[pulseaudio-discuss] 'Failed to find a working profile' for firewire sound devices

[David Henningsson]

On 01/26/2014 04:05 PM, Takashi Sakamoto wrote:
> David,
> 
>> Hmm, Alexander is probably correct. Then maybe it would be better to
>> fill with aux channels instead, e g, for 10 channels, change:
>>
>>
>> channel-map =
>> front-left,front-right,rear-left,rear-right,front-center,lfe,side-left,side-right,aux0,aux1
>>
>>
>> to:
>>
>> channel-map =
>> front-left,front-right,aux0,aux1,aux2,aux3,aux4,aux5,aux6,aux7
> 
> Yes. It works what I expected. Any PCM samples are not delivered to the
> 'aux*' channels.
> 
> 
> But considering about Alexander's comment, it may be better that PCM
> samples are delivered to all of channels. Are there any differences
> between profiles with 'aux' and without 'aux'?

As for CPU usage, I would guess the difference would not be significant,
but if there is any, it would be to the advantage of using 'aux'.


-- 
David Henningsson, Canonical Ltd.
https://launchpad.net/~diwic