[ardour-users] latency compensation in ardour

[Paul Davis]

On Fri, 2006-09-29 at 13:58 +0200, Orm Finnendahl wrote:
> Hi all,
> 
> we're trying to compensate for latency, recording the playback tape
> for steve reich's new yourk counterpoint. It basically consists of 10
> tracks of clarinet played by the same player. The clarinet gets a
> prerecorded clicktrack from track 1 (rather than ardour's built-in)
> and the recorded sound should align with the click. Ardour seems to
> compensate perfectly well for the latency introduced by the soundcard,
> but we get additional latency from the dac/adc of the mixing console
> (Yamaha O3d) of ca. 20 ms (of which half of it have to get
> compensated). It would be very nice if we could be able to set a
> prerecording delay for each track as latency compensation (using jack
> doesn't work as we are using a bigger blocksize in jack than in the
> Mixer).

sh% jackd -d alsa --help
     [ ... ]

        -I, --input-latency     Extra input latency (frames) (default:
0)
        -O, --output-latency    Extra output latency (frames) (default:
0)