Guide
A voiceover can carry a video ad or quietly wreck its pacing. The trouble is a VO script reads fine on the page and only reveals its problems once it's spoken over the footage — usually after you've already paid to find out.
The cheapest test costs nothing: read the script out loud against the cut, on the clock. Sentences that looked tight on the page run long when spoken, transitions that read smoothly turn clunky, and you immediately feel where the energy sags. If you stumble reading it, the voice actor will too — and so will the viewer. Trim until every line earns its seconds. This is the same discipline as the video ad script template, applied to the audio track specifically.
Here's the uncomfortable truth: most people meet your ad with the sound off. On the cold scroll, your clever VO opening is doing nothing — the on-screen text is carrying the hook. So the script's job splits in two: captions and overlay have to land the message silently, and the voiceover has to reward everyone who taps to unmute. Don't hide the hook in the audio where a muted viewer can never hear it.
Most VO problems aren't the words — they're the rhythm. A monotone read, a long setup before the first payoff, or a flat stretch in the middle is where attention quietly leaks out. The voice has to match the cut: punchy over fast footage, room to breathe over a demo beat. When you map where the energy dips, you are really reading the same shape as an attention curve — the goal is no dead zone between the hook and the ask.
To be clear about what can and can't be scored: PreTestAds analyzes the finished creative — the audio and visuals together — not a block of script text on its own. So the right move is to record a scratch VO (your phone is fine), lay it over the cut, and score that. The prediction reflects how the voiced video holds attention, because that's the thing the feed actually plays. Comparing a scratch read against a re-paced version tells you whether the change is worth a paid voice actor before you book one.
A predicted attention score tells you whether the voiced cut holds engagement through the hook, the middle, and the CTA window. It does not tell you it will convert — pre-testing is a screen that complements live A/B testing, never a substitute for it. Use it to kill the cuts that drag and promote the one that holds, then let the platform confirm the winner. The broader workflow is in ad creative analysis.
Record a scratch read, lay it on the cut, and score predicted attention — first analysis free, no credit card.
Test Your Voiceover Cut