text_to_speech_example.py

import requests
import azure.cognitiveservices.speech as speechsdk

# This code should run in the backend of the mobile application
headers = {
    'Ocp-Apim-Subscription-Key': '<paste your code here>'
}

token_url = 'https://speechapicstest.cognitiveservices.azure.com/sts/v1.0/issuetoken'
response = requests.post(token_url, headers=headers)
access_token = str(response.text)

# Make sure we got back a JWT token
assert(access_token.startswith('ey'))

# This code should run in the frontend mobile application
speech_config = speechsdk.SpeechConfig(auth_token=access_token, region='westeurope')
speech_config.speech_synthesis_language = "en-US" 
speech_config.speech_synthesis_voice_name ="en-US-JennyNeural"

audio_config = speechsdk.audio.AudioOutputConfig(use_default_speaker=True)
speech_synthesizer = speechsdk.SpeechSynthesizer(speech_config=speech_config, audio_config=audio_config)

speech_synthesizer.speak_text_async("Hello world, I'm a synthetic voice.")