being sent by the server is in fact masked by the behaviour of the router/switch. It is the router/switch that is feeding the packets to the Touch, not the server... If anything, it will be the behaviour of the router/switch that determines actual packet arrival timings - won't it? -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal... Touch(wired/W7)+Teddy Pardo PSU - Audiolense 3.3/2.0+INGUZ DRC - MF M1 DAC - Linn 5103 - full Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Pekin Tuner, Townsend Supertweeters,VdH Toslink,Kimber 8TC Speaker & Chord Signature Plus Interconnect cables Stax4070+SRM7/II phones Kitchen Boom, Outdoors: SB Radio, Harmony One remote for everything. Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=91322 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Crackling only through server?
mashley;689463 Wrote: > Ok, no crackling problem coming from the laptop. > > So it's something to do with the IBM for some reason? Hmmm, that's a > pain, otherwise a bloody good desktop computer. > I'll play around with it connected to a UPS and a couple of other > things, but I'm not hoping for much. > > Well, many thanks to yall that helped me with this... Could be a faulty power supply on the IBM. -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal... Touch(wired/W7)+Teddy Pardo PSU - Audiolense 3.3/2.0+INGUZ DRC - MF M1 DAC - Linn 5103 - full Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Pekin Tuner, Townsend Supertweeters,VdH Toslink,Kimber 8TC Speaker & Chord Signature Plus Interconnect cables Stax4070+SRM7/II phones Kitchen Boom, Outdoors: SB Radio, Harmony One remote for everything. Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=82558 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Speaker placement question
http://www.computeraudiophile.com/content/Magnepan-37-I-give See this thread with the entry by music producer Barry Diament, where he talks about floating his Maggies on roller platforms and how it improves the sound. He also has an article on his website about room setup -- firedog GIK Acoustics Room Treatments. Tranquil PC fanless server running Vortexbox OS; SB Touch slaved to Empirical Audio Pace Car; MF X-DAC-V3, MF X-150 as pre-amp, Grant Fidelity B-283MKII buffer>ClassDaudio SDS-470 amp; Devore Gibbon Super 8 Speakers; Dual 506 + Ortofon M20 (occasional use); sometimes use PC with M-Audio 192 as digital source. SB Boom in second room. Arcam CD82 which I don't use anymore, even though it's a very good player. firedog's Profile: http://forums.slimdevices.com/member.php?userid=11550 View this thread: http://forums.slimdevices.com/showthread.php?t=93503 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Speaker placement question
magiccarpetride;689460 Wrote: > Question: my Maggies sound DRASTICALLY different when sitting on the > cones than they sound without the cones. Are you sure that finding the > optimal positioning sans the cones will still sound OK with the cones? Yes You are still comparing apples with apples. Try it. -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal... Touch(wired/W7)+Teddy Pardo PSU - Audiolense 3.3/2.0+INGUZ DRC - MF M1 DAC - Linn 5103 - full Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Pekin Tuner, Townsend Supertweeters,VdH Toslink,Kimber 8TC Speaker & Chord Signature Plus Interconnect cables Stax4070+SRM7/II phones Kitchen Boom, Outdoors: SB Radio, Harmony One remote for everything. Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=93503 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
