Script Lab
Each script is written to break something. Use the same one across every voice you are considering, then compare the recordings side by side rather than from memory.
What it tests: Does the voice handle acronyms, version numbers and compound technical terms without flattening them or over-enunciating?
Every request used to make a round trip to the origin server. Now the edge handles it. That means the API call that took 400 milliseconds from Sydney takes about 60. The trade-off is cache invalidation — and that's where most teams get into trouble. Let's look at why.
What it tests: Can the voice stay a beat behind on-screen actions and keep interface vocabulary intelligible?
Start on the Projects tab. Click New Project, give it a name, and choose a template — we'll use Blank. On the right you'll see the permissions panel. Add your team now, or invite them later from Settings. Once you hit Create, the workspace is live.
What it tests: Does the voice land a hook in the first three seconds without slipping into announcer delivery?
This costs eleven dollars. This one costs four hundred. And in the test I'm about to show you, one of them failed in under a minute. It wasn't the cheap one. Here's what actually happened.
What it tests: Are steps clearly separated, and are shortcuts and file names unmistakable?
Open the file you exported in step two. Press Control-Shift-E to bring up the export panel. Change the format to PNG, set the scale to two times, and leave transparency checked. Click Export, and save it into the images folder.
What it tests: Can the voice underplay a dramatic line and leave room for picture and sound design?
The last message came through at 2:14 in the morning. Six words, and then nothing. For thirty years, that was the entire record. Then a technician cleaning old tape drives found something nobody had catalogued.
What it tests: Does the voice sound relaxed and close in headphones, with natural asides?
Hey — welcome back. Quick note before we start: this one runs a little long, and I think it earns it. My guest spent nine years on a project that, by every reasonable measure, should not have worked. It did. Let's get into it.
What it tests: Can the voice deliver warm brand copy and a fast legal line in the same take?
Some things shouldn't take all afternoon. Book in thirty seconds, arrive when you like, and pay from your phone. That's the whole idea. Available in select cities. Service fees may apply; see site for details.
What it tests: Does the voice keep long policy sentences clear and calm without sounding like a compliance tape?
Any change to a production system must be approved in advance, documented in the change log, and reversible within thirty minutes. If a change cannot be reversed within that window, it requires sign-off from your director before it proceeds.
What it tests: Is the greeting warm on first listen and still tolerable on the fiftieth?
Hi, thanks for calling Northfield Dental. I can book an appointment, reschedule an existing one, or answer a question about your visit. What can I help with today?
What it tests: Can the voice sound patient and trustworthy while handling account details and a mild apology?
I'm sorry about that — I can see the charge you're describing. Let me read it back: seventy-four dollars, posted on the fourth. I'll start a refund now, and you'll get an email confirmation within a few minutes. Is there anything else on the account I should check?
What it tests: Does every option stay distinct and intelligible through a narrowband phone line?
For account balances, press one. For payments, press two. For technical support, press three. To repeat these options, press nine. Or stay on the line and I'll connect you with the next available representative.
What it tests: Does the voice support comprehension — clear enumeration, real pauses, no condescension?
There are three forces acting on the object at this moment. Gravity pulls it down. The surface pushes back up. And friction resists the direction of travel. Change any one of those, and the outcome changes. Let's take them one at a time.
What it tests: Is the first second strong, and does clarity hold over music on a phone speaker?
Stop resizing images by hand. Drop the folder here, pick one preset, and you're done — all of them, correct dimensions, under a second. I've been doing this the slow way for years. Save this before you forget.
Related: How to choose an AI voice · Voice tests · Voice Finder