How to Use Ondoku AI Voice: A Collection of Ideas and Real-World Use Cases

Aug. 30, 2026

How to Use Ondoku AI Voice: A Collection of Ideas and Real-World Use Cases

AI voice Ondoku is available for commercial use and can be used in various scenes.

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But how should I actually use it?

Because it seems like you can do many things, you might be curious about what kind of situations it can be used in.

This time, we will introduce several specific use cases for Ondoku.

How to Use for Narration

  • YouTube narration
  • Replacing VTuber voices
  • Audio for blog articles
  • Voice conversations with Chat-GPT

How to Use at Work

  • Proofreading
  • Internal training materials
  • Audio for e-learning materials
  • Training for foreigners (Vietnamese, Burmese, Nepali, etc.)
  • Presentations
  • Practice for academic conference presentations

How to Use for Learning

  • English listening
  • Checking Chinese pronunciation
  • School listening tests
  • Reading tool for people with learning disabilities

How to Use for Books

  • Audiobooks
  • Listening audio for teaching materials

How to Use for Broadcasting

  • Answering machine services
  • Automated voices for call centers
  • Town announcements and disaster prevention broadcasts
  • In-store and in-facility broadcasts
  • Audio guides for art galleries and museums
  • Narration for TV programs

How to Use for Products

  • In-app character voices
  • Integrating into products that provide voice guidance
  • Using for audio in product instruction videos

***Caution***

Ondoku can be used for commercial purposes even by free members, but depending on the usage—such as integrating it into a product—a Business Plan may be required. Precautions and required plans vary by usage.

Please be careful when using it. For details, please check this article.

What you can do with Ondoku. About commercial use (business use) and prohibited acts.

What you can do with Ondoku. About commercial use (business use) and prohibited acts.

Commercial use (business use) is possible with Ondoku. Regardless of whether you are an individual or a corporation, use for the purpose of obtaining financial or other benefits, directly or indirectly, is considered commercial use. However, please note that Ondoku has established prohibited acts. This time, we explain what you can and cannot do with Ondoku...

How to Use for YouTube Narration

Ondoku3 for narration

YouTube Narration

You want to start YouTube but lack confidence in your voice. You're worried about your articulation. You keep misreading and having to do retakes.

For such YouTube situations, AI voice is useful for creating narration. Especially for YouTubers who post videos frequently, being able to create high-quality audio in a short time is a significant advantage.

How to quickly create narration for YouTube and other videos with text-to-speech software. Tips and points.

How to quickly create narration for YouTube and other videos with text-to-speech software. Tips and points.

Explaining how to quickly create YouTube video narration with Ondoku. From how to create a script to using Ondoku, adjusting for natural intonation, and tips for editing with video software, we explain it clearly. A must-see for those who want to streamline video production with text-to-speech software!

Replacing VTuber Voices

AI voice is also utilized as the voice for VTubers.

By creating a character's voice without using your own, it is possible to carry out activities while maintaining privacy.

Recently, Ondoku's voice has been used by famous VTubers when they need to rest their throats. We are very happy about this!

Audio for Blog Articles

By using Ondoku to turn blog articles into audio, you can provide them as audio content. This increases the ways people can obtain information. As a result, users can get information without relying on sight, improving accessibility.

How to Use at Work

Ondoku3 for work

Proofreading

Proofreading text is also an area where AI voice excels. By listening to text converted into audio, it becomes easier to find the natural flow of sentences, phrasing, and errors in wording.

Internal Training Materials

Turning training materials into audio deepens employee understanding and enables learning even when their hands are busy. Additionally, MP3 and WAV files downloadable from Ondoku can be inserted into PowerPoint.

How to insert audio into PowerPoint! Take your presentation to the next level using Ondoku.

How to insert audio into PowerPoint! Take your presentation to the next level using Ondoku.

If you want to add audio to slides or presentations created with PowerPoint, this article introduces how to do it thoroughly with images and videos.

