Subject: Re: [linux-audio-user] Recommendations for audio software needed
From: Chris Cannam (cannam_AT_all-day-breakfast.com)
Date: Fri Jan 09 2004 - 12:36:28 EET
On Friday 09 Jan 2004 10:03 am, Conrad Newton wrote:
> From Chris Cannam on Friday, 2004-01-09 at 09:06:19 +0000:
> > Rosegarden does need JACK for audio, yes. If you only want MIDI
> > and notation -- and when I say MIDI I include the ability to
> > drive ALSA soft synths such as Timidity, qsynth or Fluidsynth --
> > then you can build it happily without JACK or run a JACK-built
> > version without running jackd.
>
> I'm not sure that I understand this comment, although it sounds
> quite interesting. Are you saying that I should rebuild the
> program without JACK? Or that via a softsynth I can use the
> program anyway, without running jackd?
Rosegarden uses JACK to record and play audio files, i.e. WAVs. If
you want to include audio clips in a composition or record audio
using Rosegarden then you need to have it compiled with JACK and you
need jackd running.
If you only want to use Rosegarden to edit MIDI and score and to play
to and record from MIDI devices, whether they're soundcard synths,
hardware such as keyboards, or soft-synths, then you don't need to
compile with JACK or run jackd. MIDI and score support in Rosegarden
are stronger than audio support at the moment anyway, so this might
not be too much of a loss. So, for example, you will be able to
import MIDI files, edit them as score, record additional tracks from
a MIDI keyboard, arrange and play the results through a separate
qsynth or a soundcard synth, drive other MIDI applications such as
Hydrogen, etc; you just won't be able to record the results as audio
back into Rosegarden, or add audio samples to your composition.
Note that the soft synths Rosegarden can use (such as fluidsynth,
qsynth or timidity) are separate applications that you have to run
independently and that are then driven from Rosegarden; Rosegarden
does not include or host synths itself. MusE has a possible
advantage in this respect as it does have a fluidsynth implementation
built-in, as well as being able to drive other synths in the same way
as Rosegarden.
(btw, "compiling without JACK" and "compiling with JACK but running
without jackd" are pretty much the same thing, by the way -- either
way you get all the MIDI and score support but no direct audio
support. There are two differences: first, if you compile with JACK
you need to have libjack.so installed for Rosegarden to start; and
second, if you compile without JACK you're eliminating any
possibility of an enterprising user choosing to run jackd as well at
a later time.)
Chris
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