Azure Speech service Text to speech lag

Question

I am using the azure tts in javascript and i am facing an issue of latency .. I have to create a new instance of speechsynthesizer everytime i have to play audio from the speaker ..is there no way to stop audio from being played other than synthesizer.close() ?? below is the code i am using and its causing the audio to lag and its choppy at times ..could anyone point out why this is happening ..

function textToSpeech(txt){

window.tts_flag = 1;
var player = new SpeechSDK.SpeakerAudioDestination();
player.onAudioEnd = function (_) {
    window.tts_flag = 0;
  };
var audioConfig  = SpeechSDK.AudioConfig.fromSpeakerOutput(player);
const speechConfig = SpeechSDK.SpeechConfig.fromSubscription("");  

var synthesizer = new SpeechSDK.SpeechSynthesizer(speechConfig, audioConfig);
const complete_cb = function (result) {

  synthesizer.close();
  synthesizer = undefined;
};
const err_cb = function (err) {
  window.console.log(err);
  synthesizer.close();
  synthesizer = undefined;
};
synthesizer.speakTextAsync(txt,
  complete_cb,
  err_cb); 

}
if (!!window.SpeechSDK) {SpeechSDK = window.SpeechSDK;}

Answer 1

Hello @Kaushik Raju

I hope you have solved the issue. Since we did not receive your response and we were not able to reproduce the issue, we want to do a double check to see if you still need help. Please let us know if you are still blocked by this issue.

For your reference, this is the document for quick start:
https://learn.microsoft.com/en-us/azure/cognitive-services/speech-service/get-started-text-to-speech?tabs=script%2Cbrowserjs%2Cwindowsinstall&pivots=programming-language-javascript

JS code sample: https://github.com/Azure-Samples/cognitive-services-speech-sdk/tree/master/samples/js/browser

I hope this helps, please let us know if you have further concern, we are glad to help.

Regards,
Yutong