How to Create Foreign Language Audio (Vietnamese, Chinese, etc.) with AI Voice for Easy Training and On-site Instructions

Aug. 30, 2026

How to Create Foreign Language Audio (Vietnamese, Chinese, etc.) with AI Voice for Easy Training and On-site Instructions

The number of technical intern trainees being accepted by Japanese companies is increasing.

However, providing training for them can be quite a struggle.

The language barrier is particularly significant, and there are many situations where it is difficult to give specific instructions to trainees who are not proficient in Japanese.

To solve this problem, companies are required to show ingenuity and effort.

As one such solution, **the use of AI voice is effective**.

How to create foreign language audio with Ondoku

The method for creating foreign language audio using AI voice is very simple.

how to generate audio in foreign languages on ondoku3

  1. Translate Japanese text into a foreign language (e.g., Vietnamese) using a translation service such as Google Translate.
  2. Enter the translated Vietnamese text into the Ondoku text box.
  3. Select a Vietnamese voice.
  4. Click the read-aloud button to output it as Vietnamese audio.

With just these steps, it becomes possible to convert Japanese text into Vietnamese audio.

  • There is no need to ask someone fluent in a foreign language,
  • there is no time loss for meetings or re-recording,
  • and there is no need for a recording environment such as a microphone.

Of course, you can choose from more than 80 languages and dialects, including not only Vietnamese but also Chinese, Filipino, Indonesian, Burmese, and more.

Ondokutext-to-speech: List of supported languages for reading aloud

Ondokutext-to-speech: List of supported languages for reading aloud

Ondoku supports reading aloud in languages from countries all over the world, covering over 80 languages and dialects. The total number of speakers exceeds 650. The "Language" dropdown on the Ondoku top page displays names in their local tongue. In this article, we list each language notation in your own language...

Note: Ondoku itself does not have a translation function

Ondoku itself does not have a translation function.

Therefore, translation must be performed separately.

Because of this, when creating audio with Ondoku, you should first perform the translation and then generate the audio.

For translation,

please utilize external services such as these.

Note: If you enter Japanese and try to read it aloud in a foreign language, the audio will only sound "sort of" like that language

Even if you enter Japanese directly into a foreign language reading setting, the AI voice will only read the Japanese phrase as if it were a 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.)

suppose you want English audio for that meaning, but you try to turn the Japanese text directly into English audio.

Example of bad foreign language reading aloud with Ondoku

Then, the reading aloud will sound like this:

Kenichi idiographic.idiographic.

Actual audio:

In this case,

Hello. My name is Ken.

although you need audio that says the above, it is only being read as if it were English, resulting in a reading that makes no sense.

This means that **the AI voice does not understand the specific meaning of "converting Japanese into foreign language audio."**

To obtain accurate foreign language audio, it is first necessary to translate the Japanese into the target language.

hello mynameis

Japanese: こんにちは。私の名前はケンです。

If you want English audio with that meaning, be sure to translate it first and then enter the translated text

Hello. My name is Ken.

into Ondoku to read it aloud.

Example of correct foreign language reading aloud with Ondoku

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 sample voices for each language for free in this article!

Please take a look.

For pronunciation checks and listening practice in Vietnamese study! Listen to native pronunciation from 6 speakers, including female and male voices.

For pronunciation checks and listening practice in Vietnamese study! Listen to native pronunciation from 6 speakers, including female and male voices.

Here you can listen to sample Vietnamese voices from Ondoku. Voices include both female and male options. Please use them for narration, work training, presentations, learning, and more.

For learning Indonesian and Javanese and checking pronunciation! Audio sample listening & how to use the free text-to-speech service Ondoku

For learning Indonesian and Javanese and checking pronunciation! Audio sample listening & how to use the free text-to-speech service "Ondoku"

You can listen to Indonesian and Javanese audio samples 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 checks and listening practice in Filipino (Tagalog, Visayan, Cebuano) study! Listen to native pronunciation from 6 speakers, female and male.

For pronunciation checks and listening practice in Filipino (Tagalog, Visayan, Cebuano) study! Listen to native pronunciation from 6 speakers, female and male

Here you can listen to Filipino (Tagalog, Visayan, Cebuano) voices from Ondoku. Voices include both female and male options. Please use them for narration, work training, presentations, learning, and more.

For pronunciation checks and listening practice in Thai study! Listen to native pronunciation from 4 types of speakers, including female and male voices.

For pronunciation checks and listening practice in Thai study! Listen to native pronunciation from 4 types of speakers, including female and male voices.

Here you can listen to Thai voices from Ondoku. Voices include both female and male options. Please use them for narration, work training, presentations, learning, and more.

For pronunciation checks and listening practice in Chinese study! Listen to native pronunciation from 40 speakers, including female, male, and girl voices.

For pronunciation checks and listening practice in Chinese study! Listen to native pronunciation from 40 speakers, including female, male, and girl voices.

Here you can listen to Chinese voices from Ondoku. You can choose from regional variations such as Simplified Chinese (Mandarin), Cantonese, and Traditional Chinese (Taiwanese Mandarin). Voices include female, male, girl, and boy options.

Benefits of utilizing AI voice in training for technical intern trainees

There are many benefits to utilizing AI voice in training for technical intern trainees.

1. The language barrier is reduced

When training or instructions for technical intern trainees are needed, using AI voice can significantly narrow the language gap.

**By converting the training content into their native language using AI voice, it becomes easier for trainees to understand specific instructions**.

There may be **some people who are not good at reading text**.

In such cases, **being able to hear their own language in audio form** is a considerable advantage.

Training is meaningless if the content is not understood or if instructions are not followed.

2. AI voice can be used anytime and anywhere

AI voice can be used at any time and in any location.

This allows for independent learning even outside of training hours.

Furthermore, the ability to listen to the training content as many times as needed is a major benefit.

This enables trainees to review parts they did not fully grasp later, thereby enhancing the learning effect.

Utilizing AI voice significantly reduces the burden on the company

Using AI voice can significantly reduce the burden on the company side.

In particular, since the content can be converted into audio, there is no need to explain the same thing over and over again.

From these factors, the effectiveness of utilizing AI voice in training for technical intern trainees is clear.

Utilize AI voice to help with foreign trainee training and communication on-site

As of 2019, the percentage of technical intern trainees by nationality was highest for Vietnam, followed by China, the Philippines, Indonesia, and Thailand.

By utilizing AI voice, you can conduct training for foreign staff, such as Vietnamese employees, and communicate smoothly with them on-site.

As a means to convey information across language barriers, please try using Ondoku.

■ AI voice synthesis software "Ondoku"

"Ondoku" is an online text-to-speech tool that can be used with no initial costs.

  • Supports 81 languages and regions, 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.

Text-to-speech software "Ondoku" can read out 5000 characters every month with AI voice for free. You can easily download MP3s and commercial use is also possible. If you sign up for free, you can convert up to 5,000 characters per month for free from text to speech. Try Ondoku now.
HP: ondoku3.com
Email: ondoku3.com@gmail.com
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