RSO

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  • Extension: RSO

RSO is a sound file format used in conjunction with Lego Mindstorms construction sets.

File Format

All multi-byte numbers are big endian. An RSO file begins with the following 8-byte header:

 bytes 0-1    Unknown; possibly a file type
 bytes 2-3    File length, not including this 8-byte header
 bytes 4-5    Audio sample rate
 bytes 6-7    Unknown

The payload of the file follows immediately after the header.