Re: Problems with USB audio

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Sebastian Tennant wrote:
> Quoth Jonatan Liljedahl <lijon@xxxxxxxxxxxx>:
>> Perhaps something is broken with your alsaplayer installation? Have you
>> tried using aplayer instead?
>> -- 
>> /Jonatan         [ http://kymatica.com ]
> 
>  $ aplay -D hw:1,0 $dt/Laptop\ tunes/*.ogg
>  Playing raw data '/home/sebyte/Desktop/Laptop tunes/Armageddon Time.ogg' : Unsigned 8 bit, Rate 8000 Hz, Mono
>  aplay: set_params:900: Sample format non available
> 
>  $ aplay -D plughw:1,0 $dt/Laptop\ tunes/*.ogg
>  Playing raw data '/home/sebyte/Desktop/Laptop tunes/Armageddon Time.ogg' : Unsigned 8 bit, Rate 8000 Hz, Mono

aplay can't play ogg files, try with a WAV instead...

>  aplay: set_params:961: Unable to install hw params:
>  ACCESS:  RW_INTERLEAVED
>  FORMAT:  U8
>  SUBFORMAT:  STD
>  SAMPLE_BITS: 8
>  FRAME_BITS: 8
>  CHANNELS: 1
>  RATE: 8000
>  PERIOD_TIME: (125011 125012)
>  PERIOD_SIZE: [1000 1000]
>  PERIOD_BYTES: (1000 1001)
>  PERIODS: (3 4)
>  BUFFER_TIME: 500000
>  BUFFER_SIZE: 4000
>  BUFFER_BYTES: 4000
>  TICK_TIME: 4000
>
> "Unable to install hw params"... could it be a permissions issue?

But I think I know what the problem is now, I had similar problems with
usb-audio on kernel 2.6.20 with ALSA 1.0.14rc1. Do you also get "cannot
submit datapipe for urb 1, error -28: not enough bandwidth" in your
logs? (check with dmesg).

I upgraded to 2.6.22.7 with ALSA 1.0.14 and then everything worked
perfectly.

-- 
/Jonatan         [ http://kymatica.com ]

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