Controlling the
•A greater number of the Part parameters can be edited from the
•When creating song data, you can select sounds from the Classical/Contemporary/Solo/Enhanced sound sets simply by specifying the Bank MSB/LSB and Program Number.
•You can use system exclusive messages to control the Patch parameters that create the sound; e.g., pitch, TVF (filter), LFO, and envelope.
*For details on the parameters, refer to “Each
•These sounds are selected individually for each of the 32 parts. Unlike the Part parameters, the sound (instrument) parameters belong to the sound (not to the Part), meaning that their settings will be overwritten by the newly selected sound when you switch sounds from the front panel or by using program change messages. (The Part parameters will remain as they were set.) If you want to use sound parameters within your song data, you must select the sound before you modify the parameters.
Specify the sound A parameters | Transmit a program change |
and part parameters at the | number during the song to |
beginning of the song | switch to sound B |
Song data (time)
Sound A | Part |
parameters | parameters |
Sound B | Part |
parameters | parameters |
The structure of the synthesizer
When controlling the sound parameters, it is important to understand the structure of a conventional music synthesizer (oscillator, TVF, TVA, envelope, LFO). We recommend that you understand the following concepts before you use the operations described in this section.
WAVE
Provides for selection of the PCM waveform (wave) that is to form the basis of the sound, and specifies how its pitch will change.
TVF (Time Variant Filter)
Determines how the frequency components of the sound will change.
TVA (Time Variant Amplifier)
Specifies how the volume will change, and set the stereo position.
Envelope
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Pitch |
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envelope |
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Control signal 
Audio signal
Specifies how change will occur over time.
For example if you want to adjust the time over which the sound attacks or decays, you would adjust the TVA envelope to specify the desired volume changes.
LFO (Low Frequency Oscillator)
Specifies cyclic change (modulation). You can create vibrato by applying LFO to the pitch, “wah” by applying LFO to the TVF cutoff frequency, or tremolo by applying LFO to the TVA volume.
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