^Yes, all of the *WwiseSounds* are PCM. The Language files are Vorbis it seems.
Code:
Streams: 18613 / 18613
Time: 00:03:05 (CPU 00:16:04)
Duplicates: 109 (100 MB) [113 MB >> 35.3 MB]
Size: 19.3 GB >> 6.94 GB >> 6.90 GB
Additional decoding memory is 79.7 MB
Decoding speed improved by up to 1.01x
Done!!!
I used flac plugin with l8 option here. I guess msc is better in terms of ratio but alot slower.
PS: And compression for the other files, files which have "02 00 00 00" in the beginning are compressed with zlib, "03 00 00 00" are compressed with lz4.