55 lines
1.8 KiB
Markdown
55 lines
1.8 KiB
Markdown
# WonderSwan
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a handheld console released only in Japan by Bandai, designed by the same people behind Game Boy and Virtual Boy.
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for this reason it has lots of similar elements from those two systems in the sound department.
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it has 4 wavetable channels. some of them have additional capabilities:
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- the second channel could play samples.
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- the third one has hardware sweep.
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- the fourth one also does noise.
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unfortunately, the system mixes and outputs sound at only 24kHz, leading to noticeable aliasing noise...
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## effects
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- `10xx`: **change wave**.
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- `11xx`: **setup noise mode.** channel 4 only.
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- 0: disable.
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- 1-8: enable and set length.
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- `12xx`: **setup sweep period.** channel 3 only.
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- `00`: disable.
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- `01`-`20`: enable and set period for 1 to 32.
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- `13xx`: **setup sweep amount.** channel 3 only.
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- `00` to `7F` for 0 to 127.
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- `80` to `FF` for -128 to -1.
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- `20xx`: **set internal speaker loudness.**
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- 0-1: 100% (default).
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- 2-3: 200%.
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- 4-7: 400%.
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- 8: 800%.
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- has no effect when "Headphone output" is on. see "chip config" below.
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## info
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this chip uses the [WonderSwan](../4-instrument/wonderswan.md) instrument editor.
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## chip config
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the following option is available in the Chip Manager window:
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- **Headphone output**: enables stereo 16-bit output. if disabled, the internal speaker's 8-bit mono output is used. default is on.
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## channel status
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the following icons are displayed when channel status is enabled in the pattern view:
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- PCM mode (channel 2):
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-  off
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-  on
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- sweep (channel 3):
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-  disabled
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-  enabled
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- noise mode (channel 4):
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-  off
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-  on
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