It's because the audio is headerless, which is why it won't play. It's a mono-channel XMA variant 2 sound file at 48,000 hz. Attached is converted properly:
Thank you! Could you please tell me what's the step required to add the header? I'm kinda lost and I want to extract all the Spanish voice files. (I might be able to help with the British ones as well)
EDIT: Nevermind, I've found the solution now via VGMToolbox's XMA Converter.
Use the following values:
Start Offset: 0x00000800
Block Size: 0x00010000
Data Size is at offset: 0x44, size 4, Little Endian
Add RIFF Header
Frequency 48000Number of Channels is at offset 0x8C, size 4, Little Endian*
Enjoy your British ripping.
EDIT 2019/04/10: Fixed the specs, some audios are actually in Stereo.