I found this to be interesting, I have had many witnesses report to me, what they heard sounded like a deaf person trying to speak.
Vocal experts examine the first full skeleton of a neanderthal ever to be discovered and uncover insights into the most likely sound our primitive cousins would have made. Interesting short video from BBC show ‘Neanderthal: The Rebirth’.
The Olympic Project Recorded this:
Disclaimer: We do not know what these sounds are. We are not claiming that they are Sasquatch but we do find them interesting considering the circumstances and conditions surrounding the situation. The Witnesses involved have been having consistent interactions in their remote location.
The OP has been recording and tracking a voice at a remote location. We reviewed numerous vocalizations recorded. One of them, in particular, we noticed the voice had some peculiarities comparing to human structure both visually and auditory. The tonal quality is higher pitched, and nasally, similar to a hearing challenged person speaking. The voice is off a little. It also has a compact Hz resonance compared to a human voice. Yet the voice is thick with a deep resonance meaning the body cavity would most likely be large.
Source: http://www.olympicproject.com