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Update sample doc

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freq-mod 2023-06-13 23:57:42 +02:00 committed by tildearrow
parent 89f8c8fa19
commit 65a81d67b9
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doc/6-sample/README.md
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@ -1,6 +1,6 @@
# samples # samples
In the context of Furnace, a sound sample (usually just referred to as a sample) is a string of numbers that hold sampled PCM audio. In the context of Furnace, a sound sample (usually just referred to as a sample) is a string of numbers that represent sampled PCM audio.
In Furnace, these samples can be generated by importing a .wav (think of it as an higher quality MP3) file. In Furnace, these samples can be generated by importing a .wav (think of it as an higher quality MP3) file.
@ -13,6 +13,7 @@ as of Furnace 0.6, the following sound chips have sample support:
- PC Engine/TurboGrafx-16/HuC6280 - PC Engine/TurboGrafx-16/HuC6280
- Amiga/Paula - Amiga/Paula
- SegaPCM - SegaPCM
- NEC PC-9801/YM2608 (ADPCM channel only)
- Neo Geo/Neo Geo CD/YM2610 (ADPCM channels only) - Neo Geo/Neo Geo CD/YM2610 (ADPCM channels only)
- Seta/Allumer X1-010 - Seta/Allumer X1-010
- Atari Lynx - Atari Lynx
@ -21,12 +22,16 @@ as of Furnace 0.6, the following sound chips have sample support:
- QSound - QSound
- ZX Spectrum 48k (1-bit) - ZX Spectrum 48k (1-bit)
- RF5C68 - RF5C68
- WonderSwan - SNES/S-DSP
- WonderSwan (second channel only)
- tildearrow Sound Unit - tildearrow Sound Unit
- VERA (last channel only) - VERA (last channel only)
- Y8950 (last channel only) - Y8950 (last channel only)
- Konami K007232 - Konami K007232
- a few more that I've forgotten to mention - Irem GA20
- Ensoniq OTTO/ES5506
- Yamaha PCMD8/YMZ280B
- MMC5 (last channel only)
## compatible sample mode ## compatible sample mode
@ -45,9 +50,9 @@ due to limitations in some of those sound chips, some restrictions exist:
- NES: if on DPCM mode, only a limited selection of frequencies is available, and loop position isn't supported (only entire sample). - NES: if on DPCM mode, only a limited selection of frequencies is available, and loop position isn't supported (only entire sample).
- SegaPCM: your sample can't be longer than 65535, and the maximum frequency is 31.25KHz. - SegaPCM: your sample can't be longer than 65535, and the maximum frequency is 31.25KHz.
- QSound: your sample can't be longer than 65535, and the loop length shall not be greater than 32767. - QSound: your sample can't be longer than 65535, and the loop length shall not be greater than 32767.
- Neo Geo (ADPCM-A): no looping supported. your samples will play at ~18.5KHz. - Neo Geo (ADPCM-A): no looping supported. your samples will play at 18.518KHz.
- Neo Geo (ADPCM-B): no loop position supported (only entire sample), and the maximum frequency is ~55KHz. - Neo Geo (ADPCM-B): no loop position supported (only entire sample), and the maximum frequency is 55.555KHz.
- YM2608: the maximum frequency is ~55KHz. - YM2608: the maximum frequency is 55.555KHz.
- MSM6258/MSM6295: no arbitrary frequency. - MSM6258/MSM6295: no arbitrary frequency.
- ZX Spectrum Beeper: your sample can't be longer than 2048, and it always plays at ~55KHz. - ZX Spectrum Beeper: your sample can't be longer than 2048, and it always plays at ~55KHz.
- Seta/Allumer X1-010: frequency resolution is terrible in the lower end. your sample can't be longer than 131072. - Seta/Allumer X1-010: frequency resolution is terrible in the lower end. your sample can't be longer than 131072.