I have some audio files that are in this mystery format I can't quite figure out. Here is a list of things I have tried:

• Opening them up with a Hex Editor
• Gary Kessler's File Signatures list
• Audacity (opened as raw data)
• Awave Studio
• SoX (Sound eXchange)
• TrID
• DROID

Thanks to the answer by nneonneo here it sounds like my samples are somewhere between a typical compressed format and a speech format.

Here is an example, and this is what it should sound like. I'm at a loss for anything else I can try- most suggestions i've seen in my searches don't seem to work for headerless formats like this.

I would be delighted if anyone knows of any good tools or even if there was a paid service available for something like this.