Global Variable

NSSpeechVolumeProperty

Get or set the speech volume for a synthesizer.

Declaration

const NSSpeechPropertyKey NSSpeechVolumeProperty;

Discussion

An NSNumber that specifies the synthesizer’s speech volume.

Volumes are expressed in floating-point values ranging from 0.0 through 1.0. A value of 0.0 corresponds to silence, and a value of 1.0 corresponds to the maximum possible volume. Volume units lie on a scale that is linear with amplitude or voltage. A doubling of perceived loudness corresponds to a doubling of the volume.

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.

NSSpeechPitchBaseProperty

Get or set a synthesizer’s baseline speech pitch.

NSSpeechPitchModProperty

Get or set a synthesizer’s pitch modulation.

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.