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# Philips SAA1099 instrument editor
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2023-09-10 13:16:55 -04:00
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the SAA1099 instrument editor consists of these macros:
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2023-09-09 21:07:05 -04:00
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- **Volume**: volume sequence.
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- **Arpeggio**: pitch sequence.
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- **Duty/Noise**: noise generator frequency. the following values are available:
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- `0`: high
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- `1`: mid
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- `2`: low
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- `3`: use frequency of channel 1 or 4 (depending on where the instrument plays).
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- **Waveform**: selector between tone and noise.
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- **Panning (left)**: output level for left channel.
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- **Panning (right)**: output level for right channel.
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- **Pitch**: fine pitch.
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- **Envelope**: envelope generator settings:
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- **enable**: enables the envelope generator.
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- **N/A**: has no effect.
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- **fixed**: toggles whether to use a fixed, slow frequency or lock to the frequency of channel 2 or 5 (depending on where the instrument plays).
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- **resolution**: increases the envelope generator pitch resolution.
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- **direction**: inverts the envelope.
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- **cut**: cuts the envelope (producing saw wave out of tri wave)
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- **loop**: toggles whether envelope is one-shot or constantly looping.
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- **mirror**: sets whether the right output will mirror the left one.
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- the envelope only has effect in channels 3 and 6.
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