Speech service supported regions

The Speech service allows your application to convert audio to text, perform speech translation, and covert text to speech. The service is available in multiple regions with unique endpoints for the Speech SDK and REST APIs.

The Speech portal to perform custom configurations to your speech experience for all the regions is available here: https://speech.microsoft.com

Keep in mind the following points when considering regions:

  • If your application uses a Speech SDK, you provide the region identifier, such as westus, when creating a speech configuration.
  • If your application uses one of the Speech service's REST APIs, the region is part of the endpoint URI you use when making requests.
  • Keys created for a region are valid only in that region. Attempting to use them with other regions will result in authentication errors.

Speech SDK

In the Speech SDK, regions are specified as a string (for example, as a parameter to SpeechConfig.FromSubscription in the Speech SDK for C#).

Speech-to-text, text-to-speech, and translation

The speech customization portal is available here: https://speech.microsoft.com

The Speech service is available in these regions for speech recognition, text-to-speech, and translation:

Geography Region Region identifier
Americas Central US centralus
Americas East US eastus
Americas East US 2 eastus2
Americas North Central US northcentralus
Americas South Central US southcentralus
Americas West Central US westcentralus
Americas West US westus
Americas West US 2 westus2
Americas Canada Central canadacentral
Americas Brazil South brazilsouth
Asia Pacific East Asia eastasia
Asia Pacific Southeast Asia southeastasia
Asia Pacific Australia East australiaeast
Asia Pacific Central India centralindia
Asia Pacific Japan East japaneast
Asia Pacific Japan West japanwest
Asia Pacific Korea Central koreacentral
Europe North Europe northeurope
Europe West Europe westeurope
Europe France Central francecentral
Europe UK South uksouth

If you use the Speech SDK, regions are specified by the Region identifier (for example, as a parameter to SpeechConfig.FromSubscription). Make sure the region is matching the region of your subscription.

If you plan to train a custom model with audio data, use one of the regions with dedicated hardware for faster training. You can use the REST API to copy the fully trained model to another region later.

Intent recognition

Available regions for intent recognition via the Speech SDK are the following:

Global region Region Region identifier
Asia East Asia eastasia
Asia Southeast Asia southeastasia
Australia Australia East australiaeast
Europe North Europe northeurope
Europe West Europe westeurope
North America East US eastus
North America East US 2 eastus2
North America South Central US southcentralus
North America West Central US westcentralus
North America West US westus
North America West US 2 westus2
South America Brazil South brazilsouth

This is a subset of the publishing regions supported by the Language Understanding service (LUIS).

Voice assistants

The Speech SDK supports voice assistant capabilities through Direct Line Speech in these regions:

Global region Region Region identifier
North America West US westus
North America West US 2 westus2
North America East US eastus
North America East US 2 eastus2
North America West Central US westcentralus
North America South Central US southcentralus
Europe West Europe westeurope
Europe North Europe northeurope
Asia East Asia eastasia
Asia Southeast Asia southeastasia
India Central India centralindia

Speaker Recognition

Speaker Recognition is currently only available in the westus region.

REST APIs

The Speech service also exposes REST endpoints for speech-to-text and text-to-speech requests.

Speech-to-text

For speech-to-text reference documentation, see Speech-to-text REST API.

The endpoint for the REST API has this format:

https://<REGION_IDENTIFIER>.stt.speech.microsoft.com/speech/recognition/conversation/cognitiveservices/v1

Replace <REGION_IDENTIFIER> with the identifier matching the region of your subscription from this table:

Geography Region Region identifier
Americas Central US centralus
Americas East US eastus
Americas East US 2 eastus2
Americas North Central US northcentralus
Americas South Central US southcentralus
Americas West Central US westcentralus
Americas West US westus
Americas West US 2 westus2
Americas Canada Central canadacentral
Americas Brazil South brazilsouth
Asia Pacific East Asia eastasia
Asia Pacific Southeast Asia southeastasia
Asia Pacific Australia East australiaeast
Asia Pacific Central India centralindia
Asia Pacific Japan East japaneast
Asia Pacific Japan West japanwest
Asia Pacific Korea Central koreacentral
Europe North Europe northeurope
Europe West Europe westeurope
Europe France Central francecentral
Europe UK South uksouth

Note

The language parameter must be appended to the URL to avoid receiving an 4xx HTTP error. For example, the language set to US English using the West US endpoint is: https://westus.stt.speech.microsoft.com/speech/recognition/conversation/cognitiveservices/v1?language=en-US.

