AI Voice Production Agent

Human voice, right words, every language.

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M
M

Quincy

Describe it. I’ll voice it.

Narrate my ad in French
Turn my script into a natural dialogue
Make a 15-second TikTok voiceover

Describe your idea

New workflow

Run
100%

Trusted by teams shipping voice at scale.

  • HeyGen
  • Hyundai Motor Group
  • Sierra
  • Bland
  • Johns Hopkins University

Text-to-Speech creates voice.
Onepin decides what ships.

We do the hard parts of voice.

Drop in your script. We handle the models, the cleanup, the pronunciations, and the checks.
Every line comes out production-ready.

Every top TTS model, in one place.
Your script flows into 30+ models behind one account,

routed line by line.

  • OpenAI
  • ElevenLabs
  • Google
  • Microsoft
  • AWS
  • Inworld
  • Deepgram
  • MiniMax
  • Naver Clova
  • Fish Audio
  • Rime
  • 20+

What happens to every script.

Step 1 · Clean

We clean the text first.

Normalizer

3042thirty forty-twoSt.SaintLuisSt.StreetNWNorth West

Addresses, prices, dates, and abbreviations make every TTS model stumble. We fix them in every language before synthesis, so the model pronounces your script the way you meant it.

  • The most common cause of misreads
  • Fixed before synthesis, in every language
  • About half of voice errors, gone
Step 2 · Pronounce

One wrong name ruins the take.

Names & brands
AbbVie/ˈæb.vi/
Versace/vɛrˈsɑːtʃeɪ/
Sade/ʃɑːˈdeɪ/
Siobhán/ʃɪˈvɔːn/
Måneskin/ˈmɔːneskin/
Hermès/ɛərˈmɛz/
Givenchy/ʒiˈvɒ̃ʃi/
Björk/bjœrk/
Saoirse/ˈsɜːrʃə/
Stromae/stʁɔˈma/
L7nnon/ˈlɛnõ/
Balenciaga/balenˈθjaɣa/
Rammstein/ˈʁamʃtaɪn/
Röyksopp/ˈrœʏksɔp/
Moët/moʊˈɛt/
Ng/ŋ̍/
Xóchitl/ˈsotʃitɬ/
Hoegaarden/ˈhuːɣaːrdə(n)/
AbbVie/ˈæb.vi/
Versace/vɛrˈsɑːtʃeɪ/
Sade/ʃɑːˈdeɪ/
Siobhán/ʃɪˈvɔːn/
Måneskin/ˈmɔːneskin/
Hermès/ɛərˈmɛz/
Givenchy/ʒiˈvɒ̃ʃi/
Björk/bjœrk/
Saoirse/ˈsɜːrʃə/
Stromae/stʁɔˈma/
L7nnon/ˈlɛnõ/
Balenciaga/balenˈθjaɣa/
Rammstein/ˈʁamʃtaɪn/
Röyksopp/ˈrœʏksɔp/
Moët/moʊˈɛt/
Ng/ŋ̍/
Xóchitl/ˈsotʃitɬ/
Hoegaarden/ˈhuːɣaːrdə(n)/
Medical & science
semaglutide/ˌsɛməˈɡluːtaɪd/
esomeprazole/ɛˌsoʊˈmɛprəzoʊl/
hydroxychloroquine/haɪˌdrɒksiˈklɔːrəkwiːn/
esophagogastroduodenoscopy/ɪˌsɒfəɡoʊˌɡæstroʊˌduːədɪˈnɒskəpi/
electroencephalography/ɪˌlɛktroʊɛnˌsɛfəˈlɒɡrəfi/
semaglutide/ˌsɛməˈɡluːtaɪd/
esomeprazole/ɛˌsoʊˈmɛprəzoʊl/
hydroxychloroquine/haɪˌdrɒksiˈklɔːrəkwiːn/
esophagogastroduodenoscopy/ɪˌsɒfəɡoʊˌɡæstroʊˌduːədɪˈnɒskəpi/
electroencephalography/ɪˌlɛktroʊɛnˌsɛfəˈlɒɡrəfi/
semaglutide/ˌsɛməˈɡluːtaɪd/
esomeprazole/ɛˌsoʊˈmɛprəzoʊl/
hydroxychloroquine/haɪˌdrɒksiˈklɔːrəkwiːn/
esophagogastroduodenoscopy/ɪˌsɒfəɡoʊˌɡæstroʊˌduːədɪˈnɒskəpi/
electroencephalography/ɪˌlɛktroʊɛnˌsɛfəˈlɒɡrəfi/
semaglutide/ˌsɛməˈɡluːtaɪd/
esomeprazole/ɛˌsoʊˈmɛprəzoʊl/
hydroxychloroquine/haɪˌdrɒksiˈklɔːrəkwiːn/
esophagogastroduodenoscopy/ɪˌsɒfəɡoʊˌɡæstroʊˌduːədɪˈnɒskəpi/
electroencephalography/ɪˌlɛktroʊɛnˌsɛfəˈlɒɡrəfi/

Mispronounce a brand, a drug, or a name and the whole line is unusable. It's the first thing generic TTS gets wrong. Our 4M word dictionary teaches how to say the hard words right, in any language.

  • Brand and product names
  • Complex medical and drug terms
  • Hard names, in any language
Step 3 · Validate

Every line, validated.

Your order has shipped.
96
Tu pedido está en camino.
97
ご注文の商品を発送しました。
95
주문하신 상품이 발송되었습니다.
98
Ihre Bestellung ist unterwegs.
96

Every line comes back scored: naturalness, word accuracy, clarity, pronunciation. Same bar, every language.

  • Four scores on every line
  • Scored against your bar, not ours
  • One bar across every language
Step 4 · Fix

Misses fix themselves.

Line 7“Siobhan” misread

Hold the gate, Siobhan.

We regenerate the line, or fix just the word that missed.

  • Fixes run themselves
  • Same model, new settings
  • You always get the best take

Free to start. Pro when you're shipping.

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