Re: [Qtractor-devel] System lock-up on MIDI clocking

[Ralf M. <ral...@al...>]

Hi Oliver,

Qtractor as sync master and a YAMAHA RX21 as sync slave (both tested,
RX21 CLOCK: INTERNAL and CLOCK: MIDI) seems to work correctly.

[rocketmouse@archlinux ~]$ uname -a
Linux archlinux 3.10.47-rt50-1-rt-lts #1 SMP PREEMPT RT
Thu Jul 17 23:36:36 CEST 2014 x86_64 GNU/Linux
[rocketmouse@archlinux ~]$ qtractor -v
Qt: 4.8.6
Qtractor: 0.6.2
[rocketmouse@archlinux ~]$ jackd -dalsa -dhw:0 -r48000 -p256 -n2
jackdmp 1.9.9.5

Readable client
  129:Qtractor, 1:Control
is connected to writeable client
  16:RME AIO_579bcc, 0:HDSPMx579bcc MIDI 1
connected to MIDI in of a YAMAHA RX21.

Qtractor View > Options... (F12) > MIDI tab

File format: SMF Format 1
Quantize: None
Queue timer (resolution): HR timer (1000000000 Hz)
[ ] Dedicated MIDI player outputs
MMC: Duplex  Device: (Any)    SPP: Duplex  Clock: Output
[x] Dedicated MIDI control input/output
[ ] Enable MIDI metronome

However, I only made a very quick and short test, without listening, I
just watched the sync. Sync seems to be ok, it at least is visible ok,
perhaps not when listening, anyway, the computer stays responsive, no
freeze, or other issues.

The only issue seems to be, that the RX21 only follow song positions,
when playing or manually moving the play head, but in loop play it's
ignored.

https://archive.org/stream/synthmanual-yamaha-rx-21-owners-manual/yamaharx-21ownersmanual#page/n57/mode/2up

Regards,
Ralf