New subject: FluidSynth fails to sintetize more 85% events generated by Drum machine ALESIS D4.

11 Sep 2009

I'm running fluidsynth/qsynth in a 64studio distribution.

I'm generating MIDI events from a Drum Machine Alesis D4 directly to
fluidsynth through a MIDI In port and fluidsynth fails to sintetize more
than 85% of the hits on the PAD.

Facts :

1- Fluidsynth is receiving MIDI events from every single hit on the PADs.
(checked with amidi & fluidsynth -v)

2- Fluidsynth is able to reproduce every single Midi event if it's generated
by a Midi keyboard or Virtual Keyboard.

3.- If I connect the Alesis D4 module to a Hydrogen dumr machine , it
reproduce and sintetize every single stroke without problem.

4.- After do some debugging I have been able to see the following :
MIDI KEYBOARD EVENTS : (This works pretty well)

fluidsynth: noteon    0    65    66    00754    1397.075    1397.105
0.000    0
fluidsynth: noteon    0    65    66    00754    1397.079    1397.105
0.000    1
fluidsynth: noteon    0    65    66    00755    1397.081    1397.105
0.000    2
fluidsynth: noteon    0    65    66    00755    1397.081    1397.105
0.000    3
fluidsynth: warning: ALSA sequencer buffer overrun, lost events
fluidsynth: noteoff    0    65    0    00755    1397.232    1397.262
0.151    3
fluidsynth: noteoff    0    65    0    00755    1397.235    1397.262
0.154    3

MIDI DRUM SET ALESIS D4 EVENTS : (Fails to synthetise 75% of the hits)

fluidsynth: noteon    0    65    127    00776    1480.951    1480.981
0.000    0
fluidsynth: noteon    0    65    127    00776    1480.951    1480.981
0.000    1
fluidsynth: noteon    0    65    127    00777    1480.951    1480.981
0.000    2
fluidsynth: noteon    0    65    127    00777    1480.951    1480.981
0.000    3
fluidsynth: warning: ALSA sequencer buffer overrun, lost events
fluidsynth: noteoff    0    65    0    00777    1480.951    1480.982
0.000    4
fluidsynth: noteoff    0    65    0    00777    1480.951    1480.982
0.000    4
fluidsynth: warning: ALSA sequencer buffer overrun, lost events

MANUAL GENERATED EVENTS : (100% Accuracy response time)

...
  noteon 0 65 127 fluidsynth: noteon    0    65   
127    00779    1562.500    1562.526
0.000    2
fluidsynth: noteon    0    65    127    00779    1562.500    1562.526
0.000    3
...
  noteon 0 65 127 fluidsynth: noteon    0    65   
127    00780    1563.597    1563.626
0.000    2
fluidsynth: noteon    0    65    127    00780    1563.597    1563.626
0.000    3
...
  noteon 0 65 127 fluidsynth: noteon    0    65   
127    00781    1564.735    1564.767
0.000    2
fluidsynth: noteon    0    65    127    00781    1564.735    1564.767
0.000    3

Please , we having a Gig in 2 weeks and I need to solve this ! THANKS ALL WE
LOVE YOU !

Jedi Storm.-