Help: Issues decompressing unknown-LZO compressed data (.ghx2)

[beanieaxolotl]

Figured this was the best place to post this: my original post is here.

I am currently having difficulty on trying to decompress the LZO data from a .ghx2 file, or the original project file for music made with the GAX Sound Engine.
I would like to be able to decompress the data so I can easily reverse-engineer the sequence data format.

The only known "decompressors" I can find readily available are GAXPlay.exe and GAX.ocx.

I could not find any matching LZO algorithms for the data; QuickBMS didn't find any matches (even with brute-forcing). The few LZO decompression executables that I could find didn't even know what to do.

The LZO data is unheadered (i.e no LZOD header). I have separated the relevant data into a .bin file.

ghx2_lzo.zip

Edited September 7 by beanieaxolotl
Small correction

[beanieaxolotl]

I managed to find a portion of the uncompressed sample data stream in GAXPlay's memory (via Cheat Engine), and found a corresponding portion in the raw LZO stream.

I ripped both of these from the .ghx2 project file for Tak - The Great Juju Challenge (tak_3_04.ghx2). compressed.bin is from the file data itself, and uncompressed.bin was ripped from GAXPlay's memory.

The samples are formatted in an uncompressed signed 16-bit PCM stream, if this helps.

tak_examples.zip

Edited August 31 by beanieaxolotl
Clarification, and fixed silly error