Simple-to-Use API

Amazon Polly provides an API that enables you to quickly integrate speech synthesis into your application. You simply send the text you want converted into speech to the Amazon Polly API, and Amazon Polly immediately returns the audio stream to your application so your application can begin streaming it directly or store it in a standard audio file format, such as MP3.

Sampling rate Sample Code
"Hi. My name is Joanna." from boto3 import client
polly = client("polly", region_name="us-east-1")
response = polly.synthesize_speech(
        Text="Hi. My name is Joanna.",

Wide Selection of Voices and Languages

Amazon Polly includes dozens of lifelike voices and support for a variety of languages, so you can select the ideal voice and distribute your speech-enabled applications in many countries. In addition to Standard and Neural Text-to-Speech (NTTS) voices, Amazon Polly now offers Long-Form and Generative voices that improve speech quality for more natural and human-like voices.

Danielle, Gregory, and Ruth are American English voices available in long-form and neural variants. Ruth, Matthew, and Amy are also available in a generative variant.

All Polly voices
Language or Language variant Female Male
Arabic-MSA Zeina  
Arabic - Gulf Hala (Neural) Zayd (Neural)
Cantonese Hiujin (Neural)  
Catalan Arlet (Neural)  
Danish Sofie (Neural) Mads
Dutch Laura (Neural) Ruben
Dutch (Flemish) - Belgium Lisa (Neural)  
English - India Kajal (Neural)  
English - Ireland Niamh (Neural)  
English - New Zealand Aria (Neural)  
English - South Africa Ayanda  
English – UK

Amy (Generative) Brian (Neural)
  Amy (Neural)

Brian (Standard)

  Amy (Standard) Arthur (Neural)
  Emma (Neural)  
  Emma (Standard)  
English – US

Ruth (Generative) Gregory (Long-Form)
  Ruth (Long-Form) Gregory (Neural)
  Ruth (Neural) Stephen (Neural)
  Danielle (Long-Form) Matthew (Generative)
  Joanna (Neural) Matthew (Neural)
  Joanna (Standard) Matthew (Standard)
  Danielle (Neural) Justin (Neural)
  Salli (Neural) Justin (Standard)
  Salli (Standard) Joey (Neural)
  Kendra (Neural) Joey (Standard)
  Kendra (Standard)  
  Kimberly (Neural)  
  Kimberly (Standard)  
  Ivy (Neural)  
  Ivy (Standard)  
English - Wales   Geraint

English - Australia

Olivia (Neural) Russell
Finnish Suvi (Neural)  
French - Belgium Isabelle (Neural)  
French - Canada Gabrielle (Neural) Liam (Neural)
French - France Léa (Neural) Mathieu
  Léa (Standard) Rémi
German - Austria Hannah (Neural)  
German - Germany Vicki (Neural) Daniel (Neural)
  Vicki (Standard) Hans
Hindi - India Kajal (Neural)  
Icelandic Dóra Karl
Italian Bianca (Neural) Adriano
  Bianca (Standard) Giorgio
Japanese Kazuha (Neural) Takumi (Neural)
  Tomoko (Neural)
Takumi (Standard)
Korean Seoyeon (Neural)  
  Seoyeon (Standard)  
Mandarin Zhiyu (Neural)  
  Zhiyu (Standard)  
Norwegian Ida (Neural)  
Polish Ola (Neural) Jacek
  Ewa Jan
Portuguese - Brazil Vitória (Neural) Ricardo
  Vitória (Standard) Thiago 
  Camila (Neural)  
  Camila (Standard)  
Portuguese - Portugal Inês (Neural) Cristiano
  Inês (Standard)  
Romanian Carmen  
Russian Tatyana Maxim
Spanish - Mexico Mia (Neural) Andrés
  Mia (Standard)  
Spanish  - Spain Lucia (Neural) Sergio
  Lucia (Standard) Enrique
Spanish - US Lupe (Neural) Pedro (Neural)
  Lupe (Standard) Miguel
Swedish Astrid  
  Elin (Neural)
Turkish Filiz  
  Burcu (Neural)  
Welsh Gwyneth  

Synchronize Speech for an Enhanced Visual Experience

Amazon Polly makes it easy to request an additional stream of metadata that provides information about when particular sentences, words and sounds are being pronounced. Using this metadata stream alongside the synthesized speech audio stream, you can now build your applications with an enhanced visual experience, such as speech-synchronized facial animation or karaoke-style word highlighting.

Please visit the documentation to learn more about how to use Speech Marks. 

Optimize Your Streaming Audio

With Amazon Polly, you can stream all kinds of information through your application to users in near real time. You can also choose from various sampling rates to optimize bandwidth and audio quality for your application. Amazon Polly supports MP3, Vorbis, and raw PCM audio stream formats.

Sampling rate MP3 size   OGG size
PCM size
24.00 kHz Listen 19.31 kB 18.11 kB N/A
22.05 kHz Listen
19.33 kB 17.62 kB N/A
16.05 kHz Listen 16.22 kB 15.48 kB

100.68 kB

8.00 kHz Listen 13.26 kB 9.72 kB 50.34 kB

Adjust Speaking Style, Speech Rate, Pitch, and Loudness

Amazon Polly supports Speech Synthesis Markup Language (SSML), a W3C standard, XML-based markup language for speech synthesis applications, and supports common SSML tags for phrasing, emphasis, and intonation. Custom Amazon SSML tags provide unique options, such as the ability to make certain voices speak in a Newscaster speaking style. This flexibility helps you create lifelike speech that will attract and hold the attention of your audience.

