zdoom/fluidsynth
0
0
Fork 0
mirror of https://github.com/ZDoom/fluidsynth.git synced 2025-03-01 07:00:44 +00:00
Code Issues Projects Releases Packages Wiki Activity

Add documentation about effect sends and replacing the internal effects

Browse source
This commit is contained in:
Marcus Weseloh 2017-11-11 17:51:26 +01:00
parent 007cd2b5fc
commit be2db6082d
1 changed files with 20 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
doc/ladspa.md
View file

@ -98,7 +98,8 @@ generators for each voice) into the LADSPA effects.
Please note that if you run FluidSynth with the internal reverb and chorus Please note that if you run FluidSynth with the internal reverb and chorus
effects active (which is the default), then those effects are already mixed effects active (which is the default), then those effects are already mixed
into the Main:L and Main:R channels. into the Main:L and Main:R channels. Fore more details, please see the "Signal
Flow" section below.
For host port setups in mutli-channel configurations, please see the For host port setups in mutli-channel configurations, please see the
"Multi-Channel Output" section below. "Multi-Channel Output" section below.
@ -215,6 +216,24 @@ audio is passed into the LADSPA effects engine, the effects are run in the order
that they were created and the resulting audio is passed back into FluidSynth that they were created and the resulting audio is passed back into FluidSynth
(and from there to the sound card or other output). (and from there to the sound card or other output).
## Effect Sends
Please note that SoundFont designers can specify how much signal each
instrument should add to the reverb and chorus effect sends. When FluidSynth
renders a block of audio, all currently sounding instruments are mixed into the
`Main` output channels. In addition, all instruments add their signal to the
effect send ports (`Reverb:Send` and `Chorus:Send`) according to the effect
send amount specified in the SoundFont.
If you want to replace the internal reverb or chorus effects with a LADSPA
plugin and you want to honour the decisions made by the SoundFont designer, you
should use the `Reverb:Send` or `Chrous:Send` ports as effect input and
`Main:L` and `Main:R` ports as effect outputs. (See the "Example Setups" section
below for an example on how to replace the internal reverb with a LADSPA plugin.)
Please note that FluidSynth uses a mono signal for both effects, that is why
there is only a single send port for reverb and chorus.
# LADSPA Command Reference # LADSPA Command Reference