How to Create Foreign Language Audio (Vietnamese, Chinese, etc.) with AI Voice for Easy Training and On-site Instructions
Aug. 7, 2026
The acceptance of technical intern trainees in Japanese companies is on the rise.
However, providing that training can be quite a challenge.
The language barrier is particularly significant, and there are many situations where it is difficult to provide specific guidance to trainees who are not proficient in Japanese.
To solve this problem, companies are also required to show ingenuity and effort.
As one solution, the use of AI voice is effective.
How to create foreign language audio with Ondoku
Using AI voice to create foreign language audio is very easy.
- Translate the Japanese text into a foreign language (e.g., Vietnamese) using a translation service such as Google Translate.
- Enter the translated Vietnamese text into the Ondoku text box.
- Select a Vietnamese voice.
- Click the "Read Aloud" button to output it as Vietnamese audio.
With just these steps, it is possible to convert Japanese text into Vietnamese audio.
- There is no need to ask someone fluent in a foreign language,
- No loss of time for meetings or re-recording, and
- No recording environment such as a microphone is required.
Of course, you can choose from over 80 languages and dialects, including not only Vietnamese but also Chinese, Filipino, Indonesian, Burmese, and more.
Ondoku text-to-speech: List of supported languages for reading aloud
Ondoku supports reading aloud in languages from all over the world, covering 80 languages and dialects. The total number of speakers exceeds 650. The "Language" dropdown on the Ondoku top page shows languages in their native names. In this article, we provide the notation for each language in its own tongue...
Caution: Ondoku itself does not have a translation function
Ondoku itself does not have a translation function.
Therefore, translation must be performed separately.
For this reason, when creating audio with Ondoku, you should first perform the translation and then generate the audio.
Please use external services for translation, such as:
Caution: Entering Japanese and reading it aloud with a foreign language voice only results in audio that "sounds like" it
Even if you input Japanese directly into a foreign language voice setting, the AI voice will simply read the Japanese phrase as if it were the foreign language; it will not result in audio that reflects the translated meaning.
For example,
Japanese: こんにちは。私の名前はケンです。 (Hello. My name is Ken.)
When you want English audio with this meaning, you might try to turn Japanese directly into English audio.
The resulting audio was like this:
Kenichi idiographic.idiographic.
Actual audio:
In this case, although "Hello. My name is Ken." audio is needed, you can see that it is just being read in an English-sounding way, resulting in audio that makes no sense.
This means that AI voice does not understand the specific meaning of "converting Japanese into foreign language audio."
To obtain accurate foreign language audio, a process of first translating the Japanese into the target language is necessary.
Japanese: こんにちは。私の名前はケンです。 (Hello. My name is Ken.)
If you want English audio with this meaning, be sure to translate it first and enter the translated text:
Hello. My name is Ken.
into Ondoku to read it aloud.
Foreign language audio samples useful for communication with technical intern trainees and foreign employees
Ondoku is capable of reading aloud in various foreign languages.
You can listen to free sample audios for each language in these articles!
Please take a look.
For pronunciation check and listening of Vietnamese study! Listen to native pronunciation, 6 speakers (trial listening) female and male voices
Here, you can listen to trial samples of Vietnamese audio from Ondoku. Voices include both female and male options. Please use them for narration, work training, presentations, learning, and more.
For Indonesian/Javanese learning and pronunciation check! Audio sample listening & how to use free text-to-speech "Ondoku"
You can listen to audio samples of Indonesian and Javanese available on Ondoku. Checking pronunciation is essential for smooth communication with Indonesian and Javanese speakers. In such cases, Ondoku is recommended! A text-to-speech service...
For pronunciation check and listening of Filipino study (Tagalog, Visayan, Cebuano)! Listen to native pronunciation, 6 speakers (trial listening) female, male
Here, you can listen to trial samples of Filipino (Tagalog, Visayan, Cebuano) audio from Ondoku. Voices include female and male options. Please use them for narration, work training, presentations, learning, and more.
For pronunciation check and listening of Thai study! Listen to native pronunciation, 4 types of speakers (trial listening) female and male voices
Here, you can listen to trial samples of Thai audio from Ondoku. Voices include female and male options. Please use them for narration, work training, presentations, learning, and more.
For pronunciation check and listening of Chinese study! Listen to native pronunciation, 41 speakers (trial listening) female, male, girl voices
Here, you can listen to trial samples of Chinese audio from Ondoku. You can choose Chinese audio from various regions: Mandarin (Mainland China), Cantonese (Hong Kong), and Mandarin (Taiwan). Voices include female, male, girl, and boy options.
Advantages of using AI voice in training for technical intern trainees
There are numerous benefits to utilizing AI voice in training for technical intern trainees.
1. Reducing language barriers
When training or instructions for foreign trainees are needed, AI voice can significantly bridge the language gap.
By converting training content into their native language using AI voice, trainees can more easily understand specific instructions.
There may be some who are not good at reading text.
In such cases, being able to hear their native language in audio is a significant advantage.
Even with great effort, training is meaningless if the content is not understood or if instructions are not clear.
2. AI voice can be used regardless of time or place
AI voice can be used anytime and anywhere.
This allows for self-study even outside of training hours.
Another major advantage is the ability to listen to training content as many times as needed.
This enables trainees to review parts they didn't quite understand later, thereby enhancing the learning effect.
Using AI voice significantly reduces the burden on the company side
Using AI voice can greatly reduce the burden on the company.
In particular, since content can be converted to audio in advance, there is no need to explain the same thing over and over again.
These factors demonstrate the effectiveness of utilizing AI voice in training for technical intern trainees.
Let's use AI voice for foreign employee training and interactions on-site
As of 2019, the proportion of technical intern trainees by nationality is highest for Vietnam, followed by China, the Philippines, Indonesia, and Thailand.
By utilizing AI voice, you can smoothly conduct training for foreign staff, such as Vietnamese employees, and facilitate communication on-site.
Please consider using Ondoku as a means to convey information across language barriers.
■ AI voice synthesis software "Ondoku"
"Ondoku" is an online text-to-speech tool that can be used with no initial costs.
- Supports approximately 50 languages, including Japanese, English, Chinese, Korean, Spanish, French, and German
- Available from both PC and smartphone
- Suitable for business, education, entertainment, etc.
- No installation required, can be used immediately from your browser
- Supports reading from images
To use it, simply enter text or upload a file on the site. A natural-sounding audio file will be generated within seconds. You can use voice synthesis up to 5,000 characters for free, so please give it a try.
Email: ondoku3.com@gmail.com
"Ondoku" is a Text-to-Speech service that anyone can use for free without installation. If you register for free, you can get up to 5000 characters for free each month. Register now for free
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