[LAU] M-Audio FastTrack Pro, all four outputs in jack

[Patrick Shirkey]

On 10/09/2009 07:06 PM, Dan S wrote:
> 2009/10/7 Paul Davis<paul at linuxaudiosystems.com>:
>    
>> On Wed, Oct 7, 2009 at 9:58 AM, Dan S<danstowell+lxau at gmail.com>  wrote:
>>
>>      
>>> This thread<http://www.mail-archive.com/alsa-user@lists.sourceforge.net/msg23839.html>
>>> suggests that using .asoundrc to aggregate the two devices into one
>>> virtual device should work, but for me it simply doesn't, the virtual
>>> device never shows up in qjackctl and even jackd from commandline
>>> can't connect to it by name.
>>>        
>> can aplay? if not, start there.
>>      
> Forgive the ignorance but what sort of string does aplay's "-d" option
> need? I tried the device names that qjackctl shows me (namely default,
> hw:0, hw:1,0, hw:1) and only "default" worked (I expected hw:0 also to
> work since that's the same as default, i.e. the internal card). All
> other options return immediately with error and don't play.
>
>    



aplay -f cd -d hw:1,0 xxxx.wav


That should record a cd quality wav file on the fastrack pro i/o 1/2





> Here's what aplay -l gives:
>
> **** List of PLAYBACK Hardware Devices ****
> card 0: Intel [HDA Intel], device 0: ALC861VD Analog [ALC861VD Analog]
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
> card 1: Pro [FastTrack Pro], device 0: USB Audio [USB Audio]
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
> card 1: Pro [FastTrack Pro], device 1: USB Audio [USB Audio #1]
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
>
> I tried various device names like "Intel", "HDA Intel", "Pro",
> "FastTrack Pro", "USB Audio" and they all give the answer "unknown
> PCM". Device names "hw" "hw:0" "hw:1" "hw:1,0" give this:
>
> Playing WAVE 'a11wlk01.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Mono
> aplay: set_params:909: Channels count non available
>
>
> If I use the device name "multi" (the name I specified for the virtual
> device) I get
>
> ALSA lib pcm_multi.c:1169:(_snd_pcm_multi_open) Invalid or missing
> schannel for channel 3
> aplay: main:550: audio open error: Invalid argument
>
> Grateful for any suggestions -
>
> Thanks
> Dan
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