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python library for Amazon Polly
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import boto3 | |
import pygame | |
import os | |
import time | |
import io | |
class Polly(): | |
OUTPUT_FORMAT='mp3' | |
def __init__(self, voiceId): | |
self.polly = boto3.client('polly') #access amazon web service | |
self.VOICE_ID = voiceId | |
def say(self, textToSpeech): #get polly response and play directly | |
pollyResponse = self.polly.synthesize_speech(Text=textToSpeech, OutputFormat=self.OUTPUT_FORMAT, VoiceId=self.VOICE_ID) | |
pygame.mixer.init() | |
pygame.init() # this is needed for pygame.event.* and needs to be called after mixer.init() otherwise no sound is played | |
if os.name != 'nt': | |
pygame.display.set_mode((1, 1)) #doesn't work on windows, required on linux | |
with io.BytesIO() as f: # use a memory stream | |
f.write(pollyResponse['AudioStream'].read()) #read audiostream from polly | |
f.seek(0) | |
pygame.mixer.music.load(f) | |
pygame.mixer.music.set_endevent(pygame.USEREVENT) | |
pygame.event.set_allowed(pygame.USEREVENT) | |
pygame.mixer.music.play() | |
pygame.event.wait() # play() is asynchronous. This wait forces the speaking to be finished before closing | |
while pygame.mixer.music.get_busy() == True: | |
pass | |
def saveToFile(self, textToSpeech, fileName): #get polly response and save to file | |
pollyResponse = self.polly.synthesize_speech(Text=textToSpeech, OutputFormat=self.OUTPUT_FORMAT, VoiceId=self.VOICE_ID) | |
with open(fileName, 'wb') as f: | |
f.write(pollyResponse['AudioStream'].read()) | |
f.close() |
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