Subject: Re: [linux-audio-user] Beginner sampler questions
From: Jesse Chappell (jesse_AT_essej.net)
Date: Mon Mar 29 2004 - 18:47:41 EEST
Pete Bessman wrote on Sat, 27-Mar-2004:
> I've been thinking about the potential for this to happen. What other
> instruments are you using with RoseGarden, and what buffersize are you
> using for JACK? Specimen is designed to play jitter-free with large
> buffers, but a consequence of this is that all notes will lag behind
> by exactly the length of the buffer. Apps which play notes as soon as
> they get them won't appear to lag at all, but once you start using
> larger buffer sizes (like 2048) things will start to sound funny.
Jitter-free is absolutely important over all else. If you use
a large jack period, then there is no way around the latency when
triggered from realtime sequencer input. However, the upcoming
midi-over-jack could solve some of these issues when the sequencer
supports it.
> > But I haven't really cared about that so much, since once I liked
> > the instrument sounds, my thought was to record the instruments
> > individually into tracks in Ardour, and then adjust timing and
> > relative gain there.
>
> Eh... this is a nuisance, the necessity of which I'd like to
> eliminate.
No reason to eliminate this, Ardour is capable of adjusting the
recorded region offsets automatically based on the jack input
port latencies (which include clients like specimen).
jlc
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