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| − | '''YMX''' is a voice bank format which contains a collection of [[YM2612]] voices, invented by [[saxman]] for use in his [[Sonic QX]] program. It has been since implemented, to different extents, in other music-related hacking programs, such as [[Sonic One Music Editor]], [[xm3smps]], and [[xm4smps]].
| + | #REDIRECT [[sega:YMX]] |
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| − | ===Specifications===
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| − | The official specifications for the YMX format have been released by [[saxman]] amongst the documentation included in Sonic QX. An verbatim extract from the original file follows.
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| − | ====Header====
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| − | <pre>First 6 bytes - 59 4D 32 36 31 32 (YM2612)
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| − | Byte 7 - format <reserved -- leave it as 00>
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| − | Byte 8 - number of voices (+1) in the file;
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| − | -- FF is for 0 voices
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| − | -- 00 is for 1 voice
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| − | -- 01 is for 2 voices
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| − | -- 02 is for 3 voices, etc.
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| − | A YMX bank is allowed up to 128 voices. So anything above 7F is illegal. This
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| − | limit is used to seek future compatibility with MIDI messages and Yamaha DX/TX
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| − | conversions.</pre>
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| − | ====Voice====
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| − | <pre>Directly after the first 8 bytes, the data for the first voice begins. There
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| − | are a total of 35 bytes used for each individual voice. They follow one after
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| − | another. Below are the YM2612 register equivallents to each byte in a voice.
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| − | 1 - register 0B0
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| − | 2 - register 030
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| − | 3 - register 031
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| − | 4 - register 032
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| − | 5 - register 033
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| − | 6 - register 050
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| − | 7 - register 051
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| − | 8 - register 052
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| − | 9 - register 053
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| − | 10 - register 060
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| − | 11 - register 061
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| − | 12 - register 062
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| − | 13 - register 063
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| − | 14 - register 070
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| − | 15 - register 071
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| − | 16 - register 072
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| − | 17 - register 073
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| − | 18 - register 080
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| − | 19 - register 081
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| − | 20 - register 082
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| − | 21 - register 083
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| − | 22 - register 040
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| − | 23 - register 041
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| − | 24 - register 042
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| − | 25 - register 043
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| − | Bytes 26-35 - voice name in ASCII format</pre>It should be noted that the voices are stored in the format used by ''[[Sonic 2]]'', so some [[:Image:VoiceOperators.png|byte swaps]] are needed to use those voices in the other Sonic games that use [[SMPS]].[[Category:Data Formats]][[Category:Music]]
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