28 Oct
2009
28 Oct
'09
6:53 a.m.
On Wed, 28 Oct 2009 01:57:09 -0700 (PDT), Oliver Jaun <olijaun(a)yahoo.com wrote:
again, how much is the delay?
Hi
I'm trying to switch from Mac to Linux. I'm using
UbuntuStudio. I'm happy with Ardour for audio recording and Hydrogen
for Drums. I managed to synchronize Ardour and Hydrogen without any
problems.
Now I have a drum beat with Hydrogen and a Bass
recorded with Ardour and I would like to record a MIDI Track with
Qtractor along with the drums and the bass. When I do that then MIDI is
recorded, but when I play a note on beat 1 then and I look at it in the
piano roll editor then this note is actually on beat 1.5 (more or
less).
what do you mean exactly with "beat 1.5" ? is it a beat-and-half ? what
tempo (bpm)? how much is that half-beat delay in (mili)seconds? (a
screenshot would be worth a thousand words)
it might seem that your playing is just human and seldom matches the rigor
of the metronome ;)
if what you're after is quantization _while_ recording, please check
View/Options.../MIDI/Capture/Quantize global setting.
however, i would recommend you do all quantization _after_ recording, via
Tools/Quantize... from the midi clip editor menu (aka piano-roll widget).
When I listen to it then it seems to be in sync but of
course this makes
editing in Qtractor useless because everything is displayed delayed.
The same happens with rosegraden so it doesn't seem to be a Qtractor
bug.
I'm using a MidiSport 2x2 Midi-Interface but I
don't think the delay
comes from there because when connect my keyboard directly with e.g.
LinuxSampler then I can play very nicely (short latency)
what it seems might not be precise enough. maybe you can run and compare
to benchmarks with this gem:
http://github.com/koppi/alsa-midi-latency-test
byee
--
rncbc aka Rui Nuno Capela
rncbc(a)rncbc.org