Accurately convert
Vietnamese AU files to text
Sonix automatically transcribes your Vietnamese AU files to text in minutes. Access industry-leading artificial intelligence and the days of manually transcribing your Vietnamese AU files are long gone. Vietnamese speech to text: Sonix has been independently reviewed the most accurate Vietnamese automated transcription, translation, and subtitling platform.
Free to start — no credit card required.
Thousands of Sonix customers convert their Vietnamese AU files to text
Use Sonix to quickly convert
Vietnamese AU files to text
- 1Log into your Sonix account~30 sec
If you don't have one, you can sign up for Sonix's free account — Your free trial includes 30 minutes of transcription and translation.
- 2Upload your Vietnamese AU file~1 min
Click “Upload” and locate the Vietnamese AU file on your computer.
- 3Choose language: Vietnamese~10 sec
Select Vietnamese as the language spoken, then click “Transcribe”.
- 4Sonix transcribes your AU file~5 min
Sonix transcribes your Vietnamese AU file and converts it to Vietnamese text.
- 5Polish your Vietnamese transcript~2 min
Edit your Vietnamese transcript directly in the browser to correct any misheard words.
- 6Export Vietnamese text~10 sec
Export the Vietnamese text to MS Word, PDF, subtitles, or plain text.
Understanding Vietnamese AU files
Vietnamese has three major regional varieties: Northern (centered on Hanoi), Central (around Huế), and Southern (around Ho Chi Minh City). They differ in tone realization and consonant pronunciation — Northern speech distinguishes six tones while Southern speech merges two of them — so knowing which region your speakers come from helps when reviewing a transcript.
AU technical specifications
- Codec
- µ-law, A-law, or linear PCM (Audacity block files use 32-bit float PCM)
- Container
- AU (Sun audio)
- Typical bitrate
- Varies by encoding; classic 8 kHz µ-law files are 64 kbps
- Sample rate
- 8–48 kHz typical (8 kHz for classic µ-law); the header supports arbitrary rates, and Audacity chunks use the project's rate
- Compression
- Container (varies)
Vietnamese at a glance
- Speakers
- ~85–90 million speakers worldwide
- Writing system
- Latin alphabet (chữ Quốc ngữ) with diacritics marking tones and vowels
- Say hello
- Xin chào
Frequently asked questions
How to improve the accuracy of your Vietnamese transcripts?
Start by improving the quality of the Vietnamese AU file that you upload to Sonix. Please use high quality recording equipment, recording in a quiet environment, and ensure that your speakers are speaking clearly to ensure that your transcript is as accurate as possible.
Any advice for the Vietnamese AU file that I upload?
Yes, please do not over-compress or over-filter the audio track of your Vietnamese AU file. By uploading a high quality version of your audio, we can give you the best level of accuracy.
Aside from AU, do you support other types of audio/video files?
Yes, we do! You can convert the following file types in Vietnamese with Sonix:
Why is my Audacity project folder full of small AU files?
Older versions of Audacity split a project's audio into small AU block files inside a _data folder so long tracks could be edited efficiently, and the .aup project file reassembles them in order. Avoid moving or renaming these chunks; open the project and export the audio instead.
How do I play a standalone AU file?
Standalone AU files use the Sun audio format and open in players such as VLC and editors such as Audacity. Converting to WAV or MP3 gives the broadest compatibility with modern software and devices.
Can Sonix transcribe Vietnamese audio and video files?
Yes. Upload your audio or video file, select Vietnamese as the spoken language, and Sonix generates a transcript you can edit in the browser and export in formats such as DOCX, PDF, and SRT.
Does Vietnamese transcription include tone diacritics?
Transcripts are written in standard Vietnamese orthography (chữ Quốc ngữ), which includes the tone and vowel diacritics. You can correct any misplaced marks in the built-in editor before exporting.
Does Sonix handle Northern and Southern Vietnamese accents?
You select Vietnamese as a single language, and the transcript covers speech from different regions. Because regional pronunciation varies, it is worth reviewing recordings with strong Central or Southern accents in the editor before export.
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Awesome and I was really shocked when I saw how carefully my mp3 file was transcribed!!
I’m really dazzled by your system. I have never seen something so accurate. You push the level higher than Otter and available for French language!
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