TextToSpeechAsync

Last updated: 2026-05-11 20:08:13Download PDF

1. API Description

Domain name for API request: mps.intl.tencentcloudapi.com.

This API is used to convert text to speech asynchronously and supports long text to speech.

A maximum of 20 requests can be initiated per second for this API.

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2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

Parameter Name	Required	Type	Description
Action	Yes	String	Common Params. The value used for this API: TextToSpeechAsync.
Version	Yes	String	Common Params. The value used for this API: 2019-06-12.
Region	No	String	Common Params. This parameter is not required for this API.
Text	Yes	String	Text to convert to speech.
VoiceId	Yes	String	Voice ID.
TextLang	No	String	Text language. The default value is Chinese.
ExtParam	No	String	Extended parameters in the format of a JSON string. synExt (Object): Extended text to speech parameter. duration (Float): Synthesized audio duration, in seconds. Example: 5.2. sampleRate (Integer): Synthesized audio sample rate. Default value: 16000. Supported values: [8000,16000,22050,32000,44100]. pitch (Integer): -Pitch. Default value: 0 (original voice output). Value range: [-12, 12]. transExt (Object): Extended translation parameter. transInfo (Object). transDst (String): Target language, such as en. transRequirement (String): Translation requirements.

3. Output Parameters

Parameter Name	Type	Description
ErrorCode	Integer	Error code. 0 is returned if the request is successful.
Msg	String	Error message. success is returned if the request is successful.
TaskId	String	Task ID. Use this ID to query the result.
RequestId	String	The unique request ID, generated by the server, will be returned for every request (if the request fails to reach the server for other reasons, the request will not obtain a RequestId). RequestId is required for locating a problem.

4. Example

Example1 Text to Speech Example

Input Example

POST / HTTP/1.1
Host: mps.intl.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: TextToSpeechAsync
<Common request parameters>

{
    "Text": "Hello",
    "VoiceId": "s1_+DSBRZuGbfKlwsN1lV5OsriSYvOB3aSqqCsHH0LJ5BWHsmfmn13my4ki/QL+g+7RaRUWLhwPcEI6gtCTkA==",
    "TextLang": "zh"
}

Output Example

{
    "Response": {
        "ErrorCode": 0,
        "Msg": "success",
        "TaskId": "1300057393-DubbingAsync-0d810bb0-d78b-4545-b36e-eab983b40a6a",
        "RequestId": "0d810bb0-d78b-4545-b36e-eab983b40a6a"
    }
}

Example2 Translation and Text to Speech Example

Input Example

POST / HTTP/1.1
Host: mps.intl.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: TextToSpeechAsync
<Common request parameters>

{
    "Text": "Hello",
    "VoiceId": "s1_+DSBRZuGbfKlwsN1lV5OsriSYvOB3aSqqCsHH0LJ5BWHsmfmn13my4ki/QL+g+7RaRUWLhwPcEI6gtCTkA==",
    "ExtParam": "{\n    \"transExt\": {\n        \"transInfo\": {\n            \"transDst\": \"en\"\n        },\n        \"transRequirement\": \"Do not translate content inside quotation marks (including \\\"\\\" and “”) (keep Chinese as Chinese and English as English)\"\n    }\n}"
}

Output Example

{
    "Response": {
        "ErrorCode": 0,
        "Msg": "success",
        "TaskId": "1300057393-DubbingAsync-fc3f52cf-f5f2-453c-882c-8847e5b2fe2f",
        "RequestId": "fc3f52cf-f5f2-453c-882c-8847e5b2fe2f"
    }
}

5. Developer Resources

SDK

TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

Command Line Interface

Tencent Cloud CLI 3.0

6. Error Code

There is no error code related to the API business logic. For other error codes, please see Common Error Codes.