Text-to-speech

For text-to-speech reference documentation, see Text-to-speech REST API.

Neural and standard voices

Use this table to determine availability of neural and standard voices by region/endpoint:

Region Endpoint
Australia East https://australiaeast.tts.speech.microsoft.com/cognitiveservices/v1
Brazil South https://brazilsouth.tts.speech.microsoft.com/cognitiveservices/v1
Canada Central https://canadacentral.tts.speech.microsoft.com/cognitiveservices/v1
Central US https://centralus.tts.speech.microsoft.com/cognitiveservices/v1
East Asia https://eastasia.tts.speech.microsoft.com/cognitiveservices/v1
East US https://eastus.tts.speech.microsoft.com/cognitiveservices/v1
East US 2 https://eastus2.tts.speech.microsoft.com/cognitiveservices/v1
France Central https://francecentral.tts.speech.microsoft.com/cognitiveservices/v1
India Central https://centralindia.tts.speech.microsoft.com/cognitiveservices/v1
Japan East https://japaneast.tts.speech.microsoft.com/cognitiveservices/v1
Japan West https://japanwest.tts.speech.microsoft.com/cognitiveservices/v1
Korea Central https://koreacentral.tts.speech.microsoft.com/cognitiveservices/v1
North Central US https://northcentralus.tts.speech.microsoft.com/cognitiveservices/v1
North Europe https://northeurope.tts.speech.microsoft.com/cognitiveservices/v1
South Central US https://southcentralus.tts.speech.microsoft.com/cognitiveservices/v1
Southeast Asia https://southeastasia.tts.speech.microsoft.com/cognitiveservices/v1
UK South https://uksouth.tts.speech.microsoft.com/cognitiveservices/v1
West Central US https://westcentralus.tts.speech.microsoft.com/cognitiveservices/v1
West Europe https://westeurope.tts.speech.microsoft.com/cognitiveservices/v1
West US https://westus.tts.speech.microsoft.com/cognitiveservices/v1
West US 2 https://westus2.tts.speech.microsoft.com/cognitiveservices/v1

Tip

Voices in preview are only available in these 3 regions: East US, West Europe and Southeast Asia.

Custom voices

If you've created a custom voice font, use the endpoint that you've created. You can also use the endpoints listed below, replacing the {deploymentId} with the deployment ID for your voice model.

Region Endpoint
Australia East https://australiaeast.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
Brazil South https://brazilsouth.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
Canada Central https://canadacentral.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
Central US https://centralus.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
East Asia https://eastasia.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
East US https://eastus.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
East US 2 https://eastus2.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
France Central https://francecentral.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
India Central https://centralindia.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
Japan East https://japaneast.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
Japan West https://japanwest.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
Korea Central https://koreacentral.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
North Central US https://northcentralus.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
North Europe https://northeurope.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
South Central US https://southcentralus.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
Southeast Asia https://southeastasia.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
UK South https://uksouth.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
West Europe https://westeurope.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
West US https://westus.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}
West US 2 https://westus2.voice.speech.microsoft.com/cognitiveservices/v1?deploymentId={deploymentId}

Custom Neural Voice

The following table details regional support for Custom Neural Voice features.

Feature Supported regions
Voice model hosting East US, West US 2, South Central US, Southeast Asia, UK South, West Europe, Australia East
Realtime Characters East US, West US 2, South Central US, Southeast Asia, UK South, West Europe, Australia East
Long Audio Characters East US, West Europe, UK South, Southeast Asia, India Central
Custom Neural Training East US, UK South

Long audio API

The Long audio API is available in multiple regions with unique endpoints.

Region Endpoint
East US https://eastus.customvoice.api.speech.microsoft.com
India Central https://centralindia.customvoice.api.speech.microsoft.com
Southeast Asia https://southeastasia.customvoice.api.speech.microsoft.com
UK South https://uksouth.customvoice.api.speech.microsoft.com
West Europe https://westeurope.customvoice.api.speech.microsoft.com