Vietnamese Text to SpeechTiếng Việt
Generate natural-sounding Vietnamese audio via REST API. 10 voices, Latin script, free 10K chars/month — no credit card.
Chào mừng đến với Audexum — tổng hợp giọng nói cho nhà phát triển và người sáng tạo nội dung.
Try this in the playground →- Full tonal Vietnamese — all 6 tones (ngang, huyền, sắc, hỏi, ngã, nặng) rendered correctly
- Vietnamese Latin diacritics rendered correctly — a complex orthography many models fail
- Vietnam's fast-growing tech sector needs affordable Vietnamese TTS
- One of the few commercial APIs with production-grade Vietnamese synthesis at developer pricing
Google Cloud TTS supports Vietnamese at $16/1M. ElevenLabs does not specifically list Vietnamese. Audexum is €8/1M with all 6 tones rendered and a free tier.
Vietnamese e-commerce and ed-tech
Vietnam's rapidly growing e-commerce sector (Tiki, Shopee VN, Lazada VN) and ed-tech market need affordable Vietnamese TTS for product notifications, accessibility, and learning apps.
Audexum integrates as a single REST endpoint — no SDK required. Send your Vietnamese text, receive WAV audio. The free tier (10K chars/month) covers prototyping; paid plans start at €4/month for 100K characters.
First Vietnamese audio in 60 seconds.
The Vietnamese language code is vi — pass it as the lang parameter.
curl -X POST https://audexum.com/api/synthesize \
-H "Authorization: Bearer $AUDEXUM_KEY" \
-H "Content-Type: application/json" \
-d '{
"text": "Chào mừng đến với Audexum.",
"voice": "F1",
"lang": "vi"
}' \
--output output.wavimport requests
response = requests.post(
"https://audexum.com/api/synthesize",
headers={
"Authorization": f"Bearer {AUDEXUM_KEY}",
"Content-Type": "application/json",
},
json={
"text": "Chào mừng đến với Audexum.",
"voice": "F1",
"lang": "vi",
},
)
response.raise_for_status()
with open("output.wav", "wb") as f:
f.write(response.content)Full API reference: audexum.com/docs. All 10 voices (M1–M5, F1–F5) support Vietnamese.
Vietnamese TTS — same price as English.
No language surcharge. Vietnamese is included on every plan at the same rate as any other language.
PAYG credits never expire. All plans include STT (dictation) at no extra cost. Full pricing details →
Does Audexum correctly render all 6 Vietnamese tones?+
Yes. Vietnamese has 6 lexical tones (ngang/flat, huyền/falling, sắc/rising, hỏi/dipping, ngã/creaky-rising, nặng/falling-constricted). All 6 are rendered correctly — incorrect tones change word meaning entirely in Vietnamese.
Is Vietnamese on the free tier?+
Yes. Vietnamese is available on the 10,000 char/month free plan — no credit card required.
Which TTS services support Vietnamese?+
Google Cloud TTS supports Vietnamese at $16/1M. ElevenLabs does not specifically list Vietnamese. Audexum is €8/1M with correct tonal synthesis and a free tier — the most accessible option for Vietnamese TTS.
Can I use Vietnamese TTS for a Vietnam-market mobile app?+
Yes. The REST API returns WAV audio from UTF-8 Vietnamese text. Vietnamese diacritics are standard Unicode — no special encoding required on the caller side.
Audexum supports 33 languages.
Switch language with one parameter — same API endpoint, same pricing.
See the full 33-language list in the API docs or on the multilingual TTS guide.
Try Vietnamese TTS free.
10,000 characters per month, no credit card. First Vietnamese WAV in your terminal in 60 seconds.
Questions? [email protected]