Re: [SlimDevices: Audiophiles] Triode's USB 24/192 plug in - sound quality impressions

2012-07-04 Thread Jeff Flowerday

lake_eleven wrote: 
> I am currently using default buffer option in EDO with HRT Music
> Streamer II+. Not sure what the other options are meant for. Any
> suggestion which is the best buffer option to use with HRT DAC. I mostly
> use flac and WAV.

Didn't Triode tell you once already to use the default value?

If you only listen to SBGK's advice then just PM him already.



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Re: [SlimDevices: Audiophiles] Triode's USB 24/192 plug in - sound quality impressions

2012-07-04 Thread lake_eleven

I am currently using default buffer option in EDO with HRT Music
Streamer II+. Not sure what the other options are meant for. Any
suggestion which is the best buffer option to use with HRT DAC. I mostly
use flac and WAV.



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Re: [SlimDevices: Audiophiles] Dac not compatable with SBT?

2012-07-04 Thread cfraser

Soulkeeper wrote: 
> Have you considered going around the problem by configuring LMS to
> upsample all 44.1 kHz material to 88.2 kHz, and all 48 kHz material to
> 96 kHz?

That is a good idea! It might just work.

[What it does is put the sample frequencies that the PLL needs to lock
on much closer together i.e. ~8kHz diff rather than ~52kHz diff.]



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Re: [SlimDevices: Audiophiles] Fidelizer & SBT.. Why should it work?

2012-07-04 Thread Soulkeeper

JohnSwenson wrote: 
> This got me thinking about how computers can affect things. I started
> running tests in my system, and other peoples systems. We did find that
> there was significant difference in sensitivities, some systems more
> than others. At this point I was not interested in a more rigorous
> testing to try and figure out correlations (what was it about a system
> that made it more sensitive).

I often practice with my electric guitar in front of a laptop, so I can
have scores/lyrics/whatnot available on the screen. My guitar used to
pick up harddisk activity and screen scrolling. The guitar amp emitted a
constant hiss/whine from the computer, with disk and graphics card
activity sounding like an old modem on top of that. When I tried to move
away from the computer, towards my fish tanks, I could hear the
fluorescent tubes from the fish tank lights instead. All this noise was
so annoying it impaired my playing (and it also made it impossible to
record anything, of course). 

Then I bought $20 worth of copper tape off ebay, and lined the guitar
cavities containing wires, pots and switches with it. The pickups cannot
be shielded, though. Anyway, now I'm hard pressed to detect any PC (or
fluorescent tube) activity through my guitar amp, no matter where I'm
playing. The guitar is a Telecaster with single coil pickups, a 1950s
design infamous for its ability to pick up electromagnetic noise. There
was probably less EMI floating around in the 1950s, so Leo Fender didn't
bother with shielding when he designed the first electric guitar. And
the Fender company never upgraded the design with shielding since. 

Anyway, the point of this anecdote is that shielding for audio frequency
EMI seems to be a really, really easy, inexpensive and effective thing
to do, but despite that, it is not always done. For reasons that elude
me.

JohnSwenson wrote: 
> Since this has little to do with the thread topic I'll shut up now.

Ok, me too.



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Re: [SlimDevices: Audiophiles] Dac not compatable with SBT?

2012-07-04 Thread slimmac

Well that's great news. I'm using a MAC Pro Tower Dual Processor Quad
Core 2.8Ghz for all processing.
Overkill  - yes indeed. 

This maybe a solution. Thanks guys - much appreciated. I will let you
know how it works out.

Mnyb wrote: 
> No .
> 
> You get a higher workload on the server and use more network bandwidth
> .
> 
> But if your server is a PC the transcoding would hardly notice (a NAS
> another story ) good wifi or wired and bandwidth should not ba an issue
> .



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Re: [SlimDevices: Audiophiles] Dac not compatable with SBT?

2012-07-04 Thread Soulkeeper

slimmac wrote: 
> Do you have a link you could forward me with instructions on how to
> achieve this?

Sorry, I don't have any links for you, and I haven't tried to do that
myself, but if you search this forum for server side transcoding, sox,
server side upsampling, lms transcoding, lms upsampling, sox transcoding
etc., I'm sure you'll find loads of info.



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Re: [SlimDevices: Audiophiles] Dac not compatable with SBT?

2012-07-04 Thread Mnyb

slimmac wrote: 
> I have not. Do you have a link you could forward me with instructions on
> how to achieve this?
> 
> Does this affect the sound quality whatsoever?

No .

You get a higher workload on the server and use more network bandwidth .

But if your server is a PC the transcoding would hardly notice (a NAS
another story ) good wifi or wired and bandwidth should not ba an issue
.



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Re: [SlimDevices: Audiophiles] Dac not compatable with SBT?

2012-07-04 Thread slimmac

I have not. Do you have a link you could forward me with instructions on
how to achieve this?

Does this affect the sound quality whatsoever?

Soulkeeper wrote: 
> Have you considered going around the problem by configuring LMS to
> upsample all 44.1 kHz material to 88.2 kHz, and all 48 kHz material to
> 96 kHz?



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Re: [SlimDevices: Audiophiles] Dac not compatable with SBT?

2012-07-04 Thread Soulkeeper

Have you considered going around the problem by configuring LMS to
upsample all 44.1 kHz material to 88.2 kHz, and all 48 kHz material to
96 kHz?



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Re: [SlimDevices: Audiophiles] Dac not compatable with SBT?

2012-07-04 Thread slimmac

Thanks again for all your input - its much appreciated.
In Rotel's defence, they sent me via FTP server, hi-res test files to
test how the DAC handles them.
I played them in 2 ways:

1) VIA a USB stick connected to an Oppo BDP-95, which was connected to
the Rotel using the same digital cable. 
The files played perfectly.

2) VIA the same USB stick connected to the SBT, connected to the Rotel
using the same digital cable.
The DAC would "stick" on the 88KHz to 44.1KHz sequence. Go figure! 

SoI can't entirely attribute this issue to the Rotel. Rather, it
appears to be a relationship that's sour :-)



Mnyb wrote: 
> Possibly as all HT gear I know implement the sub filter in the digital
> domain so the analog inputs goes trough AD conversion ,when you use the
> sub , you usually can't use the direct mode or most mfg these days are
> very vague on what's really going on in thier product ,very few have
> actual analog pass thru , moder HT gear is best feed an digital signal
> .
> So when using the sub you get the signal feed trough DA-AD-DA that is
> maybe not ideal re soundqality .
> 
> I think the fault is at the Rotel they just trying to pass the blame,
> you see this forum people have it working with countless kinds of DAC's
> and HT amplifiers ?



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