[Ardour-Users] Ardour with multiple cheap (USB) audio interfaces.

Rodrigo Severo rodrigo at fabricadeideias.com
Sat Jan 11 14:42:39 PST 2014

On Fri, Jan 10, 2014 at 11:57 PM, Robin Gareus <robin at gareus.org> wrote:

> On 01/11/2014 02:25 AM, ChaosEsque Team wrote:
> > and I'd appreciate some guidance because I think
> > this is really important group of people: folks that can't afford
> > multichannel interfaces and lots of amps, the sort of people who
> > might really be attracted to a tool like Ardour.
> Fair point. As explained on the linked page, it is not ideal to use
> multiple un-synced soundcards, but it can be good enough for many cases.
> The easiest way to do so on GNU/Linux is to to use alsa_in/out:
> First start jackd as usual with one soundcard - and then add the others
> as needed.  This is as easy as opening a terminal and running
>    alsa_in -d hw:1
> This adds the 1st soundcard (hw:1) inputs to an already running jackd.

Take a look at Zita-ajbridge:
an alternative for alsa_in and alsa_out.

It says that "Functionally these are equivalent to the alsa_in and alsa_out
clients that come with Jack, but they provide much better audio quality.
The resampling ratio will typically be stable within 1 PPM and change only
very smoothly. Delay will be stable as well even under worse case
conditions, e.g. the Jack client running near the end of the cycle."

I never used it but if it leaves up to it's promises it must be a great

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