[Ardour-Dev] No delay compensation for insert

Thomas Vecchione seablaede at gmail.com
Thu Jun 23 20:20:30 PDT 2011

Ok going to take very quick stabs at these but keep in mind I haven't
had sleep in about 40 hours or so now...

On Thu, Jun 23, 2011 at 7:47 PM, Reuben Martin <reuben.m at gmail.com> wrote:
> I ran into an issue today which, in the process of trying to work around it, turned up more issues... (Isn't that always the way it goes
> ;-)
> I have an insert in ardour that is causing a fair amount of delay, and the insert dialog seems to be able to measure the delay easily
> enough, but it is still off. I tried to insert the "artificial latency" plugin to work around it and found that it does not work. Which in turn
> makes me wonder, does ardour use that plugin to deal with delay compensation or does it roll its own delay internally? The LV2
> version of the same plugin is no better BTW.

Are you by chance inserting the plugin on a bus instead of a track?
Busses do not have any delay compensation.

> So then I tried to export the output from a sub-mix bus so that I could pull it back in and align it manually. But this is a rather long
> project (about 90min) and the export didn't complain or throw any errors, but after pulling the resulting wav file back in, it turns out
> it only contains the first 20 something minuites (or at exactly 5G for a stereo, 96k, 32bit float wav file) of the session.

WAV32 has a file size limitation, though I am surprised you got to 5G
in that case.  This is a known issue in the file format as it only
uses a 32 bit signed INT for addressing purposes in it's header, and
as a result can only store so large of a number.


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