Re: [Jack-Devel] is this latency coming from ALSA, jack, or ardour?

On Fri, April 15, 2011 7:52 am, Paul Davis wrote:
> To get a useful value, multiple frames/period by the periods/buffer
> value. Subtract this from the number shown by jack_iodelay. Divide by
> two.
> Then give this value to the JACK backend with the -I and -O flags,
> which specify "system input latency" and "system output latency".

Not sure I'm following here.
This is what I have at the moment:
Using qjackctl to start jack, the setup dialog shows 1024 frames/period, 3
periods/buffer.

Multiplied those together to get 3072 frames/buffer.

Ran jack_iodelay and it printed "1024.000 frames     23.220 ms"
Subtracting 3072 from 1024 gives negative latency, and somehow passing a
negative number to jack in the "Extra" latency field doesn't seem right.

-- 
Chris Caudle

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