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84 lines
4 KiB
Markdown
84 lines
4 KiB
Markdown
# export
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Furnace allows you to export your song in several formats. this section deals with describing the available export options.
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## export audio
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this option allows you to export your song in .wav format. I know I know, no .mp3 or .ogg export yet, but you can use a converter.
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there are two parameters:
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- **Loops**: sets the number of times the song will loop.
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- does not have effect if the song ends with `FFxx` effect.
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- **Fade out (seconds)**: sets the fade out time when the song is over.
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- does not have effect if the song ends with `FFxx` effect.
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and three export choices:
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- **one file**: exports your song to one .wav file.
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- **multiple files (one per chip)**: exports the output of each chip to .wav files.
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- **multiple files (one per channel)**: exports the output of each channel to .wav files.
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- useful for usage with a channel visualizer such as corrscope.
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## export VGM
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this option allows exporting to a VGM (Video Game Music) file. these can be played back with VGMPlay (for example).
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the following settings exist:
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- **format version**: sets the VGM format version to use.
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- versions under 1.70 do not support per-chip volumes, and therefore will ignore the Mixer completely.
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- other versions may not support all chips.
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- use this option if you need to export for a quirky player or parser.
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- for example, RYMCast is picky with format versions. if you're going to use this player, select 1.60.
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- **loop**: includes loop information. if disabled, the resulting file won't loop.
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- **loop trail**: sets how much of the song is written after it loops.
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- the reason this exists is to work around a VGM format limitation in where post-loop state isn't recorded at all.
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- this may change the song length as it appears on a player.
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- **auto-detect**: detect how much to write automatically.
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- **add one loop**: add one more loop.
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- **custom**: allows you to specify how many ticks to add.
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- `0` is effectively none, disabling loop trail completely.
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- this option will not appear if the loop modality isn't set to None as there wouldn't be a need to.
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- **chips to export**: select which chips are going to be exported.
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- due to VGM format limitations, you can only select up to two of each chip type.
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- some chips will not be available, either because VGM doesn't support these yet, or because you selected an old format version.
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- **add pattern change hints**: this option adds a "hint" when a pattern change occurs. only useful if you're a developer.
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- the format of the "hint" data block that gets written is: `67 66 FE ll ll ll ll 01 oo rr pp pp pp ...`
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- `ll`: length, a 32-bit little-endian number
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- `oo`: order
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- `rr`: initial row (a 0Dxx effect is able to select a different row)
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- `pp`: pattern index (one per channel)
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- **direct stream mode**: this option allows DualPCM to work. don't use this for other chips.
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- may or may not play well with hardware VGM players.
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click on **click to export** to begin exporting.
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## export text
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this option allows you to export your song as a text file.
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## export ZSM
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ZSM (ZSound Music) is a format designed for the Commander X16 to allow hardware playback.
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it may contain data for either YM2151 or VERA chips.
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Calliope is one of the programs that supports playback of ZSM files.
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the following settings are available:
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- **Tick Rate (Hz)**: select the tick rate the song will run at.
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- I suggest you use the same rate as the song's.
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- apparently ZSM doesn't support changing the rate mid-song.
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- **loop**: enables loop. if disabled, the song won't loop.
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- **optimize size**: removes unnecessary commands to reduce size.
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click on **Begin Export** to... you know.
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## export command stream
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this option exports a binary file which contains a dump of the internal command stream produced when playing the song.
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it's not really useful, unless you're a developer and want to use a command stream dump for some reason (e.g. writing a hardware sound driver).
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- **export**: exports in Furnace's own command stream format (FCS). see `export-tech.md` in `papers/` for details.
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