What it does ¶
ALAudioRecorder provides recording services in “WAV” and “OGG” file format of the signals coming from the robot’s microphones.
This module is only available on the robot.
How it works ¶
ALAudioRecorder relies on the linux library SNDFile to efficiently encode audio inputs in real time. ALAudioRecorder collects input signals through ALAudioDevice as described here ALAudioDevice .
Performances and Limitations ¶
The recording capabilities are for now limited to the following formats:
- four channels 48000Hz in OGG.
- four channels 48000Hz in WAV.
- one channels (front, rear, left or right), 16000Hz, in OGG.
- one channels (front, rear, left or right), 16000Hz, in WAV.
Getting started ¶
The most straightforward way to start using ALAudioRecorder is to use the Record Sound box in Choregraphe ( Multimedia > Sound category).