How Dictation Handles Diacritics and Accented Letters
If you write in Spanish, French, German, Portuguese or any language with accents, you have probably wondered whether dictation can spell á, ñ, ü and ç correctly without you naming every mark out loud. The short version: modern voice to text handles diacritics far better than people expect, and the few misses are easy to fix.
Key takeaways
- Accents live inside words, so the model produces them from context, not from you spelling them.
- Common words in a supported language are almost always accented correctly.
- Names, brands and heavy language mixing are the weak spots, and a custom dictionary solves them.
- With BlaBlaType this all happens on-device, so accented and non-Latin text never leaves your Mac.
How dictation actually adds accents
The mental model that trips people up is thinking of dictation as a typewriter that hears one letter at a time. It does not work that way. A modern speech model listens to whole sounds and predicts the most likely word, then writes that word in its standard spelling. In most languages the accent is not optional decoration: it is part of the correct spelling of the word. So when the model decides you said the Spanish word for tomorrow, it writes mañana with the tilde already there, because that is simply how the word is spelled.
This is why you never have to say "a with an acute accent." You just speak naturally, and the diacritic comes along with the word. The same logic covers the French cedilla in garçon, the German umlaut in über, the Portuguese tilde in São and the circumflex in fête. If you want the bigger picture of which tongues are covered, our guide to what languages Mac dictation supports is a good companion to this one. These models are descendants of systems like Whisper, trained on huge amounts of multilingual audio, which is exactly why they learned accented spelling as a normal part of each language.
Where accents are strong, and where they slip
Accuracy is not uniform. It depends almost entirely on how common the word is and how clearly the model can tell which language you are speaking. Here is the honest breakdown of what tends to work and what tends to slip.
| Text type | Accent handling | Why |
|---|---|---|
| Everyday words in one language | Reliable | Common words have one standard accented spelling the model knows well. |
| Sentences that stay in one language | Reliable | The model locks onto a language and applies its accent rules consistently. |
| People and place names | Often missed | Names are not dictionary words, so the model guesses a plain spelling. |
| Brand names and jargon | Often missed | Unusual capitalization and accents are hard to predict from sound alone. |
| Mixed-language sentences | Uneven | The model favors one language per phrase, so the other one can lose accents. |
The pattern is clear: the more a word behaves like ordinary speech in a single language, the better the accent. Rare, invented or mixed text is where you may need to help the app along. If you write in a second language every day, the best dictation apps for non-native speakers are the ones that make that help easy.
Fixing the accents dictation gets wrong
You do not have to accept a stripped-down spelling of your own name. Two features close almost every gap: a custom dictionary that pins exact spellings, and on-device AI cleanup that fixes punctuation and casing around them. Here is how to get accented text right in practice.
Pick the right language model
Set the app to the language you are speaking. A model expecting Spanish will produce ñ and á naturally, where an English-only model would flatten them.
Add names and terms to a custom dictionary
Type your name, your company and any jargon once, with the exact accents. BlaBlaType then uses that spelling every time it hears the word, so Begoña and São never lose their marks.
Speak one language per burst
If you need to switch languages, pause and dictate each part separately. That keeps the model from applying the wrong accent rules mid-sentence.
Let AI cleanup polish the rest
On-device AI cleanup fixes punctuation, capitalization and stray filler around your accented words, so the final text reads like you wrote it by hand.
This same workflow is what makes accented dictation practical for real writing tasks, whether you are drafting an email in French or trying to dictate social media posts and captions on your Mac in a mix of languages.
Dictate in 90+ languages, accents included
BlaBlaType runs on-device, spells your accented words right, and lets you pin names in a custom dictionary. No card needed for the trial.
Download for macOSWhy on-device matters for accented and non-Latin text
Accents are common in exactly the writing people most want to keep private: personal notes, client work, drafts in a native language that is not English. With BlaBlaType, the whole pipeline runs on your Mac. The speech recognition models and the AI cleanup both process locally, so your audio and the finished text, accents and all, never leave the device. That is true whether you are writing á and ç or full non-Latin scripts, and it is the same on-device approach we cover in our take on being a private Superwhisper alternative for Mac. You can see the plans on the pricing page.
Mini glossary
- Diacritic
- A mark added to a letter that changes its sound or meaning, such as the acute accent in café or the tilde in niño.
- Accented letter
- A letter carrying a diacritic, like á, ü, ç or õ, treated by dictation as part of a word's correct spelling.
- Custom dictionary
- A user-defined list of exact spellings for names and jargon, so dictation always writes your terms with the right accents.
- On-device processing
- Running speech recognition and AI cleanup entirely on your own Mac, so audio and text are never uploaded to a server.
Frequently asked questions
Do I have to say the accent out loud when I dictate?
No. Good dictation adds accents from context, not from you naming them. When you speak a word like café or mañana in its language, the model recognizes the whole word and writes the correct accented form automatically.
Why does my dictation drop the accents on my name?
Names are the hardest case because they are not common dictionary words, so the model guesses the plain spelling. A custom dictionary fixes this: add your name once with its exact accents and the app will use that spelling every time.
Does dictation handle the German umlaut and the French cedilla?
Yes. Diacritics like the umlaut in über, the cedilla in garçon and the tilde in niño are part of the words themselves. A model trained on that language produces them correctly when you speak the language it expects.
Can I dictate accented letters with everything on-device?
Yes. BlaBlaType runs speech recognition entirely on your Mac using local Whisper and Parakeet models, so accented and non-Latin text is produced without uploading your audio. Nothing leaves the device.
Does mixing two languages in one sentence break the accents?
It can. Models pick one primary language per burst of speech, so heavy code-switching may flatten some accents. Dictating one language at a time, or adding key terms to a custom dictionary, keeps diacritics accurate.