[Paid version] What is the license for commercial use of text reading software? I looked into its use on Youtube.

Dec. 12, 2023

[Paid version] What is the license for commercial use of text reading software? I looked into its use on Youtube.

People who want to become YouTubers should use "text reading software"! When you decide to do so, the most important thing to worry about is commercial use.

Using text-to-speech software on YouTube in hopes of earning advertising or affiliate income is clearly commercial use.

This time, I will introduce four paid text-to-speech software that can be used commercially and what their licenses are.

If you accidentally use text-to-speech software that cannot be used for commercial purposes in violation of its terms,

  • Videos are deleted, accounts are suspended, etc.
  • Complaints have been received from text reading software companies,

Various risks are assumed.

It is important to check the terms and conditions before making a purchase to avoid breaking them.

However, there are several text reading softwares available in the world.

When comparing multiple software,

  • Which ones are OK for commercial use?
  • Which is NG?
  • Which one does not require a license purchase for personal use on YouTube?

There are so many differences that it is difficult to sort them out.

Paid text reading software

Paid text reading software

The software we will be talking about this time is

  1. Ondoku
  2. AI Talk
  4. CeVIO
  5. Slow voice (AquesTalk2)

I will pick it up and introduce it.

Since there are a lot of them, I will briefly introduce the product and focus on commercial use, especially when used by individuals on YouTube .



The first one is Ondoku, the text reading software used in this video. Prices range from free to 2980 yen.

If you register as a member of Ondoku, you can use 10,000 characters per month for free. Not only can it be read out in Japanese, but it is also multilingual.

If you are a paid member, you will be able to use 200,000 to 1 million characters per month.

Even free members can use it for commercial purposes without any restrictions.

As someone on the management side, I would be happy if you could pay me a small amount if I can be of any use to you in order to maintain this service in the future.

AI Talk

AI Talk

The second is AI Talk.

This is a well-known text reading software developed by AI Co., Ltd. Prices start from 16,500 yen.

Easy AI Talk 3

  • 4 female voices
  • 1 male voice
  • 1 female Kansai dialect voice
  • 1 male Kansai dialect voice

is available.

It also supports emotional expressions, and you can try out speech synthesis on the homepage.

Regarding commercial use, HP states that ``Basically, commercial use and business use is not allowed.''

However, if you look closely, you will see that it is OK for use on video sharing sites (YouTube, etc.) to narrate video works on the web.

It becomes.

Basically, if you are an individual, you can use a regular license if you earn advertising revenue from YouTube views.

However, if it is used to create a video for paid work, or if a YouTube video is sponsored and receives compensation, it is considered commercial. It cannot be used within the scope of the regular license.

Please note that AI Talk does not sell commercial licenses. For commercial use by corporations, there are separate products for corporations.



The third one is Voiceroid.

The engine is provided by AI Corporation, and the software is sold by AHS, Gynoid (Yoshimoto), Yamaha, and Internet. Prices start from 15,180 yen.

Text reading software with a lineup of over 20 character voices.

Many of the sound sources are based on the voices of voice actors, making them very unique. The voice is also perfect for the illustration image of the cute character.

However, the company providing the music differs depending on the sound source.

Therefore, the terms of use differ slightly for each software. The range of commercial use available also differs, so you need to be very careful.

  • Basically, it is possible for personal use.
  • For commercial use, please check the respective terms of use (as the providers are different).
  • There are different pricing options for corporations.



The last one is Chebio.

There was a free version of Chebio until November 19, 2014, but currently there is only a 30-day trial version. Prices start from 6,600 yen.

Currently on sale at Chebio Creative Studio,

  • Sasara Sato,
  • Tsuzumi Suzuki,
  • Takahashi,

There are 3 people.

It is possible to purchase a set for 3 people, and it is also sold separately.

I am concerned about commercial use.

In particular, let's focus on its use in video posting on YouTube and other sites.

"Use for video posting,

If you post as an individual or in a doujin circle and earn advertising revenue, you can use it for free. ”

It becomes.

Individuals can use it for activities such as posting videos on YouTube without purchasing a commercial license. However, in that case, you will need to write CeVIO's character name and the fact that it is CeVIO in the details section of the video.

Please note that in the case of paid video creation, a paid commercial use license is required. License fee needs to be estimated. There was no mention of how much it cost.

Slow voice (AquesTalk2)


Fifth, this is a little extra, but it's a slow voice (AquesTalk2).

This is used as a speech synthesis engine for Softtalk and Boyomi-chan.

Since Softtalk and Boyomi-chan are available for free, some people may end up using them inadvertently.

Actually, for commercial use, you need to purchase a commercial license. Especially in the case of Soft Talk, which uses AquesTalk2 in some parts, it is better to purchase a license.

The license fee is approximately 6000 yen per year.


This time, we focused on the commercial use of paid text reading software.

Overall, what is recommended is

  • If you want to use it simply and intuitively, use Ondoku.
  • If you want to focus on creating tones etc., use VOICEROID+.


I'm sure you have a preference for voice quality, so please try using the trial version on the official website.

The best way to find your favorite software is to actually try it out.

I would be happy if you could include me, Ondoku, in the options.

I'm working hard on this, so I'd be really happy if you could support me.

It's been a long time, but that's it for now.

I'm looking forward to seeing you again.

■ 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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