On Wednesday 21 July 2010 03:17:56 Adrian Knoth wrote:
> On Wed, Jul 21, 2010 at 02:24:09AM +0200, rom wrote:
> > I'd like to ask some advice about a small multitrack recorder program i
> > wrote, and have been using for some time. Basically, what it does is to:
> > - simultaneously capture sound from several consumer-grade soundcards.
> > - use libsamplerate to stretch the audio streams, re-syncing them to the
> > one chosen as "master". The stretch ratio is continuously re-calculated
> > to make the overall frame count of the stretched stream match the
> > overall frame count of the master.
> > - write the "corrected" streams plus the "master" stream to parallel
> > .wav files using libsndfile.
>
> You basically reinvented jackd with additional alsa_in and jack_capture
> or whatever recording tool (ardour?) a user intends to use.
>
> Just a quick walk-through:
>
> $ jackd -d alsa -d hw:0 --> fire up jackd on first card
> $ alsa_in -d hw:1 --> add second card
> $ alsa_in -d hw:2 --> add third card a.s.o.
>
> Then, use any jack capture client you want, including jackrec,
> jack_capture and ardour, just to name a few.
This deals with the clock sync issue as is?
>
>
> HTH
drew
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Received on Wed Jul 21 16:15:01 2010
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