fdfbff3999
There are also a couple tiny instances of formatting, like [sic] in the Namco 163 doc (yes, it is now correctly formatted) and a couple labels that needed bold.
59 lines
2.7 KiB
Markdown
59 lines
2.7 KiB
Markdown
# Game Boy instrument editor
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the Game Boy instrument editor consists of three tabs: one controlling envelope of sound channels, another for the wave synth and macro tab containing several macros.
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## Game Boy
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- **Use software envelope**: switch to volume macro instead of envelope.
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- this exploits a bug in the Game Boy sound hardware in order to have software envelopes ("zombie mode").
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- only a couple emulators have accurate reproduction of this bug.
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- **Initialize envelope on every note**: forces a volume reset on each new note.
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- **Volume**: initial channel volume (0 to 15).
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- **Length**: envelope decay/attack duration (0 to 7)
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- **Sound Length**: cuts off channel after specified length, overriding the Length value.
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- **Direction**: up makes the envelope an attack. down makes it decay.
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- note: for attack to have effect, start at a lower volume.
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- **Hardware Sequence**: this allows you to define a sequence of hardware envelope changes for creating complex envelopes. see the next section for more information.
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### hardware sequence
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Furnace provides a sequencer for the hardware envelope. this way you can define timed envelope changes which may be used for simulating ADSR, adding simple release, and other things.
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the sequence consists of a list of "commands".
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the `+` button adds a new command, which may be one of the following:
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- **Envelope**: sets envelope values and retriggers note. it is highly recommended to have this as the first command.
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- **Sweep**: sets sweep parameters. only works on the first channel.
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- **Wait**: waits a specific number of ticks.
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- **Wait for Release**: waits until the note is released with `===` or `REL`.
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- **Loop**: goes to a previous position in the sequence.
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- **Loop until Release**: same as Loop, but doesn't have effect after releasing the note.
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each command in the sequence is represented in three columns:
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- **Tick**: the tick this command will execute, followed by position in the sequence.
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- **Command**: the command and its parameters.
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- **Move/Remove**: allows you to move the command, or remove it.
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## Wavetable
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this allows you to enable and configure the Furnace wavetable synthesizer. see [this page](wavesynth.md) for more information.
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notes:
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- only for Wave channel.
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- on Game Boy, using the wave synth may result in clicking and/or phase resets. by default Furnace attempts to mitigate this problem though, but some clicking may still be audible.
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## Macros
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- **Volume**: volume sequence.
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- note: this only appears if "Use software envelope" is checked.
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- **Arpeggio**: pitch sequence.
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- **Duty/Noise**: pulse wave duty cycle or noise mode sequence.
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- **Waveform**: channel 3 wavetable sequence.
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- **Panning**: output for left and right channels.
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- **Pitch**: fine pitch.
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- **Phase Reset**: trigger restart of waveform.
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