Thanks Clemens for your quick response!
Am 06.10.2010 16:38, schrieb Clemens Ladisch:
>>
>> Playback:
>> Status: Running
>> Interface = 1
>> Altset = 1
>> URBs = 3 [ 57 57 57 ]
>> Packet Size = 312
>> Momentary freq = 48000 Hz (0x6.0000)
>> Interface 1
>> Altset 1
>> Format: S24_3LE
>> Channels: 8
>> Endpoint: 1 OUT (ADAPTIVE)
>> Rates: 44100, 48000, 88200, 96000
>> Data packet interval: 125 us
>>
>> Does it tell us anything?
>>
> That this device does not use frequency feedback.
>
> What happens when you are recording something and then try to play
> something else with a different sample rate? (use arecord/aplay with
> "-D hw:X")
>
>
When I start recording at 44.1 kHz while playing a wav at 48 kHz the
playback gets very distorted, sounds like lots of missing samples. I get
this from stream0:
M-Audio Fast Track Ultra 8R at usb-0000:00:1a.7-4, high speed : USB Audio
Playback:
Status: Running
Interface = 1
Altset = 1
URBs = 2 [ 5 6 ]
Packet Size = 312
Momentary freq = 48000 Hz (0x6.0000)
Interface 1
Altset 1
Format: S24_3LE
Channels: 8
Endpoint: 1 OUT (ADAPTIVE)
Rates: 44100, 48000, 88200, 96000
Data packet interval: 125 us
Capture:
Status: Running
Interface = 2
Altset = 1
URBs = 8 [ 8 8 8 8 8 8 8 8 ]
Packet Size = 312
Momentary freq = 44100 Hz (0x5.8333)
Interface 2
Altset 1
Format: S24_3LE
Channels: 8
Endpoint: 1 IN (ASYNC)
Rates: 44100, 48000, 88200, 96000
Data packet interval: 125 us
The sound stays corrupted until I record at 48 kHz again. Then
everything sounds as before, i.e. with thos noticable clicks we're
trying to sort out.
Do you need more infos?
Regards,
Felix
_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxx
http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
