AI Video Generator With Sound: Models and How to Add Audio

As of September 2026, many AI video models generate sound in the same pass as the picture. That includes Google Veo 3.1, the Seedance 2 family, Kling 3.0 Omni, Wan 3.0 and MiniMax H3. To give an image-to-video clip sound, you can pick one of those models when you animate the photo. Or you can make the audio separately (a voiceover, a song) and either lip-sync the image to it or lay it under the clip in an editor.

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Which AI video generators make video with sound?

"Native audio" means the video model writes the soundtrack itself: footsteps, ambience, music, and sometimes spoken dialogue timed to the lips. Google's Veo documentation describes Veo 3.1 as generating 8-second videos with natively generated audio, and splits audio prompting into dialogue, sound effects and ambient noise. That's a useful way to think about prompting any audio-capable model.

These are the models on VdoBloom that return a clip with sound, and how audio is controlled on each:

Not every model has audio. Several older or budget options return silent clips, including Kling 3.0 (the non-Omni version), Hailuo 02, Runway Gen-3 and Gen-4 Turbo, and PixVerse v4 and v5. If sound matters, check the model's description in the picker before you generate. The model directory lists every model's capabilities.

How to add sound to an image-to-video clip

The question "image to video with sound" usually means one of three things. Each has a different route.

Route 1: the photo should come alive with natural sound

A beach photo with waves, a street scene with traffic, a person laughing. Use a native-audio model on the Image to Video tab, and write the sound into the prompt as well as the picture:

• Say what the space sounds like: "quiet cafe, low chatter, cups clinking".
• Name specific effects tied to actions: "her heels click on marble as she walks".
• For speech, put the line in quotes and say who says it: she smiles and says, "You made it." Keep lines short. A 5-second clip fits about one sentence.
• Say if you don't want music. Some models add a score unless you say "no music, natural sound only".

For a cheap test, use Wan 2.6 Flash (20 credits for 5 seconds at 720p) or Seedance 2 Mini (17 credits). Kling 3.0 Omni and Seedance 2 give more polished results. Seedance 2 also accepts reference audio clips in its settings panel, up to 30 seconds in total, if you want the model to follow a particular sound.

Route 2: the person in the photo should say your script

For a voiceover, a product explainer or a talking portrait, native audio isn't the best tool. You can't choose the voice, and one line per clip isn't enough. Do it in two steps:

1. Make the voice on the text-to-speech tab (ElevenLabs, Gemini or xAI voices, 5 to 6 credits per 1,000 characters, which is about one minute of speech). You can also upload your own recording.
2. Upload the photo and the audio to the Avatar tab, which generates a lip-synced video. Infinitalk at 480p costs about 1.2 credits per second of audio (36 credits for 30 seconds). Kling Avatar 2.0 at 720p costs about 3.2 per second (96 credits for 30 seconds) and accepts up to 5 minutes of audio.

The AI voice and lip-sync guide compares every avatar model and covers photo and audio tips in detail.

Route 3: the clip should have music or sound effects over it

For a slideshow feel, a product clip with a beat, or a silent clip you already made, generate the audio separately and combine the two in an editor such as CapCut, Premiere or DaVinci Resolve. On VdoBloom the music tab generates songs for 12 credits (MiniMax Music 2.6) or 6 credits (ACE-Step), with your own lyrics, style and BPM. VdoBloom doesn't currently have a button to merge an audio file into an existing video, so this last step happens in your editor.

An example audio prompt you can adapt

Put the picture and the sound in the same prompt, in the order they happen. For a 6 to 8 second image-to-video clip of someone in a kitchen:

The woman lifts the lid off the pot and steam rises; she leans in, smiles and says, "Dinner's ready." Sound: lid clatters on the counter, soft bubbling, a radio playing quietly in the background. No music score.

This works for three reasons. Every sound is tied to a visible action, so the model knows where to place it. The line of dialogue is short enough to fit the clip. And the last sentence tells the model what to leave out. If the voice sounds wrong, change the description of the speaker ("warm, low voice", "excited, fast"), not the line. If the audio is fine but the timing is off, shorten the action so the line has more room. Test on a cheap model at 480p first. Audio quality doesn't depend much on resolution, so you can judge the sound from the draft.

Native audio vs adding audio afterwards

A common mistake is joining several native-audio clips and keeping every clip's sound. The ambience and music change at every cut. When you join clips, mute the generated audio (or keep only important effects) and lay one continuous music or voice track over the whole edit. Our guide to making AI video longer covers the joining workflow.

Why is there no sound on my AI video?

• The model doesn't generate audio. This is the most common reason. Switch to one of the models in the table above.
• The audio toggle was off. On Vidu Q3 and Q3 Turbo, turn on "Enable Audio" before generating.
• The prompt gave the model nothing to hear. A still portrait with "subtle motion" may come back with near-silence. Describe sounds explicitly.
• The player is muted. Many players, including social feeds, start muted. Check the volume icon before you regenerate.
• The platform removed it. Some apps strip or replace audio on upload when it's flagged as copyrighted music. Generated music avoids most of these claims, but check each platform's rules.

Voice and face rules apply here too. Only lip-sync or voice a real person with their permission, and use your own photo or one from someone who agreed. Never use images of minors, and never create intimate or sexual content of real people. Cloning or imitating a public figure's voice for deceptive content isn't allowed. VdoBloom blocks minors and non-consensual content.

Frequently asked questions

Which AI video generator has sound for free?

Free options are limited everywhere. New VdoBloom accounts get 10 free credits with no card, enough for one short native-audio test such as a 4-second Seedance 2 Mini clip at 480p (6 credits). Longer or higher-resolution clips with sound need paid credits.

Can AI generate video with dialogue?

Yes. Veo 3.1, Seedance 2 and Kling 3.0 Omni can speak short lines you write in quotes, with lip movement generated to match. For anything longer than a sentence or two, or a specific voice, make the voice with text-to-speech and use a lip-sync avatar model instead.

How do I make a picture into a video with sound?

Upload the picture on the Image to Video tab, choose a native-audio model such as Wan 2.6 Flash, Kling 3.0 Omni or Seedance 2, and describe both the motion and the sounds in your prompt. To make the person talk, use the Avatar tab with a voice track instead.

Can I add sound effects to an AI video after it is generated?

Yes, in any video editor. Generate or source the effects, place them on the timeline under the clip and line them up with the action. If you want the sound effects synced automatically, regenerate the clip on a native-audio model and describe the effects in the prompt.

Why is Veo 3 audio not working?

Usually the player is muted, the clip was exported without its audio track, or the prompt described no sound. Veo 3.1 always generates audio. Describe dialogue, effects and ambience explicitly to get more of it.