“音域”怎么读？

她歌喉甜美,音域奇广.She has a marvellous voice with an extraordinary range.至少可以说，她的音域不够宽，而且令人不舒服的是，她总是音高偏低。Her vocal range was, to say the least of it, limited, and she had a distressing tendency to sing flat.钢琴的音域比人声的音域更大.A pian...

“音域”的英语可以翻译为：gamut，diapason，tonraum，range ...