You can design an African Portuguese AI voice with one prompt
Describe the accent, gender, age and delivery in one sentence and Gradium returns a African Portuguese voice id you call from the API or the SDK. Every African Portuguese voice is built to order, so the age, gender and delivery are yours to specify rather than picked from a shelf.
Angolan Portuguese, Mozambican Portuguese, Luanda accent, Maputo accent and african portuguese all describe the same voice. Write it as African Portuguese in your prompt.
Hear it
- African Portuguese0:00
“Sinceramente, eu não tinha pensado nisso desse jeito, mas agora que você falou, explica muita coisa.”
The prompt
that produced it
Uma voz de mulher angolana de 36 anos, de Luanda, calma e clara, sotaque angolano, ritmo tranquilo.
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.
- Pitch2/5
- lowhigh
- Pace3/5
- slowfast
- Energy3/5
- calmboisterous
African Portuguese
in four styles
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 Full vowels, no reduction: it is the feature a mid-range read is most likely to soften, and the one a listener places African Portuguese by.
An African 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 African Portuguese it usually costs full vowels, no reduction.
An African 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 Syllable-timed rhythm, which a support brief tends to flatten.
An African 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 African Portuguese is no exception: push it and listen for whether full vowels, no reduction survives.
An African 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.
What makes African Portuguese
sound like itself
Each feature below is something the prompt has to encode, or something a careless prompt will accidentally undo.
- Full vowels, no reduction
- Angolan and Mozambican Portuguese preserve unstressed vowels that European Portuguese swallows, which makes it markedly clearer than the Lisbon standard.
- Syllable-timed rhythm
- Syllables carry more even weight than in either European or Brazilian Portuguese, flattening the stress contrast. The result is highly intelligible at speed.
- Trilled R
- The r is a full alveolar trill rather than the uvular Lisbon fricative or the Brazilian guttural h.
- Built to your spec
- This accent is served by Voice Design, so you describe the voice you want and it is generated for you on request.
Design your own custom African Portuguese voice
for your use case
Voice Design generates African Portuguese voices to order, so you specify the age, gender and delivery you need rather than choosing from a shelf. This is the difference between a voice library and a voice model: a library can only offer you what it already holds, while Voice Design builds the accent on request.
The prompt,
and where it goes wrong
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 | African 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 |
3 failure modes we hit repeatedly, and what fixes each one.
- Asking for reduced or swallowed vowels pulls the accent towards Lisbon and removes the clarity that distinguishes it.
- Keep the vowels full. Intelligibility is this accent's advantage.
- Requesting the Brazilian guttural r or the Lisbon uvular one conflicts with the alveolar trill actually used.
- Leave the r unmentioned and let the accent name select it.
- Requesting a stress-timed rhythm imports European Portuguese timing and flattens the even syllable weight.
- Keep the rhythm even. It is what makes the accent unusually clear at speed.
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.
Questions?
Answered
An African 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 African 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.
Full vowels, no reduction above all: Angolan and Mozambican Portuguese preserve unstressed vowels that European Portuguese swallows, which makes it markedly clearer than the Lisbon standard.
Describe it and Voice Design builds it. Voice Design generates African Portuguese voices to order, so you specify the age, gender and delivery you need rather than choosing from a shelf. One prompt returns a voice id you can call from the API straight away.
Those are names for the same territory, and this page covers them. African 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.
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.
Hear African Portuguese
in the studio
Every voice we ship clears blind listener comparison and an ELO ranking first, because roughly one candidate in a thousand has it. For African Portuguese, the feature that decides it is usually Full vowels, no reduction.
Paste the prompt, change the parts that matter to you, and generate. No recording, no casting, no licensing.