title: unable to transcode data stream audio/flac -> audio/x-float-array
body: <p>I am using IBM's speech to text sessionless api with this endpoint- "<a href="https://stream.watsonplatform.net/speech-to-text/api/v1/recognize?model=en-US_NarrowbandModel" rel="nofollow noreferrer">https://stream.watsonplatform.net/speech-to-text/api/v1/recognize?model=en-US_NarrowbandModel</a>"; , and uploading flac file for transcribing into text, but getting an error 400 with this message "unable to transcode data stream audio/flac -> audio/x-float-array". Please let me know where Am I getting wrong.</p>