What is the difference between bass, treble, Tone, and Pitch Controls?
A. The Tone control is a single setting to raise or lower the tone of voice audio. If you set the Tone control to the middle or 0 setting it will not alter the voice. If you move the tone to lower settings below zero it will lower the tone of the voice and settings above 0 will increase the tone. This works well for the limited range of voice frequencies. However, for the wider range of frequencies of music it is useful to be able to control the lower (bass) frequencies and higher (treble) frequencies independently. Therefore, separate Bass/Treble controls are used in place of a single Tone control on the music bookshelf. On the Text bookshelf, the Tone control is replaced with a Pitch control. The Pitch control directly adjusts the Vocalizer text-to-speech (TTS) engine which provides a much wider range of control to the sound of the TTS than does the Tone control.
