Spanish scripts translated from English need editing. Every single time. I've been recording voice over for more than 20 years, and I have never — not once — received a translated script that worked perfectly as-is. The translation might be accurate. The grammar might be correct. The meaning might be preserved. And the script will still be wrong for recording.
The reason is mathematical. Spanish runs approximately 25-30% longer than English for the same content. According to research published by the Translation Journal and corroborated by localization data from IBM and Microsoft, Romance languages consistently expand when translated from English. A 30-second English spot becomes a 38-second Spanish spot if you translate it word for word. That's eight seconds you don't have.
The 30% problem nobody tells you about
When a brand hands me a translated script timed to 30 seconds, I already know what's coming. The script will be too long. The only question is whether they know it.
Some clients discover this during the session. We record the first take and it runs 42 seconds. Now we have a problem that should have been solved in pre-production. The translator did their job — they translated. But translation and localization are different disciplines, and localization for voice over is an even more specific skill. Have you ever tried to compress a 42-second read into 30 seconds without sounding like you're rushing to catch a flight? It doesn't work. The audience hears the compression even if they can't articulate why.
The fix is simple in theory: cut the script before the session. In practice, nobody wants to cut anything. Every word was approved by three departments and legal. Every phrase is there for a reason. But physics doesn't care about your approval process.
Good translation, bad voice over
A translation can be technically perfect and still fail as a voice over script. The translator's job is linguistic accuracy. The voice over artist's job is to make it sound natural when spoken aloud. These are different goals, and they conflict more often than you'd think.
Written Spanish and spoken Spanish follow different rhythms. A sentence that reads beautifully on paper can become a tongue-twister when delivered at pace. Subordinate clauses that work in print create breathing problems in audio. Formal constructions that preserve the original English structure sound stilted when spoken. And then there's the issue of neutral Spanish — if your translator is from Spain, they'll use vocabulary and constructions that sound strange to a Latin American audience, regardless of how grammatically correct they are. (I've seen scripts use "coger" when they meant "tomar" — fine in Madrid, problematic everywhere else in Latin America.)
The Globalization and Localization Association published data in 2023 showing that 73% of localization professionals consider voice over scripts a specialized category requiring adaptation beyond standard translation. Most brands don't know this. They assume a good translator produces a good script.
What actually needs editing
The cuts and changes fall into predictable categories. First: length. Something has to go. Usually it's adjectives, adverbs, or entire phrases that the English script used for emphasis but that the Spanish doesn't need. Second: flow. Sentences need restructuring so the voice artist can breathe naturally and emphasize the right words. Third: vocabulary. Words that are technically correct but regionally marked need to be replaced with neutral Spanish equivalents.
And fourth — the one nobody thinks about — is the call to action. English CTAs are often punchy and short. "Just do it." "Think different." "Got milk?" Spanish doesn't punch the same way. The rhythm is different, the emphasis lands differently, and a literal translation of a punchy English CTA often sounds awkward or incomplete in Spanish. This is where you need someone who understands both the language and the advertising.
Who should edit the script
The translator shouldn't edit their own work for voice over. They're too close to it, and their job was accuracy, not speakability. A separate pass is needed — ideally by someone who records voice over professionally and knows where the problems will appear.
I edit scripts all the time. When clients send me a translated script before the session, I mark it up. Here's where we need to cut three words. Here's where the sentence structure will cause a breathing problem. Here's where the vocabulary will sound Mexican when you wanted neutral. This takes 15 minutes and saves an hour of session time.
But most clients don't send the script in advance. They show up to the session with a script that was translated two weeks ago and approved yesterday, and they expect me to make it work. I can make it work. I've been doing this long enough that I can mentally edit while recording, cutting words on the fly, restructuring phrases in my head. But that's not ideal. The first take is usually the best, and when I'm simultaneously editing and performing, the interpretation suffers.
The budget trap
Here's where it gets ironic. Brands pay for professional translation. Then they pay for professional voice over. But they don't pay for the step in between: professional script adaptation for voice over. That step costs maybe $100-200 for a typical commercial script. Skipping it costs $500-1000 in extended session time, re-recordings, and post-production fixes.
The cheaper the original translation, the worse this problem gets. Machine translation is now good enough that some brands use it as a first pass. Google Translate and DeepL produce grammatically correct Spanish. But they produce written Spanish, optimized for reading, with no consideration for how it sounds when spoken. A Nielsen study from 2022 found that poorly localized audio in advertising reduced brand recall by 27% compared to professionally adapted content. The savings on translation get eaten by the losses in effectiveness.
Pre-session checklist
If you're producing Spanish voice over content, here's what should happen before I step into the booth. Someone needs to read the translated script out loud. Time it. If it runs long, cut it. If sentences feel awkward when spoken, rewrite them. If any vocabulary sounds regionally marked, replace it with neutral alternatives. And if nobody on your team speaks Spanish well enough to do this — which is usually the case — send the script to the voice artist in advance and ask for notes.
This isn't extra work. This is the work. The script is where most voice over problems originate, and for translated scripts, the problems are predictable and preventable.
The neutral Spanish dimension
Most brands targeting the US Latino market or pan-Latino audiences want neutral Spanish. The translation they receive is almost never neutral. Translators have accents too — not in their voice, but in their word choices, their constructions, their idioms. A Mexican translator writes Mexican Spanish. An Argentine translator writes Argentine Spanish. A Spanish translator writes Castilian Spanish, which Latin Americans find mildly ridiculous in advertising contexts.
Editing for neutral Spanish is a specific skill. It means stripping regional vocabulary, avoiding idioms that mark origin, and choosing constructions that sound natural across all regions. This can't be done by someone who learned Spanish as a second language. A non-native speaker can't hear the difference between "celular" (neutral), "móvil" (Spain), and "celu" (Argentina informal). They all mean cell phone. Only one works for pan-Latino advertising.
What happens when you skip this step
The voice over sounds rushed. The pacing feels unnatural. The emphasis lands on the wrong words because the sentence structure forced it. Regional vocabulary triggers subconscious reactions in listeners from different countries. And the brand ends up with audio that technically says the right thing but doesn't feel right.
I've recorded thousands of Spanish scripts translated from English. The ones that work were edited. The ones that don't work went straight from translator to teleprompter with no stop in between. This pattern holds regardless of budget, brand size, or production timeline. The physics of Spanish expansion doesn't make exceptions for Fortune 500 companies.
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