NAOqi Audio

Sound management

See also: Loudspeakers, Microphones, Loudspeakers, Microphones.

Use ...	To ...
ALAudioDevice	Manage audio inputs and outputs. This module is used by all other audio modules except ALAudioPlayer.
ALAudioPlayer	Play audio files on the robot.
ALAudioRecorder	Record audio files on the robot.

Sound detection and localization

Use ...	To ...
ALSoundDetection	Detect sound events.
ALSoundLocalization	Localize sounds detected by the ALSoundDetection module.

Language management

Use ...	To ...
ALSpeechRecognition	Make the robot understand what a human says.
ALTextToSpeech	Make the robot speak.
ALAnimatedSpeech	Combine speech and gestures.
ALVoiceEmotionAnalysis	Identifies the emotion expressed by the speaker’s voice.

How to temporarily change the language of the robot

Step	Action
	Make sure you understand the status of the different languages available on your robot: default, usual and temporarily set. Find the definitions in the user guides: Setting NAO’s preferred language Setting Pepper’s preferred language.
	To know which languages are installed on the robot, use: ALSpeechRecognitionProxy::getAvailableLanguages or ALTextToSpeechProxy::getAvailableLanguages
	To temporarily set a language, use: ALDialogProxy::setLanguage You can also use the following methods in order to mix 2 different languages, one for the speech recognition, and another for the text to speech function: ALSpeechRecognitionProxy::setLanguage ALTextToSpeechProxy::setLanguage

Deprecated modules

Deprecated modules
1.22	ALAudioSourceLocalization	Use ALSoundDetection instead.