jkotlinski / lsdj-doc Goto Github PK

Could be nice to have the example there, for how to make a simple P kick

it says "CLK/GND" but should be CLK/OUT or something.

Clarify (in section about PITCH modes):

The non-tick PITCH modes are not synchronized with sequencer ticks.

Because of this, commands like P will not behave the same every time.

Put a piece of tape between cart and gameboy to firm up connection?

Manual incorrectly shows FR-3. It should be FR-1.

Update intro

~~ What SYNTH LENGTH/SPEED does ~~

• a wave table with (LENGTH + 1) steps is generated from the SYNTH
• the wave table start points at WAVE ?0, the end points at WAVE ?F,
  inbetween steps are interpolated
• each wave table step is played for SPEED ticks

Examples:

LENGTH F, SPEED 6
Plays all 16 WAVEs in the SYNTH. Each WAVE is played for 6 ticks.
LENGTH 3, SPEED C
Plays 4 WAVEs from the synth. Each WAVE is played for C ticks.

~~ What LOOP REPEAT does ~~

• when reaching end of the wave table, jump back REPEAT steps

Examples:

LENGTH 3, REPEAT 3, SPEED 6
Plays 4 WAVEs from the synth, each WAVE for 6 ticks, and loops all 4 WAVEs.
The period is 6 * 4 = 24 ticks.
LENGTH 3, REPEAT 1, SPEED 6
Like above, but only loops the last 2 WAVEs.

~~ What PINGPONG REPEAT does ~~

• when reaching end of wave table, start playing in reverse direction for
  REPEAT steps, then turn forward again.

Examples:

LENGTH 2, REPEAT 2, SPEED 6
Plays wavetable step 0,1,2,1,0,1,2,1..., 6 ticks each. Period = 46 = 24 ticks
LENGTH 4, REPEAT 4, SPEED 6
Plays wavetable step 0,1,2,3,4,3,2,1,..., 6 ticks each. Period = 86 = 48 ticks

The manual is not so helpful in explaining how the noise channel works. Add some explanation. (Maybe check what Famitracker documentation writes, for inspiration?)

1st digit = time, 2nd digit = increase/decrease

~~ What SYNTH LENGTH/SPEED does ~~

• a wave table with (LENGTH + 1) steps is generated from the SYNTH
• the wave table start points at WAVE ?0, the end points at WAVE ?F,
  inbetween steps are interpolated
• each wave table step is played for SPEED ticks

Examples:

LENGTH F, SPEED 6
Plays all 16 WAVEs in the SYNTH. Each WAVE is played for 6 ticks.
LENGTH 3, SPEED C
Plays 4 WAVEs from the synth. Each WAVE is played for C ticks.

~~ What LOOP REPEAT does ~~

• when reaching end of the wave table, jump back REPEAT steps

Examples:

LENGTH 3, REPEAT 3, SPEED 6
Plays 4 WAVEs from the synth, each WAVE for 6 ticks, and loops all 4 WAVEs.
The period is 6 * 4 = 24 ticks.
LENGTH 3, REPEAT 1, SPEED 6
Like above, but only loops the last 2 WAVEs.

~~ What PINGPONG REPEAT does ~~

• when reaching end of wave table, start playing in reverse direction for
  REPEAT steps, then turn forward again.

Examples:

LENGTH 2, REPEAT 2, SPEED 6
Plays wavetable step 0,1,2,1,0,1,2,1..., 6 ticks each. Period = 46 = 24 ticks
LENGTH 4, REPEAT 4, SPEED 6
Plays wavetable step 0,1,2,3,4,3,2,1,..., 6 ticks each. Period = 86 = 48 ticks

How are they different and which should be used when?

E.g. numpad cursor for SELECT+DPAD screen navigation seems to be implemented, but it is not in the manual.
There might be other undocumented keypresses, too. Figure it out.

Document how to play hand-drawn waves (manual mode). E.g., there are two hand-drawn waves (00 and 01), how to play 00 as attack and 01 as release?

• A20
• Tick pitch
• ?