Model explained

What is MMAudio? A guide to generated video sound

What is MMAudio? It is a research model for generating audio from video, text, or both. It can suggest sound for visible action, but its output is generated—not a recording of what happened on set.

Mmaudio landing-page visual

Related workflows

The definition is a starting point; these pages address specific ways people explore the model and its outputs.

Can / cannot do

A plausible generated soundtrack is not evidence that an event produced those sounds, and it is not a finished mix by default.

Cannot recover missing location audio

MMAudio generates a new interpretation of a scene. It does not reconstruct the microphone signal that would have been captured during filming.

Workaround

Use original production audio when authenticity matters, and treat generated sound as a creative option.

Cannot guarantee exact sync

A result may suggest the right action while placing a transient too early or too late. Small timing errors are especially noticeable around impacts and cuts.

Workaround

Listen against the picture and edit the timing or replace an unsuitable effect.

Cannot promise a clean final mix

Generated audio may contain background textures, ambiguous sources, or sounds that conflict with dialogue and music.

Workaround

Review the track in context, then trim, layer, or mix it using an audio editor.

How it works

The workflow separates the information supplied to the model from the audio it predicts.

  1. 1

    Provide a scene or description

    Start with video, a text description, or both, depending on the workflow available. Video provides visual events and motion; text can specify a sound source or steer the desired character of the result.

  2. 2

    Generate a candidate soundtrack

    MMAudio predicts audio that fits the supplied conditions. For video-guided generation, the aim is sound associated with what appears on screen, not a transcription of a hidden original track.

  3. 3

    Listen and revise

    Play the candidate alongside the picture. Check whether events land at the right moments, whether the sound belongs in the depicted space, and whether another description or a conventional edit would work better.

What the model is useful for

Its value is in proposing scene-related sound quickly enough to evaluate creative directions; editorial judgment remains essential.

Sound ideas for silent footage

A clip with visible motion can provide context for a candidate soundtrack. This is useful when testing how an action might feel with sound, but the candidate still needs to be checked against each visible event.

Audio from a written idea

A description can communicate a source, an action, and a setting without footage. This makes text-conditioned generation relevant to early sound exploration, although wording may not determine every audible detail.

Direction from two inputs

Combining video and text can give the model both visual context and written guidance. For instance, the picture may show movement while the description emphasizes a particular material or atmosphere.

Who uses it

The right workflow depends on whether the goal is exploration, a precisely placed effect, or a faithful record.

Choose this when

A video editor needs ideas for a silent clip

Try a video-guided audio candidate, then review it against the timeline.

MMAudio can suggest scene-related sound, while the editor can judge whether each event and transition works in the actual cut.

Choose this when

A sound designer needs one exact impact

Compare generated candidates with an edited effect or a suitable recording.

A single deliberate cue may be easier to place and control in an audio editor than an entire generated soundtrack.

Choose this when

A documentary maker needs authentic source sound

Use verified recordings rather than generated audio as evidence of the event.

MMAudio produces plausible sound; it cannot establish what was truly audible at the filmed location.

Explore an audio workflow

Take the next step from the definition

If you want to explore audio-generation tools, follow the link and check the destination's current capabilities and access terms before starting. Keep the source video and review any generated result against your intended use.

Explore audio tools
  • Check available inputs at the destination.
  • Listen to results in the context of your scene.

FAQ

MMAudio is a research model for generating audio conditioned on video, text, or both. It is intended to produce sound that relates to the supplied scene or description, not to retrieve a scene's original recorded audio.

Video-guided generation can produce a candidate soundtrack for footage that has no usable audio. The result should be checked against the picture, particularly where impacts, footsteps, or scene changes make timing obvious.

No. A library offers existing recordings or designed effects to select and place, whereas MMAudio generates a new audio candidate from supplied conditions. An editor may prefer a library when an exact, repeatable cue is needed.

No. Generated audio is an interpretation, even if it sounds convincing and appears to match the action. Use documented recordings and other reliable evidence for factual claims about an event.

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