Text to speech
A Speech service feature that converts text to lifelike speech
Bring your apps to life with natural-sounding voices
Build apps and services that speak naturally. Differentiate your brand with a customized, realistic voice generator, and access voices with different speaking styles and emotional tones to fit your use case—from text readers and talkers to customer support chatbots.
Lifelike synthesized speech
Enable fluid, natural-sounding text to speech that matches the intonation and emotion of human voices.
Customizable text-talker voices
Create a unique AI voice generator that reflects your brand's identity.
Fine-grained text-to-talk audio controls
Tune voice output for your scenarios by easily adjusting rate, pitch, pronunciation, pauses, and more.
Flexible deployment
Run Text to Speech anywhere—in the cloud, on-premises, or at the edge in containers.
Access a wide variety of voices for every scenario
Engage global audiences by using 400 neural voices across 140 languages and variants. Bring your scenarios like text readers and voice-enabled assistants to life with highly expressive and human-like voices. Neural Text to Speech supports several speaking styles including newscast, customer service, shouting, whispering, and emotions like cheerful and sad.
Try Text to Speech with this demo app, built on our JavaScript SDK
Note: Your data will not be stored.
Learn how to build thisNote: Your data will not be stored.
Learn how to build this
Tailor your speech output
Fine-tune synthesized speech audio to fit your scenario. Define lexicons and control speech parameters such as pronunciation, pitch, rate, pauses, and intonation with Speech Synthesis Markup Language (SSML) or with the audio content creation tool.
Deploy Text to Speech anywhere, from the cloud to the edge
Run Text to Speech wherever your data resides. Build lifelike speech synthesis into applications optimized for both robust cloud capabilities and edge locality using containers.
Build a custom voice for your brand
Differentiate your brand with a unique custom voice. Develop a highly realistic voice for more natural conversational interfaces using the Custom Neural Voice capability, starting with 30 minutes of audio. Here are a few examples of organizations that are doing AI voice generation today:
Swisscom improves customer experiences with multilingual voice assistant
Swisscom used Speech service to create a natural sounding custom text-to-speech voice assistant with voice personas that are unique to Swisscom across English, French, German, and Italian.
AT&T delights customers with immersive experiences
AT&T is showcasing the power of its 5G network with an immersive experience that allows its customers to talk directly to Bugs Bunny*.
*LOONEY TUNES and all related characters and elements © & ™ Warner Bros. Entertainment Inc. (s21)
Progressive brings Flo directly to its customers
Progressive used custom neural voice to build a natural-sounding, virtual version of Flo to help customers with everything from getting a free car insurance quote to general insurance questions.
Fuel App Innovation with Cloud AI Services
Learn five key ways your organization can get started with AI to realize value quickly.
Comprehensive privacy and security
- The Speech service, part of Azure Cognitive Services, is certified by SOC, FedRAMP, PCI DSS, HIPAA, HITECH, and ISO.
- Your data remains yours. Your text data isn't stored during data processing or audio voice generation.
- View and delete your custom voice data and synthesized speech models at any time. Your data is encrypted while it’s in storage.
- Backed by Azure infrastructure, the Speech service offers enterprise-grade security, availability, compliance, and manageability.
Flexible pricing gives you the power and control you need
Pay only for what you use, with no upfront costs. With Text to Speech, you pay as you go based on the number of characters you convert to audio.
Guidelines for building responsible synthetic voices
Learn about responsible deployment
Synthetic voices must be designed to earn the trust of others. Learn the principles of building synthesized voices that create confidence in your company and services.
Obtain consent from voice talent
Help voice talent understand how neural text-to-speech (TTS) works and get information on recommended use cases.
Be transparent
Transparency is foundational to responsible use of computer voice generators and synthetic voices. Help ensure that users understand when they’re hearing a synthetic voice and that voice talent is aware of how their voice will be used. Learn more with our disclosure design guidelines.
Documentation and resources
Explore code samples
Check out the sample code
See customization resources
Customize your speech solution with Speech studio. No code required.
Built with Text to Speech
BBC innovates how it delivers trusted content
The BBC used Azure Cognitive Services and Azure Bot Service to create an end-to-end, customized digital voice assistant that captures its brand identity and establishes a conversational relationship with its broad audience.
Swisscom improves customer experiences with multi-lingual voice assistant
Swisscom used Speech service to create a natural sounding custom voice assistant with voice personas that are unique to Swisscom across English, French, German and Italian.
Motorola helps first responders access vital data
Motorola Solutions is helping police officers and other emergency first responders gain access to important information more quickly with a voice-powered virtual assistant.
Universal Electronics powers connected smart homes
Universal Electronics is helping manufacturers deliver voice-enabled navigation and control capabilities that work across smart home devices.
Cheetah Mobile expands international translation
Cheetah Mobile, a mobile internet company with app users in more than 200 countries and regions, is using Text to Speech to expand accessibility of its translation device and app to international markets.
