Kwaivgi Kling V2.6 Create Voice

Playground

Kling 2.6 Create Voice is a model can generate custom voice. Upload an audio file to create a custom voice that can be used with the voice control feature in V2.6 video generation. The audio should be clean, noise-free, with a single voice, and duration between 5-30 seconds. Built for stable production use with a ready-to-use REST API, no cold starts, and predictable pricing.

Features

Kwaivgi Kling v2.6 Create Voice

Kling v2.6 Create Voice is a lightweight helper endpoint for creating a reusable voice profile from an audio sample. The output is typically a voice identifier you can plug into Kling v2.6 “voice control” workflows (for example, generating dialogue in a video using your custom voice).

Use this when you want consistent narration or character speech across multiple Kling v2.6 generations, without re-uploading the same reference audio every time.

Key capabilities

Create a reusable voice profile from audio Upload or link to a voice sample and get back a voice reference you can re-use across runs.
Designed for Kling v2.6 voice control workflows The resulting voice can be used to drive speech generation in Kling v2.6 video endpoints that support custom voice IDs.
Simple, single-input interface Minimal setup: provide a clean reference clip and you’re ready to create a voice.
Supports common audio upload patterns Typically works with either a public URL or an uploaded audio file, depending on your integration.
Better consistency across scenes Re-using the same created voice helps keep a stable vocal identity across multiple generations.

Parameters and how to use

voice_url: (required) A URL (or uploaded file reference) pointing to the audio sample used to create the voice.

Media (Audio)

Provide a single voice sample that’s easy to learn from:

Use a clean, single-speaker clip (no background music, no overlapping voices).
Aim for consistent volume and minimal reverb/echo.
If you want a specific style (e.g., calm narrator, energetic host), choose a sample that clearly matches that delivery.

Commonly supported formats include: mp3, wav, m4a, ogg, aac.

After you finish configuring the parameters, click Run, preview the result, and iterate if needed.

Pricing

$0.035 per run

Notes

Consent matters: only create voices from audio you own or have explicit permission to use.
If the created voice sounds “off,” the fastest fix is usually a cleaner reference clip (single speaker, less noise, fewer artifacts).
Keep voice creation and voice usage consistent: once you have a voice ID, re-use it rather than re-creating new voices for the same speaker.

Kling v2.6 Pro (Text-to-Video) – Use created voice IDs to generate videos with dialogue, ambience, and SFX.
Kling v2.6 Pro (Image-to-Video) – Animate a still image into a video, optionally with voice-controlled speech.
Kling Text-to-Audio – Generate sound effects and audio from text prompts.
Kling Video-to-Audio – Generate or extract matching audio for an input video.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result


# Submit the task
curl --location --request POST "https://api.wavespeed.ai/api/v3/kwaivgi/kling-v2.6/create-voice" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}" \
--data-raw '{}'

# Get the result
curl --location --request GET "https://api.wavespeed.ai/api/v3/predictions/${requestId}/result" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}"

Parameters

Task Submission Parameters

Request Parameters

Parameter	Type	Required	Default	Range	Description
audio	string	Yes	-	-	The voice needs to be clean and free of noise, with only one type of human voice present, with a duration of no less than 5 seconds and no longer than 30 seconds.

Response Parameters

Parameter	Type	Description
code	integer	HTTP status code (e.g., 200 for success)
message	string	Status message (e.g., “success”)
data.id	string	Unique identifier for the prediction, Task Id
data.model	string	Model ID used for the prediction
data.outputs	array	Array of URLs to the generated content (empty when status is not `completed`)
data.urls	object	Object containing related API endpoints
data.urls.get	string	URL to retrieve the prediction result
data.has_nsfw_contents	array	Array of boolean values indicating NSFW detection for each output
data.status	string	Status of the task: `created`, `processing`, `completed`, or `failed`
data.created_at	string	ISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.error	string	Error message (empty if no error occurred)
data.timings	object	Object containing timing details
data.timings.inference	integer	Inference time in milliseconds

Result Request Parameters

Parameter	Type	Required	Default	Description
id	string	Yes	-	Task ID

Result Response Parameters

Parameter	Type	Description
code	integer	HTTP status code (e.g., 200 for success)
message	string	Status message (e.g., “success”)
data	object	The prediction data object containing all details
data.id	string	Unique identifier for the prediction, the ID of the prediction to get
data.model	string	Model ID used for the prediction
data.outputs	string	Array of URLs to the generated content (empty when status is not completed).
data.urls	object	Object containing related API endpoints
data.urls.get	string	URL to retrieve the prediction result
data.status	string	Status of the task: `created`, `processing`, `completed`, or `failed`
data.created_at	string	ISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.error	string	Error message (empty if no error occurred)
data.timings	object	Object containing timing details
data.timings.inference	integer	Inference time in milliseconds

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