Listening / Recording speechRecognition audio

I built a simple application using speechRecognition

startListening() {
  let options = {
    language: 'en-US'
  }
  this.speechRecognition.startListening().subscribe(matches => {
    this.matches = matches;
    this.cd.detectChanges();
  });
  this.isRecording = true;
}

I would like to know if I can use recorded audio to perform speechRecognition or whether it is possible to save the audio that was used.