To learn more, visit the Amazon Polly documentation on SSML tags.

Sample SSML
This is how I speak normally. (none)
I can also speak in a Newscaster style, as if I were reading a news article or delivering a flash briefing. <speak><amazon:domain name="news">I can also speak in a Newscaster style, as if I were reading a news article or delivering a flash briefing.</amazon:domain></speak>
I can speak in a higher pitched voice, or I can speak in a lower pitched voice. <speak>I can speak in a <prosody pitch="high">higher pitched voice</prosody>, or I can speak <prosody pitch="low">in a lower pitched voice</prosody></speak>
I can speak really slowly, or I can speak really fast. <speak>I can speak <prosody rate="x-slow">really slowly</prosody>, or  I can speak <prosody rate="x-fast">really fast</prosody></speak>
I can also speak very loudly, or I can speak very quietly. <speak>I can also speak <prosody volume="x-loud">very loudly</prosody>, or I can speak <prosody volume="x-soft">very quietly</prosody>. </speak>
I can whisper. <speak>I have a secret to tell you, I will whisper it to you.<amazon:effect name="whispered">'<prosody rate="x-slow"> <prosody volume="loud">I am not human.</prosody></prosody></amazon:effect>Can you believe it?</speak>

Newscaster Speaking Style

Amazon Polly can be used to synthesize speech as if it is were spoken by a TV or Radio newscaster. This can be a great way to read news articles or deliver flash briefing updates. The Newscaster style is currently available for the US English (en-US) Matthew and Joanna voices, British English (en-GB) Amy and US Spanish (es-US) Lupe voice using Neural text-to-speech. Listen to an audio sample in US English, British English or US Spanish.

Adjust the Maximum Duration of Speech

Amazon Polly enables you to automatically adjust the speech rate based on a maximum allotted amount of time you define with a feature called time-driven prosody. This is beneficial for many use cases, especially when it comes to localization.

For example, suppose you have US English speech embedded in your training video and want to localize this video into German. Let’s say you translate the text using Amazon Translate and voice it with Polly. It is essential that the localized German speech streams in corresponding frames of the video, so the German speech cannot be longer than the US English speech. You can use this feature to more easily facilitate the dubbing process.

Platform and Programming Language Support

Amazon Polly supports all the programming languages included in the AWS SDK (Java, Node.js, .NET, PHP, Python, Ruby, Go, and C++) and AWS Mobile SDK (iOS/Android). Polly also supports an HTTP API so you can implement your own access layer.

Speech Synthesis via API, Console, or Command Line

Amazon Polly can be accessed via the Polly API (and various language-specific SDKs), AWS Management Console, and the AWS command-line interface (CLI). You have full control over all the capabilities of Amazon Polly, whether you use the service through the console, the API, or the CLI.

Custom Lexicons

With Amazon Polly’s custom lexicons, or vocabularies, you can modify the pronunciation of particular words, such as company names, acronyms, foreign words and neologisms (e.g., “ROTFL”, “C’est la vie” when spoken in a non-French voice). To customize these pronunciations, you upload an XML file with lexical entries. For example, you can customize the pronunciation of Nguyen by providing a phoneme using this XML:


Brand Voice

Brand Voice is a custom engagement where you work with the Amazon Polly team to build an Neural Text-to-Speech (NTTS) voice for the exclusive use of your organization. Brand Voice allows you to differentiate your products and applications with a unique vocal identity in a wide variety of use cases, including Amazon Connect and Alexa Skills integrations. We work with you throughout the entire process to identify the persona, identify an actor or actress and record their speech, and ultimately build and train a model to produce the voice. The voice is then made available to your AWS account ID(s).

Listen to National Australia Bank Brand Voice »

Listen to Bank of New Zealand Brand Voice »

If you are interested in building a Brand Voice using Polly, please reach out to your AWS Account Manager or contact us for more information.

Contact center integrations

Amazon Connect

Amazon Polly is natively integrated with Amazon Connect, AWS’ cloud-based contact center solution that you use to set up and manage a customer contact center and provide reliable customer engagement at any scale. To learn more about adding text to speech prompts to your conversational interactive voice response system, please see how to use Polly voices within Amazon Connect.

Genesys Cloud CX

Genesys Cloud CX is a cloud contact center solution that unifies customers and agent experiences across multiple channels such as phone, text and chat. You can deploy your voice bots using any of the existing Polly voices. Please refer to Genesys Cloud documentation for more information.

Amazon Chime SDK

The Amazon Chime SDK is a set of real-time communications components that developers can use to quickly add audio calling, video calling, and screen sharing capabilities to their own web, mobile or telephony applications. The Amazon Chime SDK supports native integration with Amazon Polly, making it easy for builders to create applications that turn text and numerical data into lifelike speech and automatically play the output to a phone caller.

AWS Contact Center Intelligence (CCI)

Amazon Polly is used by several AWS CCI partners, so you can seamlessly create self-service customer service virtual agents, informational bots or application bots. Amazon Polly partners include Genesys, Vonage, and Accenture. To learn more about partners, visit AWS CCI and AWS CCI Partners page.

Learn more about Amazon Polly pricing

Visit the pricing page
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