Difference between revisions of "SCUMM/Technical Reference/Sound resources"

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consistency changes
(→‎Early v5 - SBL blocks: add block size bits for AUhd and AUdt)
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The redundant header is possibly due to building on a legacy implementation, or for easier identification in the table stored in the .000 index file.
The redundant header is possibly due to building on a legacy implementation, or for easier identification in the table stored in the .000 index file.


The music block may contain any combination of ROL (Roland MT-32), ADL (Adlib/OPL FM), or SPK (PC speaker) blocks. They can also store a single SBL block for digitized sound (described in a later section). Aside from SBL, each of these blocks follow the same basic pattern.
The music block may contain any combination of ROL (Roland MT-32), ADL (AdLib/OPL FM), or SPK (PC speaker) blocks. They can also store a single SBL block for digitized sound (described in a later section). Aside from SBL, each of these blocks follow the same basic pattern.


   Block name        4 bytes ("ROL ", or "ADL ", or "SPK ")
   Block name        4 bytes ("ROL ", or "ADL ", or "SPK ")
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Every track is stored in MIDI format, in order to make use of the iMUSE technology through System Exclusive (SysEx) messages.
Every track is stored in MIDI format, in order to make use of the iMUSE technology through System Exclusive (SysEx) messages.


Due to the predominance of the Sound Blaster and Adlib/OPL FM technology at the time, in at least MI2 every musical SOUN block contains an ADL block.
Due to the predominance of the Sound Blaster and AdLib/OPL FM technology at the time, in at least MI2 every musical SOUN block contains an ADL block.


==iMUSE==
==iMUSE==
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  TOWS - FM Towns
  TOWS - FM Towns
  SBL  - Sound Blaster digitized sound (Creative VOC file)
  SBL  - Sound Blaster digitized sound (Creative VOC file)
  ADL  - Adlib (OPL FM)
  ADL  - AdLib (OPL FM)
  AMI  - Amiga MOD
  AMI  - Amiga MOD
  ROL  - Roland MT-32
  ROL  - Roland MT-32
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