high pitch
high frequency

The high pitch of a woman's voice carried to them where a man's wouldn't have.

He has to make adjustments, stay off the high pitches, hit the other way.

This means that they use high and low pitches to help make differences in meaning clear.

She had a voice like a buzz saw at high pitch.

In 1867, the batter was given the right to call for a high or low pitch.

When she came back, her voice had a higher pitch to it.

His voice seemed lighter, and it had a higher pitch.

Her voice rose with a high pitch of fear in it.

The main thing you might notice is that all the sound has a slightly higher pitch.

His voice assumed the slightly higher pitch he used in class.