Sound Prompter

Easily create sound effects and music (.wav file) from layers in your composition with AI. All running locally on your machine.


Powered by blace.ai

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  $49.99
Description

Sound Prompter for After Effects and Premiere Pro

Core Features

  • Create SFX from your video
  • Realtime creation, 5s audio take 5s to create
  • Adds output directly to your composition and saves file on disk

Processing happens fully locally, running on our high-performance C++ blace.ai engine.
Your data never leaves your machine.

20,000+ customers trust our products, from freelance creators to enterprise teams.

Supports Apple Silicon and NVIDIA GPUs (Windows) for hardware acceleration.


Features

⏩ Play video clips to hear the plugin-generated sound!

High-quality Audio Generation

The locally running AI analyzes your clip and creates sound effects (and optionally music within a few seconds).

New: Text-To-Sound in seconds

Create stereo sound effects and music within seconds, based on text input. Generation of a 10s audio clips takes 2s on a mid-class GPU.

Helicopter passing by from left to right

rock beat played in a treated studio, session drumming on an acoustic kit

a grenade explosion

blackbird song, summer, dusk in the forest

Synced to video

Use the Text+Video mode to sync the generated sound effects to your video's content.

_copy.wav file output

Created sound effects are automatically added to your composition and stored as _copy.wav files on disk.

Works on any type of footage

Real-world footage, 3D renderings, motion design work or AI generated clip: Sound Prompter will deliver.

Easy to setup

  1. Note: The unregistered version will contain some gaps and beeps in the output. Register your license to remove this.
  2. Apply the effect to the layer you want to create the SFX for. Can be a subcomp or an adjustment layer to let multiple layers participate in the SFX creation.
  3. Click Add Text Input to add a mask and link it in the "Positive Prompt" field. Then you can change the name of the mask to modify the prompt. Add another Text Input and link in "Negative Prompt" to supress certain keywords (e.g. music).
  4. Click Generate Audio. On the first invocation this might take up to a minute to initialize as the AI model needs to be loaded and the video frames have to be rendered. Once this is done you can iterate on it with different prompts and settings much faster.
  5. Once the computation is done the created audio file (_copy.wav) is written to <home>/Blace Plugins/Sound Prompter Generated Audio and added to your composition above the effect layer.
  6. Premiere: Generated audio files are not added automatically to the timeline, but have to be dragged manually from <home>/Blace Plugins/Sound Prompter Generated Audio into the timeline. We recommend to add the output folder to Favorites in the Media Browser for quick access.
  7. Note: ~18GB VRAM are needed to run the Text+Video XXL model.


System Requirements

Windows with NVIDIA GPU >= 12GB Windows with non-NVIDIA GPU >= 8GB Apple Silicon with MacOS Sequoia or newer and >= 32GB RAM Other MacOS
very slow

Documentation



Newsletter & Socials

Discussions

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Head over to r/aescripts to chat with fellow users about this product.

Need Support?

Please open a support ticket to be connected directly with the author of this product

Version History

1.2.59 -

Jun 17, 2026

Better feedback about out-of-memory situations.

1.2.58 -

Jun 8, 2026

Fix crash that sometimes occurred on very long renders.

1.2.57 -

May 8, 2026

Compatibility Release.

1.2.54 -

Apr 10, 2026

Better reporting of out-of-memory errors.

1.2.53 -

Mar 27, 2026

Add Text-To-SFX mode for stereo audio generation from prompts in seconds.

1.2.52 -

Mar 18, 2026

Compatibility update.

1.2.51 -

Mar 3, 2026

Improved feedback about out-of-memory situations.

Introduce Stop Processing button. This can be used to cancel long running computations immediately.

1.2.49 -

Feb 16, 2026

Fix initialization bug which occured on some systems.

1.2.47 -

Feb 11, 2026

- Premiere Pro support (please check documentation for limitations)
- MacOS support
- small bug fix regarding parameter handling

1.1.46 -

Feb 2, 2026

- initial release

Compatibility

After Effects

2026, 2025, 2024

Premiere Pro

2026, 2025

EULA

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Updated: Oct 21, 2025 1:35 AM