Virtual reconstructions of Neanderthal ears show that our extinct cousins had the same physical capacity for hearing as modern humans, and so could probably also make the same sounds we can – although whether they actually spoke a language is still unknown
Source:
https://www.newscientist.com/article/2269577-neanderthal-ears-were-tuned-to-hear-speech-just-like-modern-humans/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home