Pitch

диапазћн гћлосаg range of the voice
высћкий гћлос a high voice
нќзкий гћлос a low voice
пускђть/пустќть петухђa Colloquial to screech
NB The phrase пускђть петухђ, above, describes involuntarily making a squeaky noise while talking or singing:
От волнљния Пљтя вдрџг пустќл петухђ и ћчень смутќлся. Petya's voice suddenly cracked from nervousness, and he got very embarrassed.