[Ardour-Users] some issues with Ardour3 (jack master time)

Jörn Nettingsmeier nettings at stackingdwarves.net
Wed Jan 26 03:53:18 PST 2011

On 01/25/2011 03:09 PM, David Monniaux wrote:
> I must use Jackd2 since Qsynth crashes on Jackd1 on my machine (Ubuntu
> 10.10).

have you tried the "no-zombify" switch? that's one thing which has 
changed from jack1 to jack2 iiuc: jack2 doesn't kick lame clients by 
default. qsynth might sometimes miss its processing deadline (maybe only 
when setting things up, so that its normal operations are not affected). 
jack1 will kill it unless you tell it not to, jack2 won't.

the jack1 option is "-Z", iirc.

> So I've decided to try Ardour3, compiled from svn. Everything works
> ok... except that tempo changes don't seem to get transmitted through
> Jack to e.g. hydrogen, something that worked well in Ardour2.
> Is there somewhere I should click to enable tempo changes through Jack
> transport?
> Also, it's a bit annoying that Ardour3 enforces using Jack for Midi -
> many applications use Alsa. Ok, there's the Jack<->Alsa bridge, but...

i think using jack for everything is a lot more elegant from a technical 
and a2jmidid works perfectly for me. if you use qjackctl, you can use 
the "execute script after startup" option to auto-start it, and then 
it's Hassle-Free(tm).

Jörn Nettingsmeier
Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487

Meister für Veranstaltungstechnik (Bühne/Studio), Elektrofachkraft
Audio and event engineer - Ambisonic surround recordings


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