Audio for E-learning Materials

AI voice is also utilized for e-learning material audio. By using AI voice, it supports auditory learning in addition to visual learning.

Training for Foreigners (Vietnamese, Burmese, Nepali, etc.)

Multi-language compatible AI voice is useful for training sessions with multinational members.

Creating audio data with native pronunciation is difficult and takes time and money. However, by using Ondoku to create audio data in the language of the target country, you can ensure they understand the content in their respective native languages. Ondoku's pronunciation is well-received by native speakers.

Presentations and Academic Conferences

Ondoku can be used not only for practicing presentations and academic conference announcements but also for the actual presentations themselves.

  • You can check how many minutes it takes based on your speaking speed.
  • Pronunciation practice for presentations in English, etc.

By listening to the audio-converted script, you can check for natural narration and pronunciation.

External Site: I tried making an artificial presentation video

How to Use for Learning

Ondoku3 for study

English Listening

It has the ability to reproduce the delicate sounds of language, such as vowels, consonants, and intonation.

In home English learning, some families put the audio sources into pens that can play MP3 files for studying.

For English learning listening! Listen to native pronunciation with 92 speakers, including voices of women, men, girls, and boys!

For English learning listening! Listen to native pronunciation with 92 speakers, including voices of women, men, girls, and boys!

Ondoku is a text-to-speech service that can pronounce languages from all over the world. You can listen to 92 types of English audio from Ondoku.

Checking Chinese Pronunciation

It's perfect for Chinese pronunciation practice. It is also often used on YouTube and educational blogs.

【2026 Edition】Complete Guide to Chinese Text-to-Speech | Detailed explanation from pronunciation practice to inbound tourism

【2026 Edition】Complete Guide to Chinese Text-to-Speech | Detailed explanation from pronunciation practice to inbound tourism

Improve your pronunciation with Chinese reading services! Explaining the features and usage of text-to-speech tools that support Mandarin, Taiwanese Mandarin, Cantonese, and various local dialects. Why not try using free Chinese reading tools, from beginners to advanced learners?

School Listening Tests

It is also frequently used for school listening tests. We often receive inquiries from school teachers asking, "Can I use this?"

Image-based explanation of credit notation examples when using Ondoku for listening tests in educational institutions such as public schools and school corporations

Image-based explanation of credit notation examples when using Ondoku for listening tests in educational institutions such as public schools and school corporations

With Ondoku, preparing for various listening tests like English and Chinese is easy! Here, we explain in detail how educational institutions like public schools and school corporations should provide credit notation and the rules for use.

Reading Tool for People with Learning Disabilities

AI voice is also utilized as a reading tool for people with learning disabilities. Converting information into audio makes it easier to understand.

How to Use for Books

Ondoku3 for a book

Audiobooks

You can turn classic novels with expired copyrights or novels you've written yourself into audiobooks.

In addition to personal enjoyment, it increases accessibility for the visually impaired and people who don't have time to read books during their commute.

【Free】Let's make an audiobook with speech synthesis! Summary of self-made methods using reading services

【Free】Let's make an audiobook with speech synthesis! Summary of self-made methods using reading services

Explaining in detail the method and flow of creating an audiobook using free AI reading services/software, along with recommended services and software.

Listening Audio for Teaching Materials

Listening audio is included with teaching materials for entrance exams and test preparation. Ondoku's voice is sometimes used as that audio source.

How to Use for Broadcasting

Ondoku3 for a broadcast

Answering Machine Services and Call Center Automated Voices

AI voice is also adopted for answering machine services and automated voices at call centers.

It speaks fluently and eliminates the effort of recording. It is highly valued because it reads text exactly as intended just by typing it in, as many times as needed.

Town Announcements and Disaster Prevention Broadcasts

Ondoku is also utilized for public broadcasts. Town announcements and disaster prevention radio broadcasts often become a burden for the person in charge, but by using Ondoku's AI voice, that burden can be reduced.

