Speechsounding
Speechsounding is a label used in linguistics and audio engineering to describe acoustic signals that evoke the acoustic characteristics of human speech while not necessarily carrying intelligible language. In this sense, speechsounding can refer to both natural speech that is analyzed for perceptual quality and synthetic or transformed sounds that are designed to resemble speech without conveying a specific utterance. The term is often used to discuss how closely a signal matches the auditory cues listeners expect from speech, rather than to identify a particular language or content.
In production, speechsounding arises from a combination of a resonant vocal tract (formants), a voice source
Measurement and evaluation of speechsounding involve both perceptual and objective approaches. Perceptual tests may assess intelligibility