Kling 2.6 Pro Text to Video: Clips with Voice and Sound
Last verified: October 19, 2026
Kling 2.6 Pro works best for short scenes where the sound matters as much as the picture: two people trading lines, a narrated product shot, a song, or rain and footsteps that have to hit with the action. From text alone, the model generates the visuals together with natural voiceover, sound effects and ambient atmosphere in a single pass. You don't get a silent clip that still needs dubbing. With Kling 2.6 Pro text-to-video, one written description becomes a scene with its soundtrack already in place.
The main reason to generate both at once is timing. The model aligns visual motion with sound rhythm as it generates, so the pacing of speech, ambient sound and on-screen action stays tightly coordinated. That avoids the disconnect you get when picture and sound are made separately. It pays off most when a sound belongs to a visible action, like a door closing, a step landing or a word being spoken.
The form has only a few controls: one prompt box that carries both picture and sound, a choice of clip length and frame shape, a switch that decides whether audio is generated, and a separate field for things you'd rather not see. Most of the work happens in the prompt. The settings mostly depend on where the clip will be published.
Explore more text to video
Kling 2.6 Pro settings at a glance
What goes in, what you can set and what comes back from each run.
Input
A text prompt of up to 2,048 characters
Video Duration
5 or 10 seconds
Aspect Ratio
1:1, 9:16, 16:9
Audio
Switch on or off, on by default
Output
1 video per run
How should you write a prompt for Kling 2.6 Pro?
Build the prompt in the five-part order
Kling's recommended prompt format runs in five parts. Scene describes the setting, Element the subject and Movement the action. Audio covers dialogue, singing, sound effects or pure music, and Other covers style, emotion and camera. Filling the Prompt box in that order keeps the audio from being tacked onto the end of a visual description. It also shows you which part to rewrite when only the sound or only the camera misses.
Spell English lines the way the voice reads them
When a character speaks English, type ordinary words in lowercase and save capitals for acronyms and proper nouns, as Kling's guidance for English speech asks. This matters most when a name has to be heard correctly, like a brand in a narrated spot, a city in a travel line or an abbreviation in a news-style read.
Name every sound and what makes it
The model can generate background ambience such as wind, ocean waves, street noise and traffic. It also generates object and action sounds such as breaking glass, footsteps, a knife slicing or a machine rumbling, and it can combine voice, background and effects. In the Audio part, give each sound a concrete source tied to something visible: write footsteps on wet cobblestones as she runs, not just background noise, so every effect matches an action in the shot. If a scene should carry only one effect, say so plainly, for example no speech and no music, so the request is clear.
How do you make a video with sound from a text prompt?
Four steps from a written scene to a downloaded clip.
One-pass audio or sound added afterwards
When to let Kling 2.6 Pro generate the soundtrack and when to build it separately.
| Criterion | Kling 2.6 Pro | Alternatives | Best For |
|---|---|---|---|
| Steps to a finished clip with sound | With Generate Audio on, voiceover, sound effects and ambience are generated in the same pass as the picture, so the clip is complete when the run ends. | Switching Generate Audio off and adding sound in separate post-production software is the traditional workflow of silent footage first and audio second, which Kuaishou says the model replaces. | Choose one-pass audio for drafts and social clips that ship as generated. Choose the silent route when you have to use a voice recording or music track you already have. |
| Timing between sound and action | The model aligns sound rhythm with visual motion as it generates, pacing speech, ambient sound and on-screen action together. | Kuaishou links laying sound onto silent footage with a disjointed, mismatched audio-video experience, which leaves the timing to be fixed by hand in the edit. | Pick native audio when effects and lines have to match specific actions. Pick separate sound when you plan to re-cut the clip and will re-time every sound in the edit anyway. |
Fixing common Kling 2.6 Pro problems
What usually goes wrong with sound and prompts, and what to change before the next run.
My video came out with no sound at all
The dialogue or song gets cut off before it finishes
Both characters sound alike, or a line comes from the wrong person
The prompt box won't accept any more text
Frequently Asked Questions
Can Kling 2.6 Pro follow a prompt that tells a short story?
Yes, as long as it fits in one clip. The model understands text descriptions, everyday spoken phrasing and complex storylines across different scenarios, and it turns them into audio and video that hang together logically. Keep the plot to one situation with a clear beginning and end, such as a question and its answer or a setup and a punchline, so it can finish before the clip does.
How long can a Kling 2.6 Pro video be?
The model generates clips up to 10 seconds long, which matches the longer of the two Video Duration options. For a longer piece, plan it as a sequence of scenes. Generate each one as its own clip using the same character and location descriptions, then join them in an editor.
What makes one generation cost more than another?
The credit cost of a run is calculated from the options you choose and shown above the Generate button once you're signed in. Two settings change it: Video Duration and Generate Audio, so check the figure again whenever you change either one. Enhance Prompt doesn't use credits.
Why do characters speak English when I wrote the dialogue in another language?
The model speaks only Chinese and English. Lines written in any other language are automatically translated into English for the voice, and the rest of the video is generated as usual. If the speech has to be in a particular language, write the dialogue in English or Chinese.