Hello Jean-Jacques,
perhaps it will help if I describe how I can create the problem.
Environment :
=============
Current Raspian distro, fluidsynth 1.1.6
I'm using an RPi 2 with an external Behringer USB DAC and a Roland UM-ONE
USB Midi adaptor - I don't believe the specific hardware is relevant.
Steps to reproduce :
====================
Run fluidsynth as follows :
schedtool -R -p 49 -e fluidsynth -a alsa -o audio.alsa.device=front:CODEC,0
-m alsa_raw -o midi.alsa.device=hw:1,0,0 -g 0.5 -C no -R no -l
Load the standard GM font :
load /usr/share/sounds/sf2/FluidR3_GM.sf2
Sound a note from this font :
noteon 0 60 80
noteoff 0 60
This makes the correct noise - GM Acoustic Grand.
Load a Hammond Organ font :
load /home/pi/Music/Hammondsf2/05.sf2
This has blown away our channel mapping, so remap :
select 0 1 0 0
select 1 2 0 0
Sound the same GM note as before :
noteon 0 60 80
noteoff 0 60
This makes the correct noise - GM Acoustic Grand.
Sound a note from the Hammond font :
noteon 1 60 80
noteoff 1 60
This makes the correct noise - Hammond.
Sound a note from the GM font again :
noteon 0 60 80
noteoff 0 60
This makes the correct noise - GM Acoustic Grand
Now play a note on channel 2 on a midi keyboard - this makes the correct
noise ( Hammond ).
Now play a note on channel 1 on a midi keyboard. This makes the WRONG
noise, its a horribly distorted Acoustic Piano.
It might just be a mix of Hammond and Acoustic Piano, but to me it sounds
more like the Acoustic Piano with the vibrato from the Hammond.
Issue the command
cc 0 121 0
Play the keyboard again ( channel 1 ) - now this makes the correct noise (
Acoustic Grand ).
Unfortunately the Hammond soundfont is commercial, so I can't just share it
:(. I used a tool ( Swami ) to look at this font. When I look at notes in
the instrument section, and select the 'Misc. Controls' tab, I see a non
zero value ( 8.176 ) for the frequency setting of the Modulation LFO.
So my initial hypothesis is that when a note is played ( via MIDI ), then
this modulation is applied to all MIDI channels, even if they are mapped to
an entirely different font.
Cheers,
Mark
On Wed, 20 Jul 2016 09:56:14 +0200, you wrote:
Hi, Mark
the modulation characteristics of a Hammond font mapped to one midi
channel end up being applied to everything...
Can you explain what you mean by "..the modulation caracteristics of a Hammond
font.." ?
If you feel that there is something wrong, please don't hesitate to explain
what you have found.
I've looked at sourceforge, but it wasn't clear how I should raise a
ticket.
1) You must create an account on Sourceforge.
2) Once logged from your account, the Ticket tab enables menus to create and
edit your ticket.
Is this an appropriate place to discuss the problem ? If so I'll
supply more details.
I you read through the tickets you will find that usually tickets are used to:
1) raise "Bugs" or offer "patches".
2) but they are used also for "technical suggestions"about fluidsynth actual
behavior
and possible enhancements to remain compliant with SoundFonts and MIDI.
Regards
Le 20/07/2016 02:30, Mark de Roussier a écrit :
Hi everyone,
I'm attempting to use fluidsynth as the basis for a headless soundfont
synth based on an RPi. The particular requirement is that it should have
some good Hammond organ sounds, and also support standard GM. So I'm trying
to configure fluidsynth with some commercial Hammond fonts plus the
standard fluidsynth GM font.
I think I've found a problem in the course of trying to make this work. The
gist of the matter is that there appear to be some circumstances in which
the modulation characteristics of a Hammond font mapped to one midi channel
end up being applied to everything, regardless of font or channel.
I've looked at sourceforge, but it wasn't clear how I should raise a
ticket. Is this an appropriate place to discuss the problem ? If so I'll
supply more details.
Thanks,
Mark
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