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Tencent Real-Time Communication

CreateCloudTranscription

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Last updated: 2026-04-07 14:44:33

1. API Description

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

API description:
Enable the cloud transcription feature.

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: CreateCloudTranscription.
Version Yes String Common Params. The value used for this API: 2019-07-22.
Region Yes String Common Params. For more information, please see the list of regions supported by the product. This API only supports: ap-guangzhou, ap-hongkong, ap-singapore.
SdkAppId Yes Integer SdkAppId of TRTC, which is the same as the SdkAppId corresponding to the transcribed room.
RoomId Yes String RoomId of TRTC, which is the RoomId corresponding to the transcribed TRTC room. Note: The room ID type defaults to integer. If the room ID type is string, specify it via RoomIdType.
RoomIdType Yes Integer Room information RoomType must be the same as the RoomId type of the corresponding transcribed room. 0 indicates an integer type room ID, and 1 indicates a string Room Number.
TranscriptionParam Yes TranscriptionParam Parameters for transcribe service to join TRTC room.
AsrParam Yes AsrParam Parameters used by the ASR transcribe service.
TranslationParam No TranslationParam Translation parameters used for transcription.

3. Output Parameters

Parameter Name Type Description
TaskId String A unique identifier for the transcription task, generated by the Tencent Cloud server. The TaskID parameter is required for all subsequent query and stop requests.
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 Initiate a transcription task

Input Example

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

{
    "SdkAppId": 14000000,
    "RoomId": "295000",
    "RoomIdType": 0,
    "TranscriptionParam": {
        "UserId": "trtc_test_1",
        "UserSig": "eJjdaVgrxCdYrzkx*************BLATRT",
        "SubscribeList": [
            {
                "UserId": "user_1"
            }
        ],
        "MaxIdleTime": 30,
        "SendCustomMode": 2
    },
    "AsrParam": {
        "Lang": "16k_zh_en",
        "VadSilenceTime": 2000
    },
    "TranslationParam": {
        "TargetLang": [
            "en"
        ]
    }
}

Output Example

{
    "Response": {
        "TaskId": "-nE5dafd3iq51******41fnF8bp2NI65pgE.",
        "RequestId": "f98cb56d-2c70******b0-213ee0ef73ac"
    }
}

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

6. Error Code

The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.

Error Code Description
AuthFailure CAM signature/authentication error.
AuthFailure.UnauthorizedOperation CAM authentication failed.
AuthFailure.UnsupportedOperation Unsupported operation.
FailedOperation Operation failed.
FailedOperation.CTUnsupportMethod The cloud transcription method does not support this.
InternalError Internal error.
InternalError.CTInternalError Internal errors.
InvalidParameter Parameter error.
InvalidParameter.OutOfRange Parameter value is out of range.
InvalidParameter.SdkAppId SdkAppId is incorrect.
MissingParameter Missing parameter.
MissingParameter.ASRLang Missing required parameter: Lang (ASR model).
MissingParameter.AsrParam Missing required parameter: AsrParam.
MissingParameter.Region Region parameter missing.
MissingParameter.RoomId RoomId is missing.
MissingParameter.SdkAppId SdkAppId is missing.
MissingParameter.TranscriptionParam The TranscriptionParam parameter is required.
MissingParameter.UserId Missing UserId parameter.
MissingParameter.UserSig UserSig parameter missing.
UnsupportedOperation Unsupported operation.

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