Weird .flv files, can't convert/listen to them (Hexic HD)

[Pepsee]

Hello, everyone! I recently got into digging through the files of an old, but gold Xbox Arcade Game: Hexic HD. After exporting the files, I wanted to look through the audio, as it was really the main event for me. To my surprise, I didn't get .wav or .xma files at least, but .flv files that I can't open with any audio player for the life of me.
I uploaded all 29 sounds files here.

Here is a picture of the header, I don't know what else to do, Wavepad, VLC, EkszBox-ABX, towav.exe, none of them will open them or convert them.

[aluigi]

0x165 is the codec for XMA which can be converted with ffmpeg.
So remove the first 0x19 bytes of the FLV header, dump the remaining data as .wav and then: ffmpeg -i input.wav output.wav
Now you can play output.wav with any player.

*edit* fixed syntax

[Pepsee]

Unrecognized option "o". Sorry, I never Hex Edited ever before... I don't know which are the first 0x19 bytes either...

[brendan19]

Hexic HD Sounds

Here you go

Transcoded into PCM WAV from XMA using vgmstream.

I have also included the original XMA streams just in case anyone else wants them.

[aluigi]

My mistake on the -o option, don't know how it went there...

[A44]

I have a similar request / problem, but with .flv files that wont play from UNO, they were embedded in / contained in a .swf file which I decompiled and the .flv audio clips are not playable, if anyone could help me make them playable / convert them that would be great! I have attached a zip with all the files in.