MIDI Channel Pressure to Vibrato LFO Pitch Depth - use this modulator to change the value of the generator vibLFOtoPitch.Ĥ. NOTE: this modulator makes it totally unnecessary to define velocity splits with different cutoff frequencies for an instrument when the audio data is sampled at only one velocity.ģ. For example: if the cutoff frequency, initialFilterFc, is set to 20000Hz (no cutoff) then it will become 14900Hz for a note of velocity 1Hz at velocity 40. MIDI Note-On Velocity to Filter Cutoff - this modulator will make the low pass filter cutoff frequency lower at lower velocities, which is mostly a natural behavior. But it can be switched off or even turned around.Ģ. This is true only if this default modulator is in effect, which it mostly is. MIDI Note-On Velocity to Initial Attenuation - you are probably used to thinking that the lower the note velocity the lower will the note volume become. There are 10 so called 'default' modulators:ġ. However, there are numerous other ways to change the note loudness or pitch in real time. These two are specified once and for all in the MIDI note event and cannot change after a note has started. NOTE All possible sources are 'real time' in nature, except for two 'in-built' ones: Velocity and Key#. You can have as many modulators in a chain as you like and all of them could modify the same generator, provided that sfModSrcOper, sfModDestOper, and sfModSrcAmtOper are not the same. (It is up to the synthesizer engineer to construct other transforms, so don't rely on it!) You can change the Amount and the transform value, which is '0' or linear by default. This means that you cannot have two modulators in the chain with the same destination, source, primary 'Norm' curve and secondary source and secondary 'Norm' curve. sfModSrcAmtOper contains the specification for the secondary source and the secondary 'Norm' curve. SfModDestOper is equal to the SoundFont generator to be modified. If a second modulator is encountered with the same three enumerators as a previous modulator with the same zone, the first modulator will be ignored.' sfModSrcOper contains the specification for the primary source and the primary 'Norm' curve. All modulators within a zone must have a unique set of these three enumerators. 'A modulator is defined by its sfModSrcOper, its sfModDestOper, and its sfModSrcAmtOper.

Generaluser gs soundfont