API reference

Video sound effects

POST/kling/v1/audio/video-to-audio

Body Parametersapplication/json

asmr_mode boolean

ASMR mode; enhances detail SFX for immersive scenes. true=on, false=off (default)

bgm_prompt string

BGM generation prompt

callback_url string

Callback URL invoked on task completion

external_task_id string

Custom external task ID for business-side correlation

sound_effect_prompt string

Sound effect generationPrompt

video_id string

ID of a video generated by Kling AI only videos from last 30 days with length 3.0–20.0s

video_url string

URL of the uploaded video provide exactly one of this or video_id video format only supportsMP4/MOV, file size ≤100M, video length 3.0–20.0 seconds

Responses

200 application/json

response-200 object

400 Bad request or validation failed application/json

response-400 object

properties

error* object

401 Missing or invalid API Key application/json

response-401 object

Request Body Example

2"asmr_mode": false,

3"bgm_prompt": "",

4"callback_url": "",

5"external_task_id": "",

6"sound_effect_prompt": "符合视频的人的声音",

7"video_id": "825406034503692376",

8"video_url": ""

Code Sample cURL

1curl -X POST "https://api.digislash.com/kling/v1/audio/video-to-audio" \

2-H "Authorization: Bearer <API Key>" \

3-H "Content-Type: application/json" \

4-d '{

5"asmr_mode": false,

6"bgm_prompt": "",

7"callback_url": "",

8"external_task_id": "",

9"sound_effect_prompt": "符合视频的人的声音",

10"video_id": "825406034503692376",

11"video_url": ""

12}'

Response

1▼{

2"code": 0,

3▼"data": {

4"task_id": "task_example_001"

5},

6"message": "success"