Soniox App

Dictate executive correspondence by voice in Vietnamese

Q: How accurate is Soniox for Vietnamese compared to other providers?

Soniox achieves a 5.4 % word error rate for Vietnamese , outperforming Speechmatics, AWS, Azure, and 5 other providers in independent benchmarks. Lower word error rate means fewer mistakes in your transcripts.

Q: What writing system does Vietnamese use?

Vietnamese is written in the Latin script . The script uses diacritical marks to convey additional phonetic information. Soniox App handles Vietnamese text natively, including all script-specific characters.

Type with your voice in any app — up to 4× faster than typing. Built for executive assistants who need accurate, hands-free text input across 60+ languages. Works with Vietnamese and 60+ other languages.

mobileDownload on the App Store and Google Play

computerDownload for macOS and Windows

Download for macOS

Download for Windows

Free to start, with free credits added every week.

Say it once, it is written in Vietnamese

Typing is slow. Speaking is natural. Soniox App turns your voice into finished text as you speak. Get seamless Vietnamese transcriptions today.

Dictate emails and messages

Compose Vietnamese emails, chat messages, and documents by speaking naturally. Your words become polished text.

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Easier on your body

Reduce strain from extended Vietnamese typing sessions. Voice Typing lets you write comfortably for longer.

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Professional vocabulary

Soniox App handles specialized Vietnamese terminology and professional language with accuracy.

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Long-form writing

Write Vietnamese reports, articles, and documentation at the speed of thought. Voice Typing keeps up with natural speech.

Voice input that works everywhere in Vietnamese

Voice Typing works system-wide across all apps — no integrations or plugins needed. Handles Vietnamese across varieties like Northern Vietnamese (Hanoi) and Central Vietnamese (Hue).

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Natural speech input

Speak Vietnamese the way you normally talk. Soniox App turns natural speech into clean, punctuated text.

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60+ languages

Dictate in Vietnamese and 60+ other languages with seamless mid-sentence language switching.

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Works in any text field

Dictate Vietnamese into any app or text field — emails, documents, messages, search bars, and more.

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Choose your writing style

Set the tone for your Vietnamese text — formal, casual, or anything in between — and Voice Typing adapts the output accordingly.

Vietnamese at a glance

Key facts about Vietnamese.

Tiếng Việt

native name

95 million

speakers worldwide

country where spoken

Vietnamese transcription accuracy

Soniox App is powered by next-gen speech AI model developed inhouse by Soniox. The table below shows how Soniox AI performs on Vietnamese transcription compared to 8 other providers.

Provider	WER (Vietnamese)	Accuracy
Soniox#1	5.4%	94.6%
Speechmatics	8.9%	91.1%
AWS	11.2%	88.8%
Azure	11.2%	88.8%
AssemblyAI	12.1%	87.9%
Deepgram	14.2%	85.8%
Google	15.4%	84.6%
OpenAI	21.4%	78.6%
ElevenLabs	22.6%	77.4%

Word error rate (WER) measures how many words a speech-to-text engine gets wrong. Lower is better.

Soniox outperforms Speechmatics, AWS, Azure, AssemblyAI, Deepgram, Google, OpenAI, and ElevenLabs on Vietnamese transcription accuracy.

Soniox App works with Vietnamese and 60+ more languages

Soniox App transcribes and translates in Vietnamese and over 60 other languages with professional-grade accuracy.

Soniox App: The all-in-one AI speech toolkit

Smart Scribe, Translator, and Voice Typing cover three ways people work with speech.

Smart Scribe

Caption Vietnamese conversations live

See Smart Scribe arrow_forward

Translator

Translate Vietnamese and 60+ other languages live

See Translator arrow_forward

Voice Typing

Speak to type in Vietnamese

See Voice Typing arrow_forward

One app. Everything you do with voice in Vietnamese.

Get started free

Transcribe conversations in real time with Soniox.

mobileDownload on the App Store

computerDownload for macOS and Windows

Download for macOS

Download for Windows

Free to start, with free credits added every week.

