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