How to quickly create narration for YouTube videos using text-to-speech software. Tips and tricks
Oct. 7, 2025


One of the most common uses for "Ondoku" is "narration for videos on YouTube, etc. "
Text-to-speech software is very useful for people who don't want to record their own voice .
With Ondoku , you can create professional-looking narration that's much easier to understand than recording it yourself!
This video also uses the audio from "Ondoku" for narration.
However, creating video narration using Ondoku requires a little skill .
In this article, we will explain in an easy-to-understand manner how to create video narration using ``Ondoku'' !
How to create narration in "Ondoku"
- Creating a narration script
- Ondoku reads narration script text aloud
- Check the narration audio and download if there are no problems
- Correct the narration audio if it sounds strange
- Load the downloaded narration audio into video editing software
- Editing the pauses in the narration
- Your YouTube video is complete with easy-to-understand narration!
This is the process.
There are some recommended points to consider for each item, so we will explain them in detail.
How to create narration audio for YouTube videos using "Ondoku"
Now, let's take a closer look at how to create narration audio for YouTube videos using ``Ondoku'' !
1. Create a narration script
First, create the narration script text .
The first YouTube video I introduced, introducing "Ondoku," used Google Docs.
Of course, you can use any tool that allows you to write text, such as Microsoft Word, Libre Office, or Notepad.
The script you create here can also be reused as subtitles on YouTube .
The first video introduced uses only one type of audio for narration.
With these specifications, 2000 characters will result in a video of about 5 minutes .
The video introduced here is narrated rhythmically with little gap between each audio segment, so if you leave more space between each segment, you could make a video that's about 7 minutes long.
If you structure the narration to match the content of the video, you can freely adjust the length of the entire video.
- What is the theme?
- How many minutes will the video be?
- Isn't the connection between the stories strange?
By keeping this in mind when thinking about the structure of your video, you can create a script smoothly.
2. Read the narration script text aloud with Ondoku
Once the script is complete, the next step is to read the narration aloud using "Ondoku."
To create a narration, open the Ondoku homepage here .
Paste the script content into the text box.
If it is set to another language, set the language to match the narration script text.
Select the type of voice, such as female or male.
For example, for Japanese, you can choose from over 16 different voices, including female, male, and child !
You can listen to it on this page, so please take a look.
Ondoku also allows you to adjust the pitch of the voice and the reading speed.
However, when using it for the first time, you can leave it at the default settings.
The narration script text is now ready to be read aloud.
Press "Read Aloud" to start generating narration audio !
The narration script text will be read out quickly, so just keep the screen open and wait.
For example, a script of 5,000 characters can be read aloud in just a few seconds .
Once the audio is generated, the screen will change to show the audio player.
3. Check the narration audio and download if there are no problems
Listen to the audio that has been read and if there are no problems , click "Download" to save the audio file .
It is also recommended to split the audio and download it.
When downloading the audio for "Ondoku," you should definitely make use of the split function .
To use the split function, first open the Ondoku reading history page .
When you open the history page, you will see
- Full text display
- Split
- delete
There is a menu of.
Clicking "Split" will open the split download page .
Enter the "distance" .
The interval is measured in milliseconds , so if you set it to "300", the file will be split if the interval is longer than 0.3 seconds.
If you are using it for the first time, you can leave it at the default setting of "300".
Press "Split and download" to start the audio splitting process.
Once the splitting process is complete, a ZIP file will be downloaded automatically.
When you unzip the ZIP file, you will see the MP3 files split into separate files like this.
All you have to do is load it into your video editing software!
4. Fix the narration audio if it sounds strange
If there is anything strange about the audio being read, we will correct it.
Adjusted spacing
Pausing can easily be corrected with punctuation.
For more information, please see this article.
Adjusting intonation
To adjust the intonation ,
- Add punctuation.
- Try adding brackets.
- Try changing it to kanji, katakana, hiragana, etc.
- Try changing it to a homonymous kanji.
You can change the intonation by using techniques like these.
Please also see this article.
For example, the intonation changes slightly when written as "text reading software" and "text reading software" when read aloud by "Ondoku."
Therefore, when the management staff of "Ondoku" create narration, they input it into "text reading software" and read it aloud.
Unfortunately, spaces, exclamation marks, and question marks have no effect on intonation .
SSML can also be used
It can also be adjusted using SSML (Speech Synthesis Markup Language) .
For more information about SSML, see this article.
5. Load the downloaded narration audio into your video editing software
Load the downloaded video narration audio into your video editing software.
If you download the entire audio file at once, you can just load the audio file as is.
If you download files in parts, the file names will be numbered consecutively, such as 0.mp3, 1.mp3, 2.mp3, so you can simply drag and drop them into your video editing software to load them in the correct order.
6. Edit the narration pauses
In videos, narration often requires a certain amount of pause.
This is because reading all the text at once can be difficult for the viewer to understand.
To create the perfect gap, try spacing out the audio gradually in your video editing software's timeline.
If you have downloaded the entire audio file, you can use the "Cut Tool" or "Laser Tool" to split the parts you want to leave space between.
For example, in Adobe Premiere