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Text to Speech

Convert text to speech to create more natural, accessible interfaces

Speak human, not robot

Build apps and services that speak to users naturally, improving accessibility and usability. Convert text to audio in near real time, play it back, and save it as a file for later use. Text to Speech is available in both Neural and Standard versions.

Applying the latest in digital speech innovation, the Neural Text to Speech capability makes the voices of your apps nearly indistinguishable from recordings of people. The natural inflection and clear articulation significantly reduce listening fatigue when interacting with AI systems. Use Neural Text to Speech to make interactions with chatbots and virtual assistants more natural and engaging, to convert digital text such as e-books into audiobooks, and to enhance in-car navigation systems.

Neural Text to Speech in action

English (US): Jessa

Sentence Voice Sample
The third type, a logarithm of the unsigned fold change, is undoubtedly the most tractable.
As the name suggests, the original submarines came from Yugoslavia.
This is easy enough if you have an unfinished attic directly above the bathroom.

English (US): Guy

Sentence Voice Sample
Susan Candiotti reports they've given up their trip.
Carol knows my lifestyle.
The seagrass fiber is tough, durable, and smooth.

Want to build this?

The Standard Text to Speech capability speaks to users in multiple languages. Choose from more than 75 voices in over 45 languages or locales, including options for male and female voices. Adjust parameters such as speed, pitch, volume, pronunciation, and additional pauses.

Standard Text to Speech in action

To see how speech synthesis works, click Play.*

Language Sample Text Voice Sample
English (US) An airport spokesman said more than 110 planes were damaged by hail.
Chinese (CN) 广告收入的比例高达90%以上
Japanese (JP) 皆様のご協力のたまものと
German (DE) Der Anstieg der Verbraucherpreise in der Eurozone verlangsamt sich weiter.
Spanish (ES) El alcalde de Santiago convoca a los medios para inaugurar dos semáforos.
Turkish (ES) Tren durduğu sırada vagonun ortasında bir patlama meydana geldi.

Want to build this?

Text to Speech with custom voice models

Do you need to give your voice agent a unique, recognizable brand voice? The Text to Speech voice customization feature makes it easy to create one-of-a-kind, voice-enabled apps, with no expertise required.

See it in action



Sample Text Voice Sample

Want to start building your own voice model?

Voice models made easy

To customize your voice agent, simply record and upload training data, and the service creates a unique voice font tuned to your recording. Start a proof of concept with a small amount of data. The system scales seamlessly as your data increases, enhancing the natural voice quality.

Consistent and integrated

Custom voice models are fully integrated with other Cognitive Services speech services. No coding is required, and you can easily deploy your customized voice model to the API.

Fast and secure

Through a unique API endpoint and the secure authentication management, you can plug in your voice fonts quickly across all platforms. Your models are under your control.

Explore a Speech Scenario

Intelligent kiosk

Speech services combined with Language Understanding enables apps and users to interact naturally. Use Speech to Text to capture a user’s question, Language Understanding to parse intent and formulate an appropriate reply, and Text to Speech to synthesize the text into a spoken response. Create conversational interfaces for various scenarios like banking, travel, and entertainment.

Commerce chatbot

Kereskedelmi csevegőrobotAz Azure Bot Service és a Language Understanding szolgáltatások együttes használatával a fejlesztők természetes nyelvi felhasználói felületet alakíthatnak ki banki, utazási, szórakoztatási és sok más szolgáltatáshoz. Egy szálloda recepciószolgálata például robottal javíthatja a hagyományos e-mailes és telefonos kommunikációt azzal, hogy az ügyfelet az Azure Active Directory használatával azonosítja, a Cognitive Services alkalmazásával pedig az ügyfél elhangzó és szöveges kéréseit tudja a kontextust figyelembe véve feldolgozni. A szóbeli utasítások feldolgozására pedig a beszédfelismerési szolgáltatás is alkalmazható.1237456
  1. Overview
  2. Flow


Together, the Azure Bot Service and Language Understanding service enable developers to create conversational interfaces for various scenarios like banking, travel, and entertainment. For example, a hotel’s concierge can use a bot to enhance traditional e-mail and phone call interactions by validating a customer via Azure Active Directory and using Cognitive Services to better contextually process customer requests using text and voice. The Speech recognition service can be added to support voice commands.


  1. 1 Customer uses your mobile app
  2. 2 Using Azure AD B2C, the user authenticates
  3. 3 Using the custom Application Bot, user requests information
  4. 4 Cognitive Services helps process the natural language request
  5. 5 Response is reviewed by customer who can refine the question using natural conversation
  6. 6 Once the user is happy with the results, the Application Bot updates the customer’s reservation
  7. 7 Application insights gathers runtime telemetry to help development with Bot performance and usage
"Microsoft Cognitive Services gives us a huge range of opportunities. It's a perfect match for us now and in the future, when we want to add more features to our app."

Jaan Apajalahti, CEO

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