[ardour-users] Exporting with Hardware Inserts/Sends

[Phil Frost]

On Sun, Jan 22, 2006 at 06:16:37PM -0800, Mark Knecht wrote:
> Hi Andy,
>    I don't think you're going to have many problems at that latency,
> and using your ears is a good thing, but you do not have to if you
> don't want to. A simple solution to get things dead on is to first get
> everything sounding good. Get your plugins set, automation set, etc.,
> and then do one extra thing. Get yourself a small wave file with
> nothing but a bit of a square wave in it and place this file at the
> end of the track going outside. At this point bounce the track in
> question to a new audio track and then compare the positions of the
> two square waves. Bingo, you know how far off everything is. If you
> decide you really want things dead on, and sometimes you will, then
> bounce those as above, mute the old ones, and use the new ones but
> shift them by the amount you measured above.
> 
> Hope this helps,
> Mark

You might also find Jdelay useful:
<http://users.skynet.be/solaris/linuxaudio/>. It's not related to
ardour, but if you put a jumper from an out to an in on your card and
run jdelay, you can measure your latency very accurately.