Global Variable

NSSpeechPitchBaseProperty

Get or set a synthesizer’s baseline speech pitch.

Declaration

const NSSpeechPropertyKey NSSpeechPitchBaseProperty;

Discussion

An NSNumber object that specifies the baseline speech pitch. Typical voice frequencies range from around 90 hertz for a low-pitched male voice to perhaps 300 hertz for a high-pitched child’s voice. These frequencies correspond to approximate pitch values in the ranges of 30.000 to 40.000 and 55.000 to 65.000, respectively.

This property is used with setObject:forProperty:error: and objectForProperty:error:.

See Also

Speech Property Keys

NSSpeechStatusProperty

Get speech-status information for the synthesizer.

NSSpeechErrorsProperty

Get speech-error information for the synthesizer.

NSSpeechInputModeProperty

Get or set the synthesizer’s current text-processing mode.

NSSpeechCharacterModeProperty

Get or set the synthesizer’s current text-processing mode.

NSSpeechNumberModeProperty

Get or set the synthesizer’s current number-processing mode.

NSSpeechRateProperty

Get or set a synthesizer’s speech rate.

NSSpeechPitchModProperty

Get or set a synthesizer’s pitch modulation.

NSSpeechVolumeProperty

Get or set the speech volume for a synthesizer.

NSSpeechSynthesizerInfoProperty

Get information about the speech synthesizer being used on the specified synthesizer.

NSSpeechRecentSyncProperty

Get the message code for the most recently encountered synchronization command.

NSSpeechPhonemeSymbolsProperty

Get a list of phoneme symbols and example words defined for the synthesizer.

NSSpeechCurrentVoiceProperty

Set the current voice on the synthesizer to the specified voice.

NSSpeechCommandDelimiterProperty

Set the embedded speech command delimiter characters to be used for the synthesizer.

NSSpeechResetProperty

Set a synthesizer back to its default state.

NSSpeechOutputToFileURLProperty

Set the speech output destination to a file or to the computer’s speakers.