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y1 gamma-1 DAC - Page 6

post #76 of 1535
11/19/08 at 9:33am
I believe the PCM2707 core works on any OS (including Linux).

USB is as bit perfect as the OS is. The kernel mixer in XP supposedly up-samples 44.1 to 48kHz. You can bypass this by using the ASIO drivers and foobar2000.

No idea on the jitter.

The USB lite version sounds very nice (after a 3 hour listening session last nite)
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post #77 of 1535
11/19/08 at 9:52am
Thanks for the response.

Is Linux one of the bit perfect OS? I tried the Meier Move before on both OS/X (Leopard) and Linux (Ubuntu back then), and the sounds were much better coming out of OSX.

I ended up selling it as I was trying to use it on my work (Linux). I am hoping to get some other options out there that would be suitable in linux environment.

Is it just my perception or does Linux truly doesn't support the bit perfect? Or was I configured it wrong..



Quote:
Originally Posted by cobaltmute View Post
I believe the PCM2707 core works on any OS (including Linux).

USB is as bit perfect as the OS is. The kernel mixer in XP supposedly up-samples 44.1 to 48kHz. You can bypass this by using the ASIO drivers and foobar2000.

No idea on the jitter.

The USB lite version sounds very nice (after a 3 hour listening session last nite)
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post #78 of 1535
11/19/08 at 1:39pm
Others have said Linux is bit perfect. I haven't touched it for desktop use in quite a while as for me it is a server product.
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post #79 of 1535
11/19/08 at 1:42pm
I have a stupid question. Is this a HP amp/dac or just a dac?
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post #80 of 1535
11/19/08 at 1:43pm
Quote:
Originally Posted by olblueyez View Post
I have a stupid question. Is this a HP amp/dac or just a dac?
Just a DAC and or a converter from what I read so far.
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post #81 of 1535
11/19/08 at 1:44pm
Quote:
Originally Posted by cobaltmute View Post
Others have said Linux is bit perfect. I haven't touched it for desktop use in quite a while as for me it is a server product.
That's what I thought too, but my hearing tells me otherwise.. I don't know why..

Do you have any link or reference to your findings?
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post #82 of 1535
11/19/08 at 2:09pm
A lot of the questions folks are asking about the Y1 project itself are covered in great detail on the first page of the Headwize site for this project, which includes schematics, renderings, BOMs, a thorough description of the circuit and its options, etc.:

HeadWize: DIY Workshop > γ1: Full-featured modular miniature DAC
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post #83 of 1535
11/19/08 at 2:39pm
Quote:
Originally Posted by tosehee View Post
That's what I thought too, but my hearing tells me otherwise.. I don't know why..

Do you have any link or reference to your findings?
The Linux audio subsystems can all be configured in a bit-perfect fashion, but many distributions will start a mixing server akin to kmixer to allow multiple streams to be mixed in software. This will obviously break that. Make sure nothing like esd, PulseAudio etc. is running and delete any .asoundrc and you should get bit perfect output.
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post #84 of 1535
11/19/08 at 2:41pm
Quote:
Originally Posted by error401 View Post
The Linux audio subsystems can all be configured in a bit-perfect fashion, but many distributions will start a mixing server akin to kmixer to allow multiple streams to be mixed in software. This will obviously break that. Make sure nothing like esd, PulseAudio etc. is running and delete any .asoundrc and you should get bit perfect output.
Ahh..

That could be it..!! Thanks for the info. Now, I have something to look into.

Thanks again.
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post #85 of 1535
11/25/08 at 9:29am
γ1 production boards have been ordered. ETA about 3 weeks.



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post #86 of 1535
11/25/08 at 9:52am
Quote:
Originally Posted by amb View Post
γ1 production boards have been ordered. ETA about 3 weeks.
Not sure if it's been covered at the headwize thread (my apologies if so ), but..... do you plan to start a group buy for this project? are you going to offer some kind of kit?

Thanks!
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post #87 of 1535
11/25/08 at 9:58am
I'm happy to report that the y1 sounds quite good.



I currently have it at work feeding my Millett Starving Student Amp.
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post #88 of 1535
11/25/08 at 9:59am
Not a group buy. I'll distribute this board set and some related parts just like how I do it for all my other current projects. The first post in the headwize thread has all the details.
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post #89 of 1535
11/25/08 at 12:57pm
Quote:
Originally Posted by n_maher View Post
I'm happy to report that the y1 sounds quite good.
Yes, but how good? Has anyone compared it to other DACs?
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post #90 of 1535
11/25/08 at 1:31pm
Quote:
Originally Posted by NelsonVandal View Post
Yes, but how good?
Extensive RMAA results have been provided in the developmental thread at the other forum.


HeadWize: View Post [DIY Workshop » γ1: Full-featured modular miniature DAC]

We invite you to draw your own conclusions.
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