Describe the accent, gender, age and delivery in one sentence and Gradium returns a Standard Brazilian Portuguese voice id you call from the API or the SDK. This page also covers Brazilian Paulistano, Brazilian Carioca, Brazilian Nordestino, Brazilian Gaucho, Brazilian Mineiro, which the rewriter maps separately. The library already carries 26 Standard Brazilian Portuguese voices, and Voice Design covers whatever it does not.
Brazil Portuguese, pt-BR, Brazilian accent, neutral Brazilian Portuguese and standard brazilian portuguese all describe the same voice. Write it as Brazilian Portuguese in your prompt.
Hear it
“Respire fundo. Qual é o seu nome completo e a sua data de nascimento?”
A Brazilian Portuguese female voice, 30 to 40: mid pitch, steady natural pacing, medium energy and clear even resonance. Accent detail: open unreduced vowels, guttural r, palatalised t and d before i. Ideal for e-learning and instructional explainers.
A worked example: change any part of it and the voice changes with it. The four styles below show what moving pitch, pace, energy or purpose does to the same accent.
Age is the part of a voice a fixed library cannot vary. Written into the prompt, it comes back in the voice.
Um menino brasileiro de 10 anos, voz aguda e animada, sotaque carioca leve, falando rápido e rindo um pouco.
The prompt that produced the clip above.
A prompt is built from parts: the accent, the age, then pitch, pace, energy and what the voice is for. Change one part and you get a variation. These four are starting points to adapt, not finished prompts.
Everything to the middle. Watch Guttural R: it is the feature a mid-range read is most likely to soften, and the one a listener places Standard Brazilian Portuguese by.
A Brazilian Portuguese male voice, 30 to 45, for customer service: easy and unforced, with mid pitch, steady natural pacing, medium energy and a natural unforced resonance. Ideal for voice agents, assistants and dialogue that has to sound unscripted.
In colour: the 9 parts that make this style.
Pitch, pace and energy drop together. Moving one alone produces a voice performing gravity rather than carrying it, and in Standard Brazilian Portuguese it usually costs guttural r.
A Brazilian Portuguese male voice, 45 to 60, for customer service: clean, deliberate and precise, with low pitch, slow pacing, low energy and deep resonant timbre. Ideal for audiobooks, documentary and long-form narration.
In colour: the 9 parts that make this style.
Warmth belongs in the resonance rather than the energy. Keep an ear on Palatalisation of T and D before I, which a support brief tends to flatten.
A Brazilian Portuguese male voice, 35 to 50, for customer service: calm and crisp, with mid-low pitch, steady natural pacing, medium energy and warm rounded resonance. Ideal for reassuring walkthroughs and empathic de-escalation.
In colour: the 10 parts that make this style.
Check this by ear before committing. How much energy an accent carries before it reads as theatrical varies sharply, and Standard Brazilian Portuguese is no exception: push it and listen for whether guttural r survives.
A Brazilian Portuguese male voice, 25 to 35, for customer service: bright and punchy, with mid-high pitch, fast pacing, high energy and bright forward resonance. Ideal for advertising reads and social video.
In colour: the 9 parts that make this style.
Each feature below is something the prompt has to encode, or something a careless prompt will accidentally undo.
5 regional variants of Standard Brazilian Portuguese
Each is mapped separately, so naming it in the prompt is what gets it. They are covered here rather than on their own pages because the prompt craft is shared and only the phonetics differ.
Write it as Paulistano Brazilian Portuguese
Write it as Carioca Brazilian Portuguese
Write it as Nordestino Brazilian Portuguese
Write it as Gaúcho Brazilian Portuguese
Write it as Mineiro Brazilian Portuguese
Ready to call with no design step. Hear a few here, then open any in the studio or write a prompt of your own.
Adult · Female
A warm and smooth Brazilian female voice ideal for professional service and pleasant narration or even an enthusiastic conversation!
pYcGZz9VOo4n2ynhAdult · Female
A joyful and neighborly Brazilian adult voice that feels instantly familiar and welcoming.
24cfpJbYGXZLE39TYoung Adult · Female
A glossy, confident young voice with charismatic warmth and sparkle, chatting quickly, a bubbly support agent who makes callers feel special.
E8Zwjozrxupd4iQDAnother 22 Standard Brazilian Portuguese voices are in the catalogue. Sign in to hear them all, or design one to your own spec from a prompt.
The method behind the prompt: what each clause does, what breaks it, and what it was tested on.
Each row is one part of the prompt above and what it is set to here. Change a single row and you get a variation on this voice; change several and you get a different one.
| Clause | This prompt |
|---|---|
| Accent / localechanged | Brazilian Portuguese |
| Gender | male |
| Age range | 40 to 55 |
| Purpose | customer service |
| Character | calm and crisp |
| Pitch | mid-low pitch |
| Pace | steady natural pacing |
| Energy | medium energy |
| Resonance / timbre | warm rounded resonance |
| Applications | reassuring walkthroughs, empathic de-escalation and complex IT support |
2 failure modes we hit repeatedly, and what fixes each one.
Descriptor words do not transfer between languages. Energetic and bright travel intact, but most resolve to a different sound depending on the language they are read in, so a brief that produced a warm voice in one language will not produce the equivalent warmth translated into another. Write it in Portuguese terms rather than translating one that worked elsewhere.
Writing your first prompt? How to write a voice prompt covers every part a prompt can carry, and what each one changes.
A Brazilian Portuguese male voice, 40 to 55, for customer service: calm and crisp, with mid-low pitch, steady natural pacing, medium energy and warm rounded resonance. Ideal for reassuring walkthroughs, empathic de-escalation and complex IT support. Name the accent as Brazilian Portuguese, then set the age, the pitch, the pace, the energy and what the voice is for. Every accent Gradium maps is reached the same way.
Guttural R above all: Syllable-initial and doubled r is a back fricative close to an English h, so Rio approaches Hio and carro carries a breathy middle. This is the majority pattern in Rio, the Northeast and the city of São Paulo.
26 are ready to call today, with no design step: pick a voice id and go. Design one when you want an age, texture or persona of your own.
Those are names for the same territory, and this page covers them. Brazilian Portuguese is the wording Gradium maps, so that is what to name in the prompt, but a brief written in any of these terms lands in the same place. The regional variants section below names each one separately, with the label that gets it.
Both. Gender is its own part of the prompt, so it changes on its own: swap male for female and everything else holds. Same accent, same age, same delivery, different voice.
Yes. A designed voice is generated rather than cloned from a person, so there is no actor to license and no session to re-book when the script changes.
Every voice we ship clears blind listener comparison and an ELO ranking first, because roughly one candidate in a thousand has it. For Standard Brazilian Portuguese, the feature that decides it is usually Guttural R.
Open a voice, type your own script, and listen. Then write a prompt of your own to design a variant. No recording, no casting, no licensing.