I am currently using React as my front-end and Java Spring Boot as my server. I am using React-Mic to record audio, passed the audio to FormData and send a HTTP post request with that FormData as body to my Java server. However, as the recorded audio is in webm, there is no appropriate encoding for Google Speech-To-Text API. Any idea how I can convert the audio to flac or any other format type supported by Google Speech-To-Text API?
1 Answers
1
votes
Could probably use JAVE2 to convert from webm to mp3 (or other).
https://github.com/a-schild/jave2
The sample in the readme should point you in the right direction:
try {
File source = new File("file path"); // Path to your webm
File target = new File("file path"); // Output path
//Audio Attributes
AudioAttributes audio = new AudioAttributes();
audio.setCodec("libmp3lame"); // Change this to flac if you prefer flac
audio.setBitRate(128000);
audio.setChannels(2);
audio.setSamplingRate(44100);
//Encoding attributes
EncodingAttributes attrs = new EncodingAttributes();
attrs.setFormat("mp3"); // Change to flac if you prefer flac
attrs.setAudioAttributes(audio);
//Encode
Encoder encoder = new Encoder();
encoder.encode(new MultimediaObject(source), target, attrs);
// The target file should now be present at the path specified above
} catch (Exception ex) {
ex.printStackTrace();
}
After conversion you'd then have a file object which you could convert to a byte[] to send to the speech to text api like in this sample:
