Speech to text
A Speech service 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
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Speech service, part of Azure Cognitive Services, is certified by SOC, FedRAMP, PCI DSS, HIPAA, HITECH, and ISO.
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View and delete your custom speech data and models at any time. Your data is encrypted while it's in storage.
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Your data remains yours. Your audio input and transcription data aren't logged during audio processing.
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Backed by Azure infrastructure, Speech service offers enterprise-grade security, availability, compliance, and manageability.
Comprehensive security and compliance, built in
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Microsoft invests more than USD1 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 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
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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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Businesses that trust Speech to Text
Motorola helps first responders access vital data using voice
Motorola Solutions is helping police officers and other emergency first responders gain faster access to important information with a voice-powered virtual assistant.
Documentation and resources
Get started
Browse the documentation
Create a 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
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It is a feature within the Speech service that accurately and quickly transcribes audio to text.
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Cognitive 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 Language services include Language Understanding, Text Analytics for natural language processing, QnA Maker for FAQ experiences, and Translator for language translation.