Re: [SlimDevices: Audiophiles] Get out your shovels
There is one born every minute To try to judge the real from the false will always be hard. In this fast-growing art of 'high fidelity' the quackery will bear a solid gilt edge that will fool many people - Paul W Klipsch, 1953 Julf's Profile: http://forums.slimdevices.com/member.php?userid=42050 View this thread: http://forums.slimdevices.com/showthread.php?t=100282 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Get out your shovels
Just wow - that's got to be one of the best I've seen! 2 x Duet, Radio, Touch Receiver with iPeng SqueezePlayer served by HP N36 running FreeNAS/SlimNAS/LMS 7.8 HeadBanger's Profile: http://forums.slimdevices.com/member.php?userid=38024 View this thread: http://forums.slimdevices.com/showthread.php?t=100282 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Amazing USB cable breakthrough!!
Do these new cables come in different colours? I find that black cables do also tend to sound better presenting a much richer sound stage. 2 x Duet, Radio, Touch Receiver with iPeng SqueezePlayer served by HP N36 running FreeNAS/SlimNAS/LMS 7.8 HeadBanger's Profile: http://forums.slimdevices.com/member.php?userid=38024 View this thread: http://forums.slimdevices.com/showthread.php?t=100230 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Upsampling Impressions
marcoc1712 wrote: John, could I ask You witch USB DAC are you using? If is kind of a KIt or a commercial product, could you point me to the source? is a kind of the one you'll be using in CSP1? thx a lot. p.s. I could not understand why if you upsample at i.e. 352.8 you still need a software filter, is not assured this way that aliasing is far away from the audible spectrum (reason why the hardware filter is disabled, I suppose)? Marco. The DAC I am using is a custom design I have done so you can't get it anywhere. Speaking of kits, I am designing a somewhat similar DAC for Bottlehead, it will be a kit, but all the hard work is already done on one PCB. It's not available yet, but hopefully will be out sometime early next year. Or just get a CSP! As to upsampling, all (usefull) upsampling has to use a filter, that is just part of the upsampling process. If you just resample the data without applying the filter you haven't actually done anything. This is best with a picture, I don't have one handy (I'm on vacation), maybe someone else can post a picture of this. For the wordy explanation, lets take the output of a basic DAC chip, without any digital or analog filtering you get a stairstep. Upsampling without the filter is just subdividing each of those stairsteps into smaller pieces, but keeping the same values. Lets say you have a sample at .5V level, 8X upsampling gives you 8 shorter samples all at the same .5V, you haven't changed anything. What you want is the upsampler to make a guess at filling in the intermediate values between the .5V sample and the next sample. The filter defines exactly how that is done. The human hearing system seems to be quite sensitive to exactly what that filter does, slight differences in that filter can make significant differences in what we hear. All modern DAC chips do this filtering process builtin to the chip, and every one of them does it in such a way that does not sound so good. This thread is all about doing that filtering externally in order to bypass the not so good version in the DAC chip. John S. JohnSwenson's Profile: http://forums.slimdevices.com/member.php?userid=5974 View this thread: http://forums.slimdevices.com/showthread.php?t=99088 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Get out your shovels
-'The more things change...' (http://www.stereophile.com/features/69)- Apesbrain's Profile: http://forums.slimdevices.com/member.php?userid=738 View this thread: http://forums.slimdevices.com/showthread.php?t=100282 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Upsampling Impressions
