Free Voice Text to Speech: Top Tools, APIs & Uses for Developers

1from google.cloud import texttospeech
2
3client = texttospeech.TextToSpeechClient()
4text = "Hello, this is a test of Google Cloud Text-to-Speech."
5input_text = texttospeech.SynthesisInput(text=text)
6
7voice = texttospeech.VoiceSelectionParams(
8    language_code="en-US",
9    name="en-US-Wavenet-D"
10)
11
12audio_config = texttospeech.AudioConfig(
13    audio_encoding=texttospeech.AudioEncoding.MP3
14)
15
16response = client.synthesize_speech(
17    request={"input": input_text, "voice": voice, "audio_config": audio_config}
18)
19
20with open("output.mp3", "wb") as out:
21    out.write(response.audio_content)
22    print('Audio content written to file "output.mp3"')
23

1import azure.cognitiveservices.speech as speechsdk
2
3speech_config = speechsdk.SpeechConfig(subscription="YOUR_SUBSCRIPTION_KEY", region="YOUR_REGION")
4
5audio_config = speechsdk.audio.AudioOutputConfig(filename="output.wav")
6
7synthesizer = speechsdk.SpeechSynthesizer(speech_config=speech_config, audio_config=audio_config)
8
9text = "Hello, this is a test of Microsoft Azure Text to Speech."
10
11result = synthesizer.speak_text_async(text).get()
12
13if result.reason == speechsdk.ResultReason.SynthesizingAudioCompleted:
14    print("Speech synthesized for text [{}]".format(text))
15elif result.reason == speechsdk.ResultReason.Canceled:
16    cancellation_details = result.cancellation_details
17    print("Speech synthesis canceled: {}".format(cancellation_details.reason))
18    if cancellation_details.reason == speechsdk.CancellationReason.Error:
19        print("Error details: {}".format(cancellation_details.error_details))
20

1import boto3
2
3polly = boto3.client('polly', region_name='YOUR_REGION')
4
5text = "Hello, this is a test of Amazon Polly."
6
7response = polly.synthesize_speech(
8    VoiceId='Joanna',
9    OutputFormat='mp3',
10    Text = text,
11    TextType = 'text'
12)
13
14with open('output.mp3', 'wb') as f:
15    f.write(response['AudioStream'].read())
16

1<speak>
2  Hello, <break time="3s"/> I am a text-to-speech engine.
3  <prosody rate="slow">This is a slower speech rate.</prosody>
4</speak>
5

1// Example using the Web Speech API (Browser-based, no API key needed)
2const synth = window.speechSynthesis;
3
4if (synth) {
5  const utterance = new SpeechSynthesisUtterance('Hello, world!');
6  synth.speak(utterance);
7} else {
8  console.error('Text-to-speech is not supported in this browser.');
9}
10

1# Example using gTTS (Google Text-to-Speech)
2from gtts import gTTS
3
4text = "Hello, world!"
5language = 'en'
6
7# Passing the text and language to the engine
8myobj = gTTS(text=text, lang=language, slow=False)
9
10# Saving the converted audio in a mp3 file named
11# welcome
12myobj.save("welcome.mp3")
13