AI voice generator for ads and commercial spots
Performance marketers A/B test hooks weekly. Pay-as-you-go credits (~6.5 minutes per $1) make multiple ad voice variants affordable.
Use the same platform to build landing-page Android apps and voice the ad creative—unified billing for app + audio teams.
Ad script structure
Open with the offer, follow with proof, close with CTA. Keep 15s scripts under 40 words for clean pacing.
Export MP3 and hand off to motion designers or UGC editors without studio scheduling delays.
Hook-first scripts: the first three seconds decide the spend
Write the hook as a spoken sentence a stranger would stop for, not a brand statement. "Your website already works — it just cannot be installed" lands; "Introducing our platform" does not. Keep the hook under 12 words so it finishes before the thumb moves, then earn the next ten seconds with a specific promise: a number, a time saved, or a price.
A workable 30-second structure: hook (3s), problem in the listener's words (7s), demo or claim (12s), offer plus one call to action (8s). Generate it as one file if the read is continuous, or as separate files per beat if you expect to swap the offer — separate beats let you re-cut a campaign without paying to regenerate the whole spot.
Versioning: one script, five audiences, ten minutes
Paid social rewards volume of creative, not volume of budget. Take one script and produce variants that differ in the first line and the call to action only: a price-led hook, a time-saving hook, a fear-of-missing-out hook, a question hook, and a direct-address hook naming the audience ("Shopify owners: ..."). Same body, five openings, five ads to test.
Because generation is priced per minute of audio, a five-variant set of 30-second spots costs a few cents of audio. The expensive part of ad production has always been the studio booking and the re-record; remove that and testing five hooks instead of one becomes the default rather than a luxury.
Platform specs that stop a good ad being rejected
Deliver clean narration and let the platform's player do the rest. For Meta and TikTok, keep the voice track peaking around -3 dBFS with no long silence at the head — a 300 ms gap at the start reads as a slow ad. For YouTube skippable in-stream, put the brand and the offer inside the first five seconds, because that is the window before the skip button appears.
Give each platform its own cut rather than stretching one file: 15 seconds for Stories and Shorts, 30 for feed, 60 for in-stream only if the script earns it. Export at the platform's native sample rate and keep the MP3 as the master, so a later re-edit does not require regenerating the voice.
Frequently asked questions
How much does AI voice generation cost on APKBuild.org?
Pricing is unified: $1 = 100 credits and AI voice generation uses 15 credits per minute—about 6.5 minutes of standard voice per $1. Credits are shared with APK and AAB builds, so one wallet covers Android packaging and AI voice generation.
Do I need to disclose that an ad uses an AI voice?
Several platforms now label synthetic media automatically, and some jurisdictions require disclosure for synthetic speech in advertising. The safe approach is to follow the ad platform's current synthetic-media policy and your local advertising rules, and to keep the generated source files so you can prove provenance if a campaign is reviewed.
Can I run the same campaign in several languages?
Yes — 14 languages are available with male and female voices. Rewrite rather than translate: idioms and price phrasing do not survive word-for-word conversion. Generate each language separately, then have a native speaker check the 3-second hook only, which is where comprehension failures cost the most.
How fast can a new variant go live?
A 30-second spot generates in seconds at standard quality, and the file downloads immediately as MP3. Practically, a five-hook test set is a ten-minute job from script to upload, which is why the bottleneck in paid creative shifts from production to deciding what to test next.