[iiwusynth-devel] Re: Exclusive class and float-limiter

[Peter Hanappe]

M. Nentwig wrote:
> Hello,
>
> I have implemented the exclusive class function ('an open hi-hat sound
> terminates a closed-hi-hat sound'). Further, I have removed the limiter
> for float-output, which took me so much effort to implement only a week
> ago (four lines of beautifully handcrafted code, although completely
> braindead :-)

I did it already today, running through all the previous emails.


> Now there is a new Iiwusynth API function to terminate voices on a given
> channel, depending on exclusive class. iiwu_defsfont.c will then call it
> during the voice setup. It's somehow on one level with 'allocate_voice'.
> But during 'allocate_voice', the exclusive class is not yet known, so
> this had to be put into an own function.
> Maybe this should be made more generic, i.e. 'postprocess_voice' or the
> like. Peter?

The iiwu_synth_terminate_exclusive_class() you proposed won't work
correctly if a noteon spins off several voices. In that case, the
second voice will terminate the first voice.

However, the synthesizer keeps a note ID. It's used for noteoff to
determine what note event is the oldest one and to find all the
related voices.

I just commited a solution that replaced the iiwu_voice_start()
with iiwu_synth_start_voice().



> Below is a diff, let's hope the linebreaks are not mangled this time.

BTW, how's the CVS access been working?

Lates,
Peter


> Cheers
>
> Markus