Re: [LAU] perhaps why some of us have more trouble w/ pulseaudio than others (ICE1712/M-audio delta problem w/ pulseaudio)

On Thu, 2010-05-13 at 06:56 +0000, Frank Kober wrote:
> PA or not, this is somewhat getting back to the original question: how
> can we get a reliable index assignment on startup with several
> soundcards.
>
> I'm not using PA, but mostly because I noticed that it uses (much)
> more CPU with many desktop applications, due to resampling I was told.
> I have an internal HDA, an nvidia graphics chip, a nanokontrol and a
> UA-25.
> The latter both use snd-usb, though one obviously cannot produce
> sound.
> The nvidia chip seems to expose an audio device (?) handled by a
> snd-hda-intel module, as does the snd-hda-intel soundchip. Although
> the first one cannot produce sound.
> So I would like the following order to be maintained to have desktop
> applications adress a working soundcard and to have the UA-25 always
> at the same index for JACK.
>
> 0 [Intel ]: HDA-Intel - HDA Intel
> HDA Intel at 0xfbff8000 irq 32
> 1 [NVidia ]: HDA-Intel - HDA NVidia
> HDA NVidia at 0xfde7c000 irq 16
> 2 [UA25 ]: USB-Audio - UA-25
> EDIROL UA-25 at usb-0000:00:1d.0-1, full speed
> 3 [nanoKONTROL ]: USB-Audio - nanoKONTROL
> KORG INC. nanoKONTROL at usb-0000:00:1d.0-2,
> full speed
>

But why is index important to you? hw:Intel, hw:NVidia, hw:UA25 and
hw:nanoKONTROL are the predictable device names ALSA gives you.

A basic .asoundrc would be something like below, although you'd probably
want dmix too.

pcm.!default {
        type hw
        card NVidia
}

-- 
Peter

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