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V1.1 Video to Sound Effects

All video to audio models

Analyzes a video and generates synchronized, royalty-free sound effects timed to visible actions. Returns the generated sound-effects audio track for commercial use.

Inference$ Commercial useFrom 5 credits per run

About V1.1 Video to Sound Effects

Analyzes a video and generates synchronized, royalty-free sound effects timed to visible actions. Returns the generated sound-effects audio track for commercial use.

sfxaudioeffects

Pricing

A run with the default settings costs 5 credits. The exact cost updates in the playground as you change settings, and you're only charged when you press Run. Failed runs are refunded automatically.

Inputs

video_urlfilerequired

The video to add sound to (public URL, or upload a file). The generated audio matches the video's length.

prompttextarea

Optional. Describe the kind of sound you want; it steers the generated audio for every scene. Leave empty to caption the video automatically.

segmentsjson

Optional. Split the video into time ranges, each with its own sound description. Leave empty to split into scenes automatically.

audio_formatselectdefault: "aac"

Format of the returned audio file: aac (default), mp3, wav, or flac. (The video with sound is always AAC.)

Options: wav, mp3, aac, flac

keep_speech_vocalbooleandefault: false

Keep the original video's speech/vocals. When on, the source audio is separated (music source separation) and the isolated vocals are kept as recorded, with the generated sound mixed in at a level matched to the voice; the rest of the original soundtrack (music, ambience) is dropped. Applies to the returned audio and video. When off (default), the result carries only the generated sound.

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