Speech Service documentation
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Get Started
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Speech-to-text
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Recognize speech with a microphone
Use the Speech SDK to recognize speech from a microphone and transcribe the output.
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Recognize speech from an audio file
Use the Speech SDK to recognize speech from a single file and transcribe the output.
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Asynchronous recognition from blob
Use our REST service to asynchronously recognize speech from files stored in Azure Blob Storage.
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Language support
Learn more about programming and spoken language support for speech-to-text.
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Pricing
Learn more about the costs associated with speech-to-text.
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Read the docs
Learn how to add speech recognition to your apps, tools, and products. Includes concepts, tutorials, API reference, and release notes.
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Text-to-speech
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Synthesize speech to a speaker
Use the Speech SDK to synthesize speech to an audio output, like a speaker.
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Synthesize speech to an audio file
Use the Speech SDK to synthesize speech to an audio file.
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Speech Synthesis Markup Language
Use Speech Synthesis Markup Language to fine tune pitch, prosody, and speaking rate of your audio output.
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Language support
Learn what languages are supported for speech synthesis.
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Pricing
Learn more about the costs associated with text-to-speech.
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Read the docs
Learn how to add speech synthesis to your apps, tools, and products. Includes concepts, tutorials, API reference, and release notes.
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Intent recognition
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Recognize speech, intents, and entities
Use the Speech SDK and Language Understanding (LUIS) to recognize speech, intents, and entities.
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Language Understanding (LUIS) documentation
Learn more about the Language Understanding Service (LUIS) and Natural Language Processing (NLP).
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Language Understanding (LUIS) portal
Build natural language into apps, bots, and IoT devices.
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Speech translation
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Translate speech-to-text from microphone
Use the Speech SDK to translate speech-to-text from a microphone.
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Translate speech to multiple target languages
Use the Speech SDK to translate speech to multiple target language outputs.
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Translate speech-to-speech
Use the Speech SDK to translate speech to speech.
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Language support
Learn more about programming and spoken language support for speech translation.
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Pricing
Learn more about the costs associated with speech translation.
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Read the docs
Learn how to add speech translation to your apps, tools, and products. Includes concepts, tutorials, API reference, and release notes.
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Conversation transcription
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Overview
Learn more about Conversation Transcription and how to integrate it into your products.
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Transcribe a real-time conversation
Learn how to transcribe a conversation in real time.
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Asynchronously transcribe conversations
Learn how to asynchronously transcribe conversations, poll for status, and download the outputs.
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Language support
Learn more about programming and spoken language support for conversation transcription.
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Pricing
Learn more about the costs associated with Conversation Transcription.
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Voice assistants
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Overview
Learn more about what it takes to build a voice assistant.
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Integrate with Bot Framework
Learn more about the Bot Framework, Direct Line Speech Channel, and more.
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Use Custom Commands
Learn to easily build robust command and control voice applications, so that users can complete tasks by using their voice.
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- Support
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Speech-to-text
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Customization
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Speech-to-text
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Improve accuracy with Phrase Lists
Use Phrase Lists in the Speech SDK to improve recognition accuracy.
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Improve accuracy with Tenant Models
Generate custom models with Office365 data to optimize speech recognition accuracy for organization-specific terms.
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Improve accuracy with Custom Speech
A set of online tools that allow you to evaluate and improve Microsoft's speech-to-text accuracy for your apps, tools, and products.
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Language support
Learn more about programming and spoken language support for Custom Speech.
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Pricing
Learn more about the costs associated with Custom Speech.
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Text-to-speech
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Improve synthesis with SSML
Use Speech Synthesis Markup Language to fine tune pitch, prosody, and speaking rate of your audio output.
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Improve synthesis with Custom Voice
Build a recognizable, one-of-a-kind voice for your Text-to-Speech apps with your speaking data available.
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Improve synthesis with Audio Content Creation
Use the Audio Content Creation tool to fine-tune your synthesized voice outputs.
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Get access to Custom Neural Voices
This is a gated feature that allows you to create a Custom Neural Voice. Learn more about access and restrictions.
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Pricing
Learn more about the costs associated with Custom Voice.
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Speech-to-text
- Scenarios
