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.
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:
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Comprehensive privacy and security
Documentation
The Speech service, part of Azure Cognitive Services, is certified by SOC, FedRAMP, PCI DSS, HIPAA, HITECH, and ISO.
View and delete your custom voice data and synthesized speech models at any time. Your data is encrypted while it’s in storage.
Training
Your data remains yours. Your text data isn't stored during data processing or audio voice generation.
Backed by Azure infrastructure, the Speech service offers enterprise-grade security, availability, compliance, and manageability.
Comprehensive security and compliance, built in
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Microsoft invests more than USD 1 billion annually on cybersecurity research and development.
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We employ more than 3,500 security experts who are dedicated to data security and privacy.
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Azure has more certifications than any other cloud provider. View the comprehensive list.
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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.
Get started with an Azure free account
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After your credit, move to pay as you go to keep building with the same free services. Pay only if you use more than your free monthly amounts.
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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
Get started
Explore code samples
Check out the sample code
See customization resources
Customize your speech solution with Speech studio. No code required.