Hi Christian,
I am the culprit author of "add sostenuto pedal functionality" (David isn't
responsible).
Thanks for your interesting and detailled report of real accoustic piano
behaviour when playing the same note more than once with the sustain or
sustenuto pedal active.
> I am hopeful that this change can be reverted, as I find it a significant
> obstacle to rendering a proper live performance.
I will look after this issue.
jjc.
> Message du 04/06/21 00:47
> De : "S. Christian Collins"
> A : "FluidSynth Devel"
> Copie à :
> Objet : [fluid-dev] repeating a note with the sustain pedal active cuts off
> the previous note
>
>
> Hi folks,
> I have noticed in recent FluidSynth versions that when I am playing any type
> of piano or keyboard sound, notes will sometimes drop out unexpectedly. After
> a bit of experimentation, I discovered what the problem is: when playing the
> same note more than once with the sustain pedal active, the previous note
> gets cut off. This is especially noticeable if you play the note loudly and
> then softly; the loud note just abruptly disappears. This did not happen in
> the past when I was using an older FluidSynth version for live performance
> with my band.
>
> I was able to find the culprit by running a git bisect: commit #048c51
>
> ------------------------------------------------------------------------------------
> Add sostenuto pedal functionality (ticket #47, #136)
> Apart from adding sostenuto pedal functionality, this also changes
> the behaviour of dampening currently sounding notes on the same key
> to ignore pedals.
> Signed-off-by: David Henningsson
> ------------------------------------------------------------------------------------
>
> Though the change to dampen currently sounding notes on the same key with
> sustain/sostenuto was deliberate, I disagree with this choice for the
> following reasons:
Real keyboard instruments do not behave in this manner. With the sustain pedal
depressed on a real piano, if you play a note loudly and then very quietly, you
still hear the continued vibrations from the initial, loud keystroke.
All other MIDI GM-style devices I have encountered allow previous notes on the
same pitch to remain, including those by Roland, Creative Labs/E-MU, and every
other SF2 and SFZ sample player of any worth. AFAIK, FluidSynth stands alone in
the decision to mute older notes on the same pitch by default.
>
> Here are some audio examples so you can hear what I am talking about. I have
> played the same patterns using:
A real piano (pedal notes-real piano.mp3)
FluidSynth prior to commit #048c51 (pedal notes-FluidSynth-old.mp3)
FluidSynth after commit #048c51 (pedal notes-FluidSynth-new.mp3)
> Each recording features the following patterns played with the sustain pedal
> active, in order:
FF note followed by PP note.
FF note followed by MP note.
FF note followed by four notes increasing in velocity from PP, and then
repeating a few times.
>
> Comparing the recordings, you can hear that the old FluidSynth behavior
> matches that of the real piano, whereas the new FluidSynth behavior is
> nothing alike. The MIDI file for these patterns is attached to this e-mail
> for troubleshooting.
> I am hopeful that this change can be reverted, as I find it a significant
> obstacle to rendering a proper live performance. It has implications with
> non-keyboard sounds as well, but I didn't want to flood this e-mail with
> audio examples, so I will only provide more examples if requested.
>
> Thank you for your time :)
>
> -~Chris
>
>
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> [ pedal notes test.mid (0.7 Ko) ]
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