Transcribe your recordings
support.microsoft.com › en-us › officeGo to Home > Dictate dropdown > Transcribe. In the Transcribe pane, select Upload audio. Choose an audio file from the file picker. Transcribe currently supports .wav, .mp4, .m4a, .mp3 formats. Transcription may take a while depending on your internet speed, up to about the length of the audio file.