AWS Polly is a powerful text-to-speech service that allows users to convert written text into natural-sounding speech. With over 60 lifelike voices in multiple languages and dialects, AWS Polly can generate realistic speech that can be used for a variety of purposes, such as automated voice response systems, audiobooks, and even video game dialogues.

AWS Polly uses advanced deep learning technologies to produce high-quality speech that mimics the nuances and intonations of human speech. Users can customize the speed, pitch, and volume of the generated speech, as well as add pauses and other annotations to create more natural-sounding speech.

AWS Polly is also highly scalable and can handle large volumes of text-to-speech conversions in real-time. It integrates seamlessly with other AWS services, such as Amazon S3, AWS Lambda, and Amazon Lex, to enable developers to build sophisticated speech-enabled applications with ease.

Overall, AWS Polly is a powerful and versatile text-to-speech service that provides a simple and cost-effective way to add lifelike speech capabilities to your applications.


AWS Polly is an Amazon Web Services (AWS) text-to-speech service that uses advanced deep learning technologies to synthesize speech that sounds like a natural human voice. It allows developers to add text-to-speech functionality to their applications, services, and devices.

Importance of AWS Polly:

AWS Polly is an important tool for businesses to enhance the user experience of their applications and services. By adding natural-sounding speech, businesses can make their applications and services more accessible to users with disabilities or those who prefer audio content. Additionally, it can help businesses save money and time by eliminating the need for human voiceover talent.

Benefits of AWS Polly:

Some of the benefits of AWS Polly include:

  1. Natural-sounding speech: AWS Polly uses advanced deep learning technologies to produce speech that sounds like a natural human voice.
  2. Cost-effective: AWS Polly is a cost-effective way for businesses to add text-to-speech functionality to their applications and services, eliminating the need for expensive human voiceover talent.
  3. Multi-language support: AWS Polly supports a wide range of languages and accents, making it accessible to users around the world.
  4. Easy integration: AWS Polly is easy to integrate into applications and services using APIs, SDKs, and other tools.
  5. Customization options: AWS Polly offers customization options for voice, pronunciation, and intonation, allowing businesses to create a unique voice for their brand.

Features of AWS Polly

  • Text to Speech Conversion: AWS Polly provides a simple API for converting any text into high-quality speech audio in multiple languages and voices.
  • Voice Selection: AWS Polly offers a wide variety of natural-sounding voices, both male and female, in different languages and accents to choose from. Users can select the voice that best suits their needs.
  • Pronunciation Control: AWS Polly allows users to customize the pronunciation of specific words or phrases, ensuring that the output is accurate and natural-sounding.
  • Speech Marks: AWS Polly provides detailed information about the speech output, including timing, pitch, and volume, which can be used to create more engaging and interactive applications.
  • Speech Synthesis Markup Language: AWS Polly supports SSML, a markup language that allows users to control various aspects of speech synthesis, such as pronunciation, pitch, and volume. This enables users to create more sophisticated and human-like speech output.

Use Cases

E-learning and Online Education

AWS Cloud provides a platform for e-learning and online education through its services such as Amazon S3, Amazon EC2, Amazon RDS, Amazon CloudFront, and Amazon CloudWatch. With these services, educational institutions can store and retrieve data, run web applications, manage databases, and monitor their systems. AWS also offers a secure and scalable environment for online learning, making it possible to reach a wider audience.


AWS Cloud offers accessibility services for people with disabilities. It provides text-to-speech and speech-to-text services, as well as machine learning services for image and text recognition. These services can be used to create applications that help people with visual or hearing impairments to access digital content.

IVR and Call Centers

AWS Cloud provides a platform for Interactive Voice Response (IVR) and call centers through its Amazon Connect service. Amazon Connect makes it easy to set up and manage a cloud-based contact center that can handle voice and chat interactions. It also offers features such as automatic speech recognition (ASR) and text-to-speech (TTS) to improve the customer experience.