JohnSwenson wrote: What you want is the upsampler to make a guess at filling in the intermediate values between the .5V sample and the next sample. John, I've no doubt you know more about the subject than me but I think your language, namely the appearance of want and guess in the same sentence, might fan prejudices about digital audio! Do you mean DAC designers are use cheap short-cuts that aren't in fact even trying for the correct sampling-theory ideal, but instead cheap, expedient replacements of it? Perhaps you're suggesting your way is actually a theoretically more correct way. I am not here arguing with these assertions. All I'm worried about is the wording of the above sentence, since guessing is not something we really -want-, if we are trying to implement sampling theory faithfully (I am sure you agree by the way!) Regards, Darren Check it, add to it! http://www.dr.loudness-war.info/ 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=99088 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Upsampling Impressions
bennyboyph wrote: Cheers - it doesn't want to work at 352.8 or 384kHz, which is what I need to bypass the digital filters of my PCM5102 chip :-( OK. Sox maxrate is 192khz afaik. And your Squeezebox environment (server and client) would have to support 384khz too. ::: ' Touch Toolbox and more' (http://soundcheck-audio.blogspot.com) ::: by soundcheck soundcheck's Profile: http://forums.slimdevices.com/member.php?userid=34383 View this thread: http://forums.slimdevices.com/showthread.php?t=99088 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Get out your shovels
ralphpnj wrote: Get out your shovels and open your wallet because the BS is strong in this one: http://www.thecableco.com/newsletter-detail.aspx?iid=5881 So how much did you pay for them? digital groove | 'Vivere DAC MKI' (http://vivereaudio.com/post/2013/08/16/DAC-I-is-Born!.aspx) | 'ATC SCA2' (http://www.atcloudspeakers.co.uk/hi-fi/electronics/source-pre-amplifiers/sca2/) | 'ATC SCM100ASLT' (http://www.atcloudspeakers.co.uk/hi-fi/loudspeakers/tower-series/scm100aslt/) *'Linux finally gets a great audio tagger' (http://www.ubuntugeek.com/linux-finally-gets-a-great-audio-tagger.html): 'puddletag' (http://puddletag.sourceforge.net/)* - now packaged in most Linux distributions. audiomuze's Profile: http://forums.slimdevices.com/member.php?userid=33613 View this thread: http://forums.slimdevices.com/showthread.php?t=100282 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Get out your shovels
audiomuze wrote: So how much did you pay for them? Two things: First, if you have to ask how much they then you can't afford them. Second, cost is never a factor when dealing with high end audio. Living Rm: Transporter-SimAudio pre/power amps-Vandersteen 3A Sign. sub Home Theater: Touch-Marantz HTR-Energy Veritas 2.1 Linn sub Computer Rm: Touch-Headroom Desktop w/DAC-Aragon amp-Energy Veritas 2.1 Energy sub Bedroom: Touch-HR Desktop w/DAC-Audio Refinement amp-Energy Veritas 2.0 Guest Rm: Duet-Sony soundbar Garage: SB3-JVC compact system Controls: iPeng; SB Controller; Moose Muso Server: SBS on dedicated windows 7 computer w/2 Drobos 'Last.fm' (http://www.last.fm/user/jazzfann/) ralphpnj's Profile: http://forums.slimdevices.com/member.php?userid=10827 View this thread: http://forums.slimdevices.com/showthread.php?t=100282 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Amazing USB cable breakthrough!!
HeadBanger wrote: Do these new cables come in different colours? I find that black cables do also tend to sound better presenting a much richer sound stage. Absolutely! Piltdown C cable has a cyan colored jacket, as in C for cyan. Piltdown L cable has a lavender colored jacket, as L for lavender. Piltdown HR cable has a green colored jacket, as in green with envy. Living Rm: Transporter-SimAudio pre/power amps-Vandersteen 3A Sign. sub Home Theater: Touch-Marantz HTR-Energy Veritas 2.1 Linn sub Computer Rm: Touch-Headroom Desktop w/DAC-Aragon amp-Energy Veritas 2.1 Energy sub Bedroom: Touch-HR Desktop w/DAC-Audio Refinement amp-Energy Veritas 2.0 Guest Rm: Duet-Sony soundbar Garage: SB3-JVC compact system Controls: iPeng; SB Controller; Moose Muso Server: SBS on dedicated windows 7 computer w/2 Drobos 'Last.fm' (http://www.last.fm/user/jazzfann/) ralphpnj's Profile: http://forums.slimdevices.com/member.php?userid=10827 View this thread: http://forums.slimdevices.com/showthread.php?t=100230 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
