Re: [fluid-dev] Fluidsynth's volume is too "dynamic"

[Pedro Lopez-Cabanillas]

On Friday, January 22, 2010, Sebastian Biallas wrote:
> Hello,
>
> I'm using fluidsynth to play piano using rosegarden and an old MIDI
> keyboard (technics KN440).
>
> Since fluidsynth 1.0.9 the sound output is way too dynamic. If I press a
> key soft it's barely hearable and if I press it hard it's way to loud.
> The corresponding changelog entry of version 1.0.9 seems to be:
>
> "Volume attenuation SoundFont generator now behaves more like EMU10K1"
>
> I have a EMU10K1 and indeed, the asfxload sound behaves like the new
> fluidsynth. Unfortunately I prefer the old behaviour...
>
> Is there any switch to change this? I might have a crappy keyboard (I
> only recognized 7 different volumes looking at the MIDI traffic), but
> the old sound dynamic of fluidsynth was really good.

You can try some router rules. For instance, the following set does:
1. for notes with velocity < 40, vel. is set to 40
2. for notes with vel between 40 and 100, it is not changed
3. for notes with vel > 100, it is set to 100

router_clear
router_begin note
router_par2 0 39 0 40
router_end
router_begin note
router_par2 40 100 1 0
router_end
router_begin note
router_par2 101 127 0 100
router_end

Regards,
Pedro