 = SpeechSDK.AudioInputStream.createPushStream();
                getAudioStreamChunked(
                    audioFile,
                    (b) => {
                        audioStream.write(b);
                    },
                    () => {
                        audioStream.close();
                    }
                );
                return SpeechSDK.AudioConfig.fromStreamInput(audioStream, audioFormat);
            } else if (inputSourceFileRadio.checked) {
                alert('Please choose 