anton-bot/Facebook-Messenger-Voice-Message-Converter
Converts the Facebook Messenger voice messages from video/mp4 or audio/aac to the PCM/WAV format suitable for Bing Speech API - anton-bot/Facebook-Messenger-Voice-Message-Converter
Receives a message from Facebook; Downloads the voice file from that message ; Converts MP4/AAC audio file to WAV using open-source FFMPEG library ...