Open-source USB interface: Audio Widget - Page 197

linuxworks · 8th December 2012, 05:22 PM

I just heard metal noise on an 88k file while skipping forward to the start of another 88k file. have not heard the noise in normal 44k sources, though. this is with mpd (the only thing I use these days) on linux using the latest-1 version.

borges · 8th December 2012, 05:45 PM

Are you able to replicate the result with last-1 ('6) and last ('7) firmware?

Børge

linuxworks · 8th December 2012, 05:55 PM

I have not tried the 07 since it would not be optimal for linux. I was hoping the 06 would be my last update for a while

borges · 8th December 2012, 05:58 PM

Fair enough! I'm still trying to understand more and more about the USB Audio protocol, and at the same time make the firmware as stable as possible on all platforms.

Børge

dhbiker · 06:08 PM

88 and 96 ouch on 07 FW with linux (metallic noise)
06 FW seems to be the closest one yet for linux (in my case)

borges · 8th December 2012, 06:29 PM

Yes, the features in '06 need to be there for Linux. I'm curious whether or not what's good for Linux is bad for Mac.

Thanks for doing the test.

Børge

oneoclock · 9th December 2012, 09:19 PM

Quote:

Originally Posted by borges

I assume that's with the '07 firmware? When you say BAD, what exactly is happening?

Børge

Yes, 07 firmware: awx_20121207_Mac_8896.elf

Bad is two segudos of music, noise and then silence.

zumbik · 01:48 AM

Hi, the last days I stayed in the frozen forest. Without computer and network.

Quote:

Originally Posted by borges

Zumbik, just to check: did you change f2k to DirectSound playback for UAC1? Nikolay's ASIO driver doesn't support UAC1 on Windows. This is the first report of any kind of UAC1 failing on Windows, so I'm curious. Also, could you explain what goes wrong on UAC2/192/Linux?
Børge

So, I have a clean install of win7 64bit, fresh install of drivers AWSetup_20121004.exe and AB1.2 in UAC1 mode.

Foobar2k preferences for UAC1:

and widgetcontrol

I tested a lot of different flac files and always i have the same symptom: slight interruptions and sometimes metalic sounds.
This is my first UAC1 test from September 2012on win7. First time I see such a problem too.

In the case of 192 on linux:

EDIT: (192 in UAC2on linux)

I tested 30 files, all of them 192.
80 percent of them working badly. How, You must see this movie.
On windows7 in UAC2 mode all this files working corectly.
Tested with pulseaudio and without, always the same problem like on movie.

qusp · 11th December 2012, 01:45 AM

UAC1 does not have the bandwidth for 192kHz, max is 96kHz

zumbik · 11th December 2012, 01:47 AM

Quote:

Originally Posted by qusp

UAC1 does not have the bandwidth for 192kHz, max is 96kHz

Sorry, 192 i UAC2 mode.

Zumbik

8th December 2012, 05:22 PM	#1961
linuxworks diyAudio Member Join Date: Jul 2008 Location: santa clara, CA	I just heard metal noise on an 88k file while skipping forward to the start of another 88k file. have not heard the noise in normal 44k sources, though. this is with mpd (the only thing I use these days) on linux using the latest-1 version. __________________ My Photostream:http://www.flickr.com/photos/linux-works/

8th December 2012, 05:45 PM	#1962
borges diyAudio Member Join Date: Dec 2003 Location: Oslo, Norway	Are you able to replicate the result with last-1 ('6) and last ('7) firmware? Børge __________________ === AB-1.2 and USB-I2S Module === Audio Widget readme ===

8th December 2012, 05:55 PM	#1963
linuxworks diyAudio Member Join Date: Jul 2008 Location: santa clara, CA	I have not tried the 07 since it would not be optimal for linux. I was hoping the 06 would be my last update for a while __________________ My Photostream:http://www.flickr.com/photos/linux-works/

8th December 2012, 05:58 PM	#1964
borges diyAudio Member Join Date: Dec 2003 Location: Oslo, Norway	Fair enough! I'm still trying to understand more and more about the USB Audio protocol, and at the same time make the firmware as stable as possible on all platforms. Børge __________________ === AB-1.2 and USB-I2S Module === Audio Widget readme ===

8th December 2012, 06:06 PM	#1965
dhbiker diyAudio Member Join Date: Feb 2012 Location: Maribor/Ormož, Slovenia	88 and 96 ouch on 07 FW with linux (metallic noise) 06 FW seems to be the closest one yet for linux (in my case) Last edited by dhbiker; 8th December 2012 at 06:08 PM.


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8th December 2012, 06:29 PM	#1966
borges diyAudio Member Join Date: Dec 2003 Location: Oslo, Norway	Yes, the features in '06 need to be there for Linux. I'm curious whether or not what's good for Linux is bad for Mac. Thanks for doing the test. Børge __________________ === AB-1.2 and USB-I2S Module === Audio Widget readme ===

11th December 2012, 01:45 AM	#1969
qusp is choosing a less facetious title... diyAudio Member Join Date: Oct 2009 Location: Brisbane, Australia	UAC1 does not have the bandwidth for 192kHz, max is 96kHz

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