43 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			43 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| # tildearrow Sound Unit instrument editor
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| 
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| this instrument editor has two tabs.
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| 
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| ## Sound Unit
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| 
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| for sample settings, see [the Sample instrument editor](sample.md).
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| 
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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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| 
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| ## Macros
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| 
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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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