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43 lines
1.7 KiB
Markdown
43 lines
1.7 KiB
Markdown
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# tildearrow Sound Unit instrument editor
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this instrument editor has two tabs.
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## Sound Unit
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for sample settings, see [the Sample instrument editor](sample.md).
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the differences are:
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- the lack of an "Use wavetable" option
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- the presence of a "Use sample" one
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- the presence of a "**Switch roles of frequency and phase reset timer**" option. when enabled, this writes frequency to the phase reset timer register rather than the frequency register
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- this may be used to create sync-like effects.
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## Macros
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- **Volume**: volume sequence.
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- **Arpeggio**: pitch sequence.
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- **Duty/Noise**: waveform duty cycle sequence.
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- **Waveform**: select waveform.
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- `0`: pulse wave
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- `1`: sawtooth
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- `2`: sine wave
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- `3`: triangle wave
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- `4`: noise
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- `5`: periodic noise
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- `6`: XOR sine
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- `7`: XOR triangle
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- **Panning**: stereo panning sequence.
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- **Pitch**: fine pitch.
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- **Phase Reset**: trigger restart of waveform.
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- **Cutoff**: set filter cutoff.
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- **Resonance**: set filter resonance.
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- values that are too high may distort the output!
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- **Control**: filter parameter/ring mod sequence.
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- **band pass**: a band-pass filter. cutoff determines which part of the sound is heard (from bass to treble).
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- **high pass**: a high-pass filter. higher cutoff values result in a less "bassy" sound.
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- **low pass**: a low-pass filter. the lower the cutoff, the darker the sound.
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- **ring mod**: enable ring modulation with previous channel.
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- note: square wave goes from 0 to volume, so in that case it acts more like amplitude modulation.
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- **Phase Reset Timer**: sets the phase reset timer.
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- if the "Switch roles of frequency and phase reset timer" option in the Sound Unit tab is enabled, this macro controls the frequency register instead.
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