The one question you should always ask before booking a voice over artist is this: "Can you send me a custom sample of this exact script, recorded dry, in your actual studio?" That single request will tell you more than any demo reel, any profile on Voices.com, or any recommendation from a friend who doesn't speak Spanish.
I've been doing this for over 20 years. I've worked with Coca-Cola, Nike, Google, Ford, Netflix, Amazon, and hundreds of Fortune 500 brands. And the clients who have the smoothest projects are always the ones who asked that question before signing anything.
Why this question works when nothing else does
Demo reels lie. Not intentionally — but they're produced, polished, and often recorded under ideal conditions that won't exist when the actual job happens. A 2023 study by the Audio Engineering Society found that post-production processing can improve perceived voice quality by up to 40%. That means what you hear on a demo might be substantially different from what lands in your inbox.
When you ask for a custom sample of your actual script, you bypass all of that. You hear the real voice, in the real room, with the real equipment. No hiding behind compression. No covering weak interpretation with reverb.
And here's the thing: a professional will send it within hours. Someone who can't deliver under normal conditions will suddenly have excuses.
The demo reel problem nobody talks about
I've written about this before — why you should never judge a voice over artist by their website demos — but it bears repeating because the problem keeps happening. Voice over artists upload their best work. Sometimes their only good work. The demo you're evaluating might be four years old, recorded in a professional studio they no longer have access to, with direction from a producer who was actually good at their job.
A custom sample eliminates all variables except the one that matters: can this person deliver what you need, right now?
What "recorded dry" actually tells you
When I say "recorded dry," I mean without effects, without processing, without anything that disguises the raw recording. This is where you discover whether someone has a real studio or is recording in their closet with foam panels and hope. According to Nielsen, 47% of consumers say audio quality directly affects their perception of brand professionalism. That closet recording will cost you more than you saved.
But it also reveals interpretation. A dry recording has nowhere to hide. You hear the breath control. You hear the pacing. You hear whether they actually understood the script or just pronounced the words correctly.
Have you ever listened to something and felt vaguely uncomfortable without being able to say why? That's usually interpretation failure masked by production polish. The custom dry sample strips that mask away.
The Spanish-specific version of this question
If you're booking a Spanish voice over — and if you're reading this on my site, you probably are — the key question for booking Spanish voice over adds one more layer: "Can you record the sample in neutral Spanish, without regional markers?"
This tells you whether the artist actually knows what neutral Spanish is. Because plenty of voice over artists claim they can do neutral when what they really do is their regional accent with some words swapped out. A Colombian will still sound Colombian. A Mexican will still sound Mexican. Unless they've specifically trained to eliminate those markers, and most haven't.
I grew up in Argentina, which has one of the most distinctive accents in the Spanish-speaking world (that Rioplatense cadence is unmistakable to anyone who speaks Spanish). Learning to suppress it took years. Most people never bother because they assume their regional accent is "close enough." For pan-Latino campaigns targeting the 60 million Spanish speakers in the US, close enough is never enough.
What happens when you don't ask
I had a client come to me last year after a disaster with a voice they found on Voice123. The demo sounded perfect. Professional, warm, exactly what they wanted for their financial services e-learning module. They booked without asking for a custom sample.
What arrived was unusable. The recording quality was fine, but the interpretation was flat. The pacing was wrong — that's what happens when someone doesn't understand that Spanish scripts translated from English always need editing because Spanish runs 30% longer. And there were regional accent markers throughout that the client's native Spanish-speaking employees immediately noticed.
They had to re-record everything. The "cheap" voice cost them triple what my rate would have been, plus two weeks of delay. The Spanish voice over hiring essential question would have saved them all of it.
The platforms make this harder on purpose
Voice123, Voices.com, and similar platforms are designed to generate volume. They want you to receive 100 proposals, feel overwhelmed, and pick someone based on a profile and a demo. According to a 2024 industry report by SplashThemes, the average casting on these platforms receives 237 auditions. That's not helpful — that's noise.
The algorithm supposedly matches your brief to relevant talent. But here's the structural problem: clients don't actually know what they want when they fill out the brief. They write what sounds good, not what they need. They discover what they need during the process, guided by someone who knows what they're doing. And the talent? They fill their profiles with what they think they do well, or worse, what the algorithm rewards. Everyone claims neutral, characters, gaming, everything. The result is garbage in, garbage out.
(I've seen profiles claiming "native-level fluency" from people whose Spanish sounds like they learned it from Duolingo. The platform doesn't verify anything.)
The alternative that actually works
Skip the platform entirely. Find a professional whose work you've actually heard in real campaigns. Ask for a custom sample of your script. If they're good, they'll send it. If they're not, they'll make excuses.
And if you're hiring for Spanish, make sure whoever evaluates the sample actually speaks the language natively. A non-native cannot tell the difference between native and non-native — the subtleties are too complex. This isn't snobbery; it's acoustic reality. The same way you'd want a native English speaker to evaluate English voice over, you need native ears for Spanish.
The one question, expanded
Here's the full version of what to ask, written out so you can copy and paste it into your next inquiry:
"Before we proceed, could you please record a 30-second sample of the attached script? I'd like it recorded dry (no processing), in your actual recording space, using the equipment you'd use for the final delivery. If this is for Spanish, please record in neutral Latin American Spanish with no regional accent markers."
That's it. Anyone who does this professionally will understand immediately and comply. Anyone who doesn't will either ask a bunch of questions that reveal they don't know what you mean, or they'll disappear.
Both outcomes are useful information.
Why professionals don't mind this request
A real voice over artist has nothing to hide. My studio has Source Connect, professional equipment, and 20+ years of acoustic treatment decisions behind it. When someone asks for a custom sample, I record it and send it. Takes me fifteen minutes.
The sample also serves as a conversation starter. Maybe the client realizes they want something slightly different. Maybe the script needs adjustment. Better to discover that before the full session than during it, when the clock is running and everyone's stressed.
The timing question
Some clients worry this adds time to the process. It doesn't. A professional can turn around a sample in hours, sometimes faster. And it prevents the much larger time loss of having to re-record a bad session.
If speed matters — and it often does — the sample also tells you whether the artist can actually deliver quickly. Someone who takes three days to send a 30-second sample isn't going to hit your deadline for the full project.
Need a Spanish voice over for your next project? Get in touch and I'll get back to you within the hour.
