Re: [fluid-dev] sequencer / synth bug ?

[Antoine Schmitt]

Hello,
I've got a strange issue, and I don't know if it comes from the  
sequencer, from the synth, or if it is 'normal'.

Context : it's using the fluidXtra, which I've built on top of  
fluid-1.0.5, on MacOSX and Windows. A user of mine has built a midi  
interpreter on top of this, in Director/lingo, parsing midi files and  
playing them through fluid _but_ not using the fluid midi-file  
playing features (because he changes the midi on the fly). He uses  
the fluid sequencer to schedule the midi events.

The problem: some notes are not played. After some searching, it  
boils down that some drum notes have a duration of 7 ms : the noteoff  
happens 7 ms after the noteon. These notes are not always played  
(heard).

I'm not sure if this is normal (delay smaller than buffersize or  
something), or if this is not normal (it does not see normal).
If it is not normal, where is the problem : in the fluidsynth or in  
the scheduler ?

I've attached the midi file in question. For example, at the  
beginning of the file (after about 1 second), there are 4 notes 70 on  
channel 10. Their duration is 7 ms. With my setup, sometimes one of  
the notes does not play. There is also a drumroll a bit later (after  
4 seconds or so). This drumroll is really broken in my setup (most of  
the notes don't play).
But if I play this file in Quicktime player, there is no problem :  
all notes are played.

Any hint ?
thanks a lot