How to use Ardour with an external USB sound card?

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jcuenca
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Hi,

I am trying to use Ardour with an external USB mixer (Alesis Multimix4) in Xubuntu.

In the xfce sound settings, I can turn off the internal sound card and use the USB mixer instead as an I/O. This works for all desktop applications. However, Ardour ignores this and continues to use the laptop's built-in sound card.

Any ideas?

Many thanks in advance.

LeatusPenguin
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Joined: 2010-12-16
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Ardour uses Jack and not pulse audio, which Ubuntu and it's derivatives use by default. The settings you are changing are for pulse audio. If you download Jack from the software centre, you can then start it up, select your soundcard from there and then when you load up Ardour, it will work with it. In fact, it should have installed at the same time you downloaded Ardour so look for Jack in the menu. If you start it up, select the setup button and select your interface from the interface drop down menu.

Also, seeing as you're using a Ubuntu derivative, it might be best to install the Ardour bundle from the website here. Ubuntu has a history of messing up Ardour builds. You'll have less trouble if you install the package from the website.

LeatusPenguin
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I should note that I meant qjackctl. It is a front end for Jack.

stratojaune
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As said before, you will have better luck to start Ardour with Jack. Actually, you have to ! So, erase completely Pulseaudio before install Jackd (there's howto in Ubuntu forums, and in Linux musicians site)

Good luck !

dbra
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@stratojaune: Don't confuse the beginner! You don't have to erase pulseaudio. He just haven't configured Jack to use his external audio-interface.

Smurf
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Agree, no need to remove anything! Just switch what is used.....

stratojaune
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Well... maybe you're right dbra & smurf, but here nothing is possible if pulse is inside the machine...