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fix formatting

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~d6 2023-09-13 01:15:20 -04:00
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audio-v2.md
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@ -65,32 +65,33 @@ Since each component has its own port, it's also much easier to adjust
one without having to fiddle with bit masks, shifting, etc.
## Appending A: proposed specification:
ADDR SIZE NAME DESCRIPTION
0x30 2 bytes vector callback address to use when note finishes playing
0x32 2 bytes duration duration to play sound in fractional seconds (1ms resolution)
0x34 1 byte attack envelope: attack duration (vol 0-100%, 10ms resolution)
0x35 1 byte decay envelope: decay duration (vol 100-50%, 10ms resolution)
0x36 1 byte sustain envelope: sustain duration (vol 50%, 10ms resolution)
0x37 1 byte release envelope: release duration (vol 50-0%, 10ms resolution)
0x38 2 bytes addr address to read waveform data from
0x3a 2 bytes length length of waveform data to read (in bytes)
0x3c 1 byte volume 4-bit volumes for left/right channels (6.7% resolution)
0x3d 1 byte (unused - reserved for expansion)
0x3e 1 byte pitch 1-bit loop and 7-bit MIDI note (0x00 gives silence)
0x3f 1 byte (unused - reserved for detune)
ADDR SIZE NAME DESCRIPTION
0x30 2 bytes vector callback address to use when note finishes playing
0x32 2 bytes duration duration to play sound in fractional seconds (1ms resolution)
0x34 1 byte attack envelope: attack duration (vol 0-100%, 10ms resolution)
0x35 1 byte decay envelope: decay duration (vol 100-50%, 10ms resolution)
0x36 1 byte sustain envelope: sustain duration (vol 50%, 10ms resolution)
0x37 1 byte release envelope: release duration (vol 50-0%, 10ms resolution)
0x38 2 bytes addr address to read waveform data from
0x3a 2 bytes length length of waveform data to read (in bytes)
0x3c 1 byte volume 4-bit volumes for left/right channels (6.7% resolution)
0x3d 1 byte (unused - reserved for expansion)
0x3e 1 byte pitch 1-bit loop and 7-bit MIDI note (0x00 gives silence)
0x3f 1 byte (unused - reserved for detune)
## Appendix B: existing specification
ADDR SIZE NAME DESCRIPTION
0x30 2 bytes vector callback address to use when note finishes playing
0x32 2 bytes position read current position in sample
0x34 1 byte output read envelope loudness at this moment (0x000 to 0x888)
0x35 (unused)
0x36 (unused)
0x37 (unused)
0x38 2 bytes adsr four 4-bit envelope values (attack/decay/sustain/release)
0x3a 2 bytes length length of waveform data to read in bytes
0x3c 2 bytes addr address to read waveform data from
0x3e 1 byte volume 4-bit volumes for left/right channels
0x3f 1 byte pitch 1-bit loop and 7-bit MIDI note
ADDR SIZE NAME DESCRIPTION
0x30 2 bytes vector callback address to use when note finishes playing
0x32 2 bytes position read current position in sample
0x34 1 byte output read envelope loudness at this moment (0x000 to 0x888)
0x35 (unused)
0x36 (unused)
0x37 (unused)
0x38 2 bytes adsr four 4-bit envelope values (attack/decay/sustain/release)
0x3a 2 bytes length length of waveform data to read in bytes
0x3c 2 bytes addr address to read waveform data from
0x3e 1 byte volume 4-bit volumes for left/right channels
0x3f 1 byte pitch 1-bit loop and 7-bit MIDI note