In-store and In-facility Broadcasts

AI voice is also used for broadcasts in stores, factories, and offices. It's very beneficial that AI can handle audio for the same lines repeated every day, removing the burden from people. Clear pronunciation and natural sound are its key features.

Achieve professional-level in-facility broadcasting with automated voice! AI Announcement Complete Guide

Achieve professional-level in-facility broadcasting with automated voice! AI Announcement Complete Guide

Automate in-facility broadcasting with AI! With Ondoku, create narrator-level automated voices for free. Multi-language support ensures thorough inbound tourism measures. Contribute to cost reduction through operational efficiency!

Easily create audio guidance for public transport with AI! Latest guide from station, train, and bus inbound support to barrier-free access

Easily create audio guidance for public transport with AI! Latest guide from station, train, and bus inbound support to barrier-free access

Explaining how to easily create audio guidance for public transport using AI technology. Professional-level sound quality enables barrier-free and inbound support. Significantly reduce operational costs with the latest AI reading services that can be started for free.

Audio Guides for Art Galleries and Museums

AI voice is used for audio guides in art galleries and museums. In-facility guidance and exhibit explanations can be provided to visually impaired people and foreigners. Since Ondoku supports over 80 languages and dialects, creating audio in each language makes it easier for people from those countries to understand.

How to make a museum audio guide for free! Recommendation for AI audio guidance for small museums and permanent exhibits

How to make a museum audio guide for free! Recommendation for AI audio guidance for small museums and permanent exhibits

Do you want to easily introduce an audio guide to your museum? With AI text-to-speech 'Ondoku,' you can create high-quality audio for free! Supporting Japanese and foreign languages, it's ideal for small museums and private museums. Details here!

AI reading services are recommended for art museum audio guides! Thorough explanation of benefits and implementation methods

AI reading services are recommended for art museum audio guides! Thorough explanation of benefits and implementation methods

Boost museum attendance with audio guides! With AI 'Ondoku,' you can create high-quality audio in multiple languages for free. Improve visitor satisfaction and revenue, and help with inbound tourism measures! Implementation methods are also explained.

Narration for TV Programs

Ondoku is also utilized as narration audio for TV programs.

While specific program names cannot be disclosed, Ondoku's voice is used on both local and national stations.

Title Calls for Radio Programs

Ondoku is also utilized as the voice for title calls on radio programs.

You are free to process Ondoku's audio. By processing the audio, you can create various impressions according to your ideas, such as a cool presentation or a refreshing atmosphere.

As an example of implementation, it was used in the tbc Tohoku Broadcasting radio program 'B-Night.'

How to Use for Products

Ondoku3 for a product

In-app Character Voices

It can be used as the voice for characters within apps.

In particular, since Ondoku's voices are not overly distinctive as specific characters, it is less likely to leave the impression that "this voice = character X's voice."

Integrating into Products with Voice Guidance

AI voice is used for product operation guides. Explaining with a natural voice deepens the user's understanding.

Example: When operating a household appliance by remote control, audio plays saying "Set to XX."
Example: When operating a touch panel, audio plays saying "XX recognized."
Example: Guiding a patient on the next action with a medical product, audio plays saying "Moving up."

Using for Audio in Product Usage Videos

AI voice is used for videos explaining product operation or usage. Explaining with a natural voice deepens user understanding.

Example: In-house product PR
Example: New product guidance
Example: Manual videos

Ondoku Can Be Used in a Wide Variety of Situations

Ondoku's audio can be used in various scenes. Depending on your ideas, you can really do so many things!

Please try using Ondoku for your "I want to do this!" or "I want to try that!" projects.

***Caution***

Ondoku can be used for commercial purposes even by free members, but depending on the usage—such as integrating it into a product—a Business Plan may be required. Precautions and required plans vary by usage.

Please be careful when using it. For details, please check this article: "About commercial use (business use) and prohibited acts."

■ 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.

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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