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# AY8930 instrument editor
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2023-06-11 02:00:11 -04:00
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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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