• New

Cadence

AI speech-to-marker tool for After Effects

Stop guessing when to sync your animations to your voiceover.

Cadence uses WhisperX AI to place a frame-accurate marker on every spoken word, automatically.

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  $29.99
  • Free Trial
Description

*Requires a Replicate account at replicate.com. Processing is pay-as-you-go at ~$0.005 per minute of audio. $1 minimum to get started.*

Cadence panel in After Effects

The old way

Syncing animations to a voiceover meant:

  • Placing markers manually by ear, never truly frame-accurate
    • Nudging keyframes repeatedly until timing "feels right"
      • Listening carefully to catch the exact moment each word is spoken
        • Repeating the process for every word you want to animate

          The result: tedious, imprecise work that gets in the way of the creative process.

          The Cadence way

          1. Select your audio layer 
            1. Click "Generate word markers"
              1. Done.

                  Cadence analyzes your audio with WhisperX AI and places a frame-accurate marker on every spoken word.

                Features

                • Smart labeling: Each marker shows the spoken word. Your timeline becomes a readable script.
                  • Multi-layer processing: Select multiple audio layers and process them all in a single operation.
                    • Marker sync: Copy markers to current timeline, parent layer, or parent timeline with one click.
                      • Non-destructive: Markers are placed on your audio layer. Your comp stays clean and organized.

                         

                        Frame-accurate markers generated on three audio layers simultaneously

                        WhisperX: millisecond-level audio alignment

                        Standard speech-to-text tools suffer from timestamp drift, where markers can be off by several frames or even seconds.

                        What sets WhisperX apart:

                        • Word-level forced alignment: Each marker is placed at the exact millisecond a word begins.
                          • Zero drift: Sync remains perfect from first word to last, even on hour-long audio files.
                            • Phonetic accuracy: Wav2Vec2 detects exact word boundaries with phoneme-level precision.
                              • 90+ languages: Frame-accurate precision across English, French, Spanish, German, Japanese, and more.

                                 

                                Animations triggered at the exact frame each word is spoken

                                Built for your workflow

                                1. Motion design & animation

                                Every word is already marked on your timeline. No more rewinding to find the right moment.

                                • Kinetic typography: animate text the instant words are spoken
                                  • Lip-sync animation: frame-accurate dialogue timing for character animation
                                    • Audio-reactive motion: trigger animations on specific words without manual spotting

                                      2. Educational & explainer videos

                                      Sync visuals to narration without listening on repeat.

                                      • Keyword highlighting: make key terms pop up at the exact moment they're mentioned
                                        • Diagram reveals: show process steps in perfect sync with voiceover
                                          • Infographic timing: graphs and stats appear precisely when the narrator references them

                                             

                                            Cadence animation example

                                            Pricing & cost

                                            Requires a Replicate account at replicate.com. Processing is pay-as-you-go at ~$0.005 per minute of audio.

                                            $1 minimum to get started, enough for about 3.5 hours of audio processing.

                                            System requirements

                                            • After Effects: CC 2018 or later
                                              • OS: Windows 10/11, macOS
                                                • Internet: Required for AI processing
                                                  • API: Replicate account (replicate.com)

                                                      

                                                    • 00:00 Intro & Opening the Panel
                                                    • 00:06 Entering Your API Key
                                                    • 00:14 Selecting Audio Tracks & Generating Markers
                                                    • 00:31 Reviewing the Markers
                                                    • 00:46 Syncing Text Layers to Audio

                                                    Discussions

                                                    Want to talk about it?

                                                    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 -

                                                    May 28, 2026

                                                    Initial release

                                                    Compatibility

                                                    After Effects

                                                    2026, 2025, 2024, 2023, 2022, 2021, 2020, CC 2019, CC 2018

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                                                    Updated: Oct 21, 2025 1:35 AM