speech to text voices

Speech to text

An AI Speech feature that accurately transcribes spoken audio to text.

Make spoken audio actionable

Quickly and accurately transcribe audio to text in more than 100 languages and variants. Customize models to enhance accuracy for domain-specific terminology. Get more value from spoken audio by enabling search or analytics on transcribed text or facilitating action—all in your preferred programming language.

High-quality transcription

Get accurate audio to text transcriptions with state-of-the-art speech recognition.

Customizable models

Add specific words to your base vocabulary or build your own speech-to-text models.

Flexible deployment

Run Speech to Text anywhere—in the cloud or at the edge in containers.

Production-ready

Access the same robust technology that powers speech recognition across Microsoft products.

Accurately transcribe speech from various sources

Convert audio to text from a range of sources, including  microphones ,  audio files , and  blob storage . Use speaker diarisation to determine who said what and when. Get readable transcripts with automatic formatting and punctuation.

Customize speech models to your needs

Tailor your speech models to understand organization- and industry-specific terminology. Overcome speech recognition barriers such as background noise, accents, or unique vocabulary.  Customize your models  by uploading audio data and transcripts. Automatically  generate custom models using Office 365 data  to optimize speech recognition accuracy for your organization.

Deploy anywhere

Run Speech to Text wherever your data resides. Build speech applications that are optimized for robust cloud capabilities and on-premises using  containers .

Fuel App Innovation with Cloud AI Services

Learn 5 key ways your organization can get started with AI to realize value quickly.

Comprehensive privacy and security

AI Speech, part of Azure AI Services, is  certified  by SOC, FedRAMP, PCI DSS, HIPAA, HITECH, and ISO.

View and delete your custom speech data and models at any time. Your data is encrypted while it's in storage.

Your data remains yours. Your audio input and transcription data aren't logged during audio processing.

Backed by Azure infrastructure, AI Speech offers enterprise-grade security, availability, compliance, and manageability.

Comprehensive security and compliance, built in

Microsoft invests more than $1 billion annually on cybersecurity research and development.

We employ more than 3,500 security experts who are dedicated to data security and privacy.

Azure has more certifications than any other cloud provider. View the comprehensive list .

Flexible pricing gives you the control you need

With Speech to Text, pay as you go based on the number of hours of audio you transcribe, with no upfront costs.

Get started with an Azure free account

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.

Documentation and resources

Get started.

Browse the  documentation

Create an AI Speech service with the  Microsoft Learn course

Explore code samples

Check out our  sample code

See customization resources

Explore and customize your voice-to-text solution with  Speech Studio . No code required.

Frequently asked questions about Speech to Text

What is speech to text.

It is a feature within the Speech service that accurately and quickly transcribes audio to text.

What are Azure AI Services?

AI Services  are a collection of customizable, prebuilt AI models that can be used to add AI to applications. There are a variety of domains, including Speech, Decision, Language, and Vision. Speech to Text is one feature within the Speech service. Other Speech related features include  Text to Speech ,  Speech Translation , and  Speaker Recognition . An example of a Decision service is  Personalizer , which allows you to deliver personalized, relevant experiences. Examples of AI Languages include  Language Understanding ,  Text Analytics  for natural language processing,  QnA Maker  for FAQ experiences, and  Translator  for language translation.

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