normal pitch

noun

, Machinery.

First recorded in 1895–1900

Medium Pitch should correspond with the normal pitch of discourse previously described.

Gardiner, in his “Music of Nature,” tells of experiments he made in order to determine the normal pitch of the human voice.

Instead of keeping the voice evenly on one or two notes, we speak much higher or lower than our normal pitch.

The largest bass flute in the Brussels museum is in at the French normal pitch A 435 double vibrations per second.

She raised her voice to its normal pitch again, as I had done.

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