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From: adelias <adelias@freemail.gr>
Cc: alsa-devel@alsa-project.org
Subject: Re: usbaudio: Support for USB audio v2.0 devices
Date: Tue, 27 Apr 2010 16:23:48 +0300	[thread overview]
Message-ID: <4BD6E564.5050100@freemail.gr> (raw)
In-Reply-To: <20100302183542.GU28972@buzzloop.caiaq.de>

On 2/3/2010 8:35 μμ, Daniel Mack wrote:
> On Tue, Mar 02, 2010 at 11:13:04AM +0200, adelias wrote:
>> Thanks to all involved for working on usb audio v2.
>>
>> Last night I installed the 20100226 snapshot. I did a little testing
>> with my XMOS board using toslink out into may DAC. I tried various files
>> ranging 16bit/44110kHz-24bit/192000kHz. The 44110 files had quite a bit
>> of static, the higher bitrate files were better. As you stated the
>> sampling rate is not correct and be verified by looking at the flashing
>> LEDs on the XMOS board. They should flash faster as sampling rate
>> increase. In this case no change was observed.
>
> Yes - this is all do be done. The sample rate setting is done with a
> different type of class request, which also addresses the interface now,
> unlike v1 devices which send that to the endpoint. But that's just one
> out of many differences that need to be addressed, and it's still a long
> way to go. I'm on it :)
>
> Daniel

I upgraded alsa to 1.0.23. The XMOS device is working great with the 
exception of some mild clicks here and there. Is this a known issue or
might it be a problem with my specific configuration?

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  reply	other threads:[~2010-04-27 13:26 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-22 16:28 usbaudio: Support for USB audio v2.0 devices Daniel Mack
2010-02-22 16:28 ` [PATCH 1/4] ALSA: usbaudio: parse USB descriptors with structs Daniel Mack
2010-02-22 16:28 ` [PATCH 2/4] ALSA: usbaudio: introduce new types for audio class v2 Daniel Mack
2010-02-22 16:28 ` [PATCH 3/4] ALSA: usbaudio: implement basic set of class v2.0 parser Daniel Mack
2010-02-22 16:28 ` [PATCH 4/4] ALSA: usbmixer: bail out early when parsing audio class v2 descriptors Daniel Mack
2010-02-22 17:40 ` usbaudio: Support for USB audio v2.0 devices Clemens Ladisch
2010-02-22 17:50   ` Daniel Mack
2010-03-02  9:13 ` adelias
2010-03-02 18:35   ` Daniel Mack
2010-04-27 13:23     ` adelias [this message]
2010-04-27 13:31       ` The Source
2010-04-27 14:07         ` Daniel Mack
2010-04-27 15:29           ` The Source
2010-04-27 15:43             ` Daniel Mack
2010-04-27 17:27               ` The Source
2010-04-27 17:33                 ` Daniel Mack
2010-05-02 16:56                   ` The Source
2010-05-03 20:55                     ` Daniel Mack
2010-05-07 13:19                       ` The Source
2010-05-07 13:22                         ` Daniel Mack
2010-05-07 20:12                         ` Daniel Mack
2010-05-07 21:32                           ` The Source
2010-05-08  1:38                             ` Daniel Mack
2010-05-08  7:26                           ` The Source
2010-05-08  9:19                             ` Daniel Mack
2010-05-08  9:24                             ` [PATCH] ALSA: sound/usb: fix UAC1 regression Daniel Mack
2010-05-08  9:45                               ` Takashi Iwai
2010-04-27 14:06       ` usbaudio: Support for USB audio v2.0 devices Daniel Mack
2010-05-03 12:49         ` adelias
2010-05-04 10:48           ` Daniel Mack
2010-05-18  7:07             ` adelias
2010-05-18  7:40               ` Daniel Mack
2010-05-18  8:32                 ` adelias
2010-05-27 18:21               ` Daniel Mack
  -- strict thread matches above, loose matches on Subject: below --
2010-02-22 22:49 Daniel Mack

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