Two years ago Titanfall 2 released with an amazing sound designed that I fell in love with, however Respawn switched from using the built in source engine audio codecs using uncompressed headerless .wavs to using the Miles Sound System with the extension .mstr. It was very difficult to get anyone to look into it and very little progress was made. A few days ago Apex Legends drop with awesome music and a incredible sound design to boot. However the same system is used yet again...
What is known is the following: The files are compressed, and variable size. Considering the frame sizes, they did not appear to be mp3 or ogg. According to what was observed with the codec, it looks to use some form of bink audio. Because using 8-bit quantizers It can easily be seen in the stream.
That is where everything ends...
This is what the offset begins with:
52 54 53 43 02 00 FF FF 70 07 4A 05 00 00 00 00
Attached is a sample file if anything else is needed please let me know. I'd love to get the sounds, plus the drop music for this incredible game. If anyone can discover, or come up with a way to extract this, it would be a breakthrough.