phonate

To make sounds with one's voice.

His voice is perfect; he phonates loudly and well.

[A]s soon, however, as the patient endeavored to produce a higher note by phonating forcibly, the vocal cords were stretched unusually tight, the arytenoid cartilages were pressed spasmodically together, and no tone could be heard.

To use one's voice to make specific sounds.

[T]he tongue may rise up in the mouth, even while the patient phonates the vowel "a" [eh], in which case it will also need to be depressed by the finger, as just described.

The third and last difficulty [...] is the drawing up of the velum and uvula tightly against the pharyngeal wall, which occurs as soon as the patient opens the mouth widely, or as soon as your instruments are introduced within it; and when you remember that the position that we wish it to assume, the one that it must assume before your examination can be made, is precisely that which it takes when all muscular movement is in abeyance, and that the patient cannot assist you by carrying out any movements or phonating sounds, as he does in laryngoscopy, you will see the difficulty that presents itself.

voiced