Senjin,
The dynamic range of a patch is controlled by a modulator at the
SoundFont level (velocity -> attenuation). This can be adjusted by
a SoundFont editor that supports editing SoundFont 2.1 modulators
(currently I only know of Creative Labs Vienna SoundFont Studio 2.3 or
higher, which requires a SoundFont 2.1 capable card to allow modulator
editing). If unspecified, a patch's velocity -> attenuation
modulator is set at 96 dB. It can be set anywhere between 0 dB (no
sensitivity) and 144 dB (maximum sensitivity). FluidSynth doesn't seem
to be sensitive enough at the default 96 dB attenuation, so I set it to
144 dB in the source code I gave you. When I get more time, I really
need to experiment with the different types of velocity curves
available to see if the problem is with the scale used, or a curve that
is too sharp.
Regarding the filter, I simply removed an incorrect interpretation of
the default filter setting proposed by Creative Labs. This was causing
some instruments to sound overly muffled. Filters are set at the
preset level, but you can set modulators that interact with the filter
in different ways (for example, mapping a MIDI controller to filter
cutoff).
I am anxiously awaiting progress on the Swami project, since there are
no other good SoundFont editors that work under Linux, and the only
complete solution on Windows (Vienna SoundFont Studio) only works on
Creative Labs cards and is buggy and clunky to use.
-~Chris
senjin wrote:
Hi,
I use archlinux, but your source compiled without problems.
It sounds better - finally I have feeling of playing musical
instrument! ;) However it would be cool if there was a possibility for
the user to modify the dynamic range - I think I would like to try even
higher dynamic range.
One more question: is the filter (mentioned in point A) turned on by
default? Is there any way to interact with its settings?
Thanks for help!
Senjin
S. Christian Collins pisze:
Senjin,
I have created a custom version of FluidSynth that includes the
following modifications:
A) velocity-to-filter cutoff modification
B) fixed some crashes related to modulators
C) set default velocity-to-attenuation to 144 dB instead of 96 dB for
increased velocity-to-attenuation sensitivity. Note that some
SoundFonts may override this setting.
Here's the source code:
http://www.schristiancollins.com/temp/fluidsynth-1.0.8-scc2.tar.gz
If you use Ubuntu, I have also created .deb files for easy installation
(you'll want all three--use at your own risk):
http://www.schristiancollins.com/temp/fluidsynth_1.0.8-scc2_i386.deb
http://www.schristiancollins.com/temp/libfluidsynth1_1.0.8-scc2_i386.deb
http://www.schristiancollins.com/temp/libfluidsynth-dev_1.0.8-scc2_i386.deb
If you'd like a good GM/GS bank, here's one I custom-designed to work
with this version of FluidSynth:
http://www.schristiancollins.com/temp/GeneralUser%20GS%20FluidSynth%20v1.43%20RC1.sf2.bz2
Enjoy :)
-~Chris
senjin wrote:
I'm new to the list, so hello everybody!
I'm not English native speaker so sorry for the mistakes...
I use fluidsynth 1.0.8 with qsynth 0.3.2. I noticed the following
problem: When I play my electric piano connected via MIDI to the PC the
dynamic range of the sounds played by fluidsynth is very low - much
lower than of the sounds from the audio output of my piano. All the
notes from fluidsynth have very similar loudness.
I noticed the problem using two popular soundfonts: naturalstudio
ns_kit7free drumkit and FluidR3GM.SF2, so I doubt that this is a
problem with my soundfonts.
I'm not soundfont expert, but some time ago I read that there are two
ways of assigning sample dynamic to MIDI velocity values: linear and
logarithmic. Some soundfonts require one, some another. Using the wrong
one leads to wrong dynamic. I guess that this is the source of the
problem.
However I couldn't find in qsynth nor in fluidsynth an option to chose
the dynamic mode. Is it implemented?
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