SGI Audio Tools: Difference between revisions
Updated some data and added some screenshots
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Danielface (talk | contribs) (Updated some data and added some screenshots) |
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=== Compressing Sequence Data ===
==== Converting Your MIDI File(s) ====
MIDI files are generally either '''Type 0''' or '''Type 1'''. The former specifies all of the notes in a single "track" while the latter has multiple tracks, typically for each instrument. The SGI tools require MIDI files to be in Type 0 and provides the
Programs such as [https://musescore.org/ MuseScore] likely export in Type 1, so it's usually a good idea to convert to Type 0 before continuing.
[[File:Midicvt_sample_image.png|frameless|Screenshot of <code>midicvt</code> run successfully.]]
For each of your original MIDI files, run the following:
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==== Compressing Your MIDI File(s) ====
Once your MIDI files have been converted to Type 0, we'll be converting them to a compressed sequence format specialized for embedded playback on the Nintendo 64.
The NuSystem library is written to use compressed MIDI files for songs. If you inspect the library, you'll notice that it uses a <code> ALCSPlayer</code> for storing/playing songs. It is possible to use uncompressed Type 0 MIDI, but you'll need to look into editing/rebuilding NuSystem or your own audio code with Nintendo's core audio library.
[[File:Midicomp usage.png|frameless|Midicomp being successfully used.]]
For each of your converted MIDI files, run the following:
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Run the following command with each of your <code>cmf</code> files as parameters.
<br ><code>sbc -Osongs.sbk first_song_compressed.cmf second_song_compressed.cmf third_song_compressed.cmf</code>
[[File:Sbc used.png|frameless|sbc successfully used here]]
The '''ordering is important''' here! Keep note of the order of each parameter, as when you're selecting your songs in your game's source code, you'll be indexing them as they're ordered here (eg: <code>first_song_compressed.cmf</code> will be <code>0</code>, second_song_compressed.cmf </code> will be <code>1</code>, etc.).
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