Gaming and Virtual Reality

AWS Cloud provides game developers with a scalable and secure platform to host and manage their games. With Amazon GameLift, developers can deploy, scale, and manage dedicated game servers in the cloud. AWS also provides services for virtual and augmented reality applications, including Amazon Sumerian, a platform for creating VR and AR experiences.

IoT and Robotics

AWS Cloud provides a platform for IoT and robotics applications through its IoT services and RoboMaker service. AWS IoT provides a secure and scalable platform for connecting and managing devices, while AWS RoboMaker provides a cloud-based development environment for building, testing, and deploying robotics applications. These services make it possible to build intelligent and connected systems that can interact with the physical world.

Getting Started with AWS Polly

Creating an AWS Account

To use AWS Polly, you first need to create an AWS account. If you don’t already have one, you can sign up for a free account at Once you have an AWS account, you can start using AWS Polly right away.

Setting up AWS Polly

To start using AWS Polly, you need to configure your AWS credentials. You can do this by creating an IAM user with the necessary permissions and then configuring the AWS Command Line Interface (CLI) or one of the AWS SDKs.

To create an IAM user and generate credentials, follow these steps:

  1. Log in to the AWS Management Console.
  2. Open the IAM console.
  3. Click on “Users” in the left-hand navigation pane.
  4. Click on the “Add User” button.
  5. Enter a name for the user.
  6. Select “Programmatic access” as the access type.
  7. Click on “Next: Permissions”.
  8. Select “Attach existing policies directly” and then select the “AmazonPollyReadOnlyAccess” policy.
  9. Click on “Next: Tags” and then “Next: Review”.
  10. Review the details and then click on “Create user”.
  11. Make a note of the Access Key ID and Secret Access Key that are displayed.

Using AWS Polly

AWS Polly provides a variety of ways to use its text-to-speech (TTS) capabilities. You can use the AWS Management Console, the AWS CLI, or one of the AWS SDKs to interact with the Polly API.

Here are the basic steps to use AWS Polly:

  1. Select a voice from the available options.
  2. Provide the text you want to convert to speech.
  3. Specify the output format (e.g., MP3, Ogg Vorbis, PCM).
  4. Use the appropriate API or tool to make the request.
  5. Receive the synthesized speech in the specified format.

You can also use AWS Polly to generate speech marks, which provide additional information about the synthesized speech, such as pauses, emphasis, and pronunciation. This can be useful for creating more natural-sounding speech.

Overall, AWS Polly is a powerful and flexible tool for adding text-to-speech capabilities to your applications and services.



AWS offers a pay-as-you-go pricing model, which means that you only pay for the services that you use. There are no upfront costs or long-term commitments. This model is perfect for businesses that have fluctuating demand for computing resources. The pricing is based on the usage of resources like compute, storage, and network.

Free Tier

AWS also offers a free tier for new customers to try out certain services for free. The free tier includes services like EC2, S3, RDS, and more. You can use these services within certain limits without any charge. This is a great way to get started with AWS and learn how to use the platform without incurring any costs.

Usage-based Pricing

AWS charges for its services on a usage-based pricing model. This means that you only pay for the services that you use and the amount you pay is based on how much you use them. The pricing is calculated based on the duration of service usage, the type of service, and the amount of resources consumed. This model is flexible and allows businesses to scale their resources up or down based on their needs without incurring any additional costs.


In summary, AWS Polly is an excellent text-to-speech service that enables developers to add natural-sounding voices to their applications. It has a wide range of voices in different languages and dialects and offers customization options to adjust the speech rate, pitch, and volume. Additionally, it integrates seamlessly with other AWS services, making it easy to incorporate into an existing architecture.

In conclusion, AWS Polly is a powerful tool that can enhance the user experience of any application by providing high-quality speech output. Its simple API and flexible pricing model make it accessible to developers of all levels, and its scalability ensures that it can handle any workload. Overall, AWS Polly is a valuable addition to any project that requires text-to-speech functionality.