|
| From: | Ceresa Jean-Jacques |
| Subject: | Re: [fluid-dev] My latest project - with FS2.0.0 ! |
| Date: | Mon, 8 Oct 2018 20:16:40 +0200 (CEST) |
Hi
> I'd forgotten all about the setbreathmode. I might try that with the original un-CC2'd soundfont.
To get a quick try it is probably the easiest way instead of edit soundfont. Then adding CC breath modulator in sounfont can be done later.
As explained in FluidPolyMono-0004.pdf section 3.4.5, setbreathmode command allows to set a cc Breath modulator to REPLACE the default "velocity to initial Attenuation" modulator for a channel.
It is useful when there is no CC breath to initial Attenuation in the SoundFont and the musician don't want to edit the Soundfont. Note that if a CC breath to initial Attenuation exits in the soundfont it supersedes the default modulator added by setbreathmode.
>setbreathmode 2 0 1 0 #cc Breath modulator to REPLACE the default "velocity to initial Attenuation" modulator for channel 2 (assumed played in monophonic mode)
>breathmode 2 # to verify your setting.
Important: when setbreathmode is not used and the musician want to add solely a "CC breath to initial Attenuation" modulator in soundfont, without cancelling the default "velocity to initial Attenuation" modulator. In this case, "velocity to initial Attenuation" modulator is still in effect and if the velocity of the received note is too low then the sound will be alway quiet even if the received CC breath value is high.
1) Normally, if the ewi controller puts the breath value in the velocity field before sending noteon messages this problem is fixed.
2) Also, the ewi controller could send a constant velocity value (above 0 , of course) to fix this problem.
Case (1) should be the typical default behaviour for any ewi. Also, case (1) and/or (2) can be often configured in most ewi setup.
jjc
> Message du 08/10/18 12:40
> De : "Ben Gonzales" <address@hidden>
> A : address@hidden
> Copie à :
> Objet : Re: [fluid-dev] My latest project - with FS2.0.0 !
>
> Thanks Tom.
>
> The soundfont I used was set up for keyboard and I added the CC2
> modulators. What the effect felt like (with the filter cutoff modulator
> in place) was:
> note 1 starts with low velocity, and gives low volume and little or no
> increase in volume with increased breath pressure. Note 2 comes in
> (legato mode) with CC2 already high and therefore velocity is high, so
> the volume of note 2 is much higher than note 1. What I don't understand
> is why that cutoff modulator was holding back note 1's volume. As soon
> as I removed it all was fixed.
>
> I read the spec 8.4.2, but I don't understand what the purpose of the
> modulator as specified is.
>
> I'd forgotten all about the setbreathmode. I might try that with the
> original un-CC2'd soundfont.
>
> Ben
>
> On 08/10/18 17:37, Tom M. wrote:
> > One of the default modulators required by the SF2 spec is the "MIDI
> > Note-On Velocity to Filter Cutoff", cf. section 8.4.2. Implementation
> > details of this particular modulator are not quite consistent in the
> > specs. That's why fluidsynth does not implement this modulator. If
> > however fluidsynth had implemented this modulator (according to 2.01
> > spec), the modulator listed by your instrument would cancel this
> > modulator entirely. But as it's not implemented, it's safe to remove
> > it.
> >
> > However I cant explain the volume spikes. Perhaps jjc can help out.
> >
> > Also I just noticed we already have a CC2 modulator implemented in
> > fluidsynth. You simply need to 'setbreathmode' via the shell to
> > activate it, cf. section 3.4.5:
> >
> > https://github.com/FluidSynth/fluidsynth/raw/master/doc/polymono/FluidPolyMono-0004.pdf
> >
> > Tom
> >
> > _______________________________________________
> > fluid-dev mailing list
> > address@hidden
> > https://lists.nongnu.org/mailman/listinfo/fluid-dev
>
>
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