Learn everything Soniox can do

Need more details? The Soniox Help Center provides complete documentation for the app, including guides, videos, screenshots, and feature walkthroughs.

Learn how to use Smart Scribe, Translator, Voice Typing, and more.

Explore the Help Center

Built for any use case

From clinical documentation to creative workflows, Soniox App is built for the situations where accurate transcription and translation matter most.

groups

Meeting transcription

Capture every decision and action item from meetings automatically.

school

Lecture transcription

Record complete lecture transcripts for study and accessibility.

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Medical dictation

Document clinical encounters hands-free with professional accuracy.

hearing

Hearing accessibility

Real-time captions for deaf and hard-of-hearing users in any setting.

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Travel translator

Communicate across language barriers with real-time spoken translation.

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Voice notes

Capture ideas and thoughts hands-free and turn them into searchable text.

Private by default

Soniox never stores your recordings and never uses your audio to train models. Everything is processed securely in real-time, then gone.

Vietnamese language trivia

Xin chào - that's how you say hello in Vietnamese.

History and background

history
Vietnamese was historically written in Chinese characters (Chữ Hán) and a modified form called Chữ Nôm.
history
The modern Latin-based script (Quốc ngữ) was developed by Portuguese missionaries in the 17th century.
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Vietnamese adopted the Latin alphabet as its official script in the early 20th century.

Distinctive features

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Vietnamese has six tones in the northern dialect, making it one of the most tonal languages in Southeast Asia.
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Vietnamese uses the Latin alphabet with an extensive system of diacritical marks to indicate tone and vowel quality.
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Vietnamese is an analytic language with no inflection — grammar is conveyed through word order and particles.

Dialects and varieties

Northern Vietnamese (Hanoi)Central Vietnamese (Hue)Southern Vietnamese (Ho Chi Minh City)

Official language in

Vietnam

Frequently asked questions about Vietnamese dictate executive correspondence by voice

How well does Soniox App handle Vietnamese as it is actually spoken day to day?arrow_downward

Very well. Vietnamese has 95 million speakers, mostly in Vietnam, and real-world Vietnamese is very different from the clean, slow speech most tools are trained on. Fast delivery, informal vocabulary, regional expressions, and overlapping voices in group settings are all things Soniox App is built to handle.

How accurate is Soniox for Vietnamese compared to other providers?arrow_downward

Soniox achieves a 5.4% word error rate for Vietnamese, outperforming Speechmatics, AWS, Azure, and 5 other providers in independent benchmarks. Lower word error rate means fewer mistakes in your transcripts.

What writing system does Vietnamese use?arrow_downward

Vietnamese is written in the Latin script. The script uses diacritical marks to convey additional phonetic information. Soniox App handles Vietnamese text natively, including all script-specific characters.

Does Soniox handle different Vietnamese dialects?arrow_downward

Vietnamese has several recognized varieties, including Northern Vietnamese (Hanoi), Central Vietnamese (Hue), and Southern Vietnamese (Ho Chi Minh City). Soniox is trained on diverse Vietnamese speech data, so it handles regional variation and dialectal differences effectively.

What language family does Vietnamese belong to?arrow_downward

Vietnamese belongs to the Austroasiatic > Vietic language family. Understanding these linguistic relationships helps Soniox deliver better accuracy across language families.

What is Soniox App?arrow_downward

Soniox App is a real-time speech app that turns spoken conversations into text and translations instantly. You can transcribe, translate, dictate, and summarize speech across 60+ languages — live, as people speak.

Is Voice Typing faster than typing?arrow_downward

For most people, yes. Speaking is typically up to 4× faster than typing, especially for longer text.

Where can I use Voice Typing?arrow_downward

You can use Voice Typing across apps and text fields — wherever you normally type — on supported platforms.

Is my audio or data stored?arrow_downward

No. Soniox App never stores your audio or uses it to train models. Text outputs are stored only to provide the service to you and are never used for model training.

Is Soniox App free to use?arrow_downward

Yes. Soniox App offers free usage to get started, with paid plans available for unlimited and advanced features.