(n.) Utterance with a hissing sound; also, the sound itself; a hiss.

aphonia artificial voice broken speech broken tones broken voice childish treble choked voice cracked voice croak crow dysarthria dyslalia dyslogia dysphasia dysphonia dysphrasia falsetto harshness hawking voice hiss hoarseness idioglossia idiolalia impairment of speech lisp lisping loss of voice muzzy speech nasal tone nasalization quaver shake speech defect speech impediment tremor twang