A small piece of advice for those who practice Noh utai (chant). If your teacher’s voice is that of an elderly man, it doesn’t mean that you have to sound elderly, too. What I think the student should do when imitating the teacher’s chant is grasp its ‘essence’, focusing on melody and rhythm, if possible simplifying the ornaments and embellishments that you might hear and concentrating on the core of the chant. Listen to how young actors (of the same group) chant and try understand what the link between their young voices and that of your teacher is.
Remember that imitating requires a great deal of personal commitment.