The Pepper robot use beep sounds to indicate when it start and end listing to something.
This nerves a lot.
Is there a way to turn this off without decreasing the main volume?
Erasing wavs is a bit rude :)
You can simply disable the audio feedback by using calls to the ALSpeechRecognition method nammed setAudioExpression.
asr = ALProxy("ALSpeechRecognition")
asr.setAudioExpression( False )
More info about this api can be found here: http://doc.aldebaran.com/2-5/naoqi/audio/alspeechrecognition-api.html