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16 lines
807 B
Markdown
16 lines
807 B
Markdown
# AY8930 instrument editor
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AY8930 instrument editor consists of these macros.
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- **Volume**: volume sequence
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- **Arpeggio**: pitch in half-steps
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- **Noise Freq**: AY8930 noise generator frequency sequence
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- **Waveform**: selector of sound type: pulse wave tone, noise or envelope generator
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- **Pitch**: fine pitch
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- **Phase Reset**: trigger restart of waveform
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- **Duty**: duty cycle of a pulse wave sequence
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- **Envelope**: allows shaping an envelope
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- **AutoEnv Num**: sets the envelope to the channel's frequency multiplied by numerator
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- **AutoEnv Den**: sets the envelope to the channel's frequency divided by denominator
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- **Noise AND Mask**: alters the shape/frequency of the noise generator, allowing to produce various interesting sound effects and even PWM phasing
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- **Noise OR Mask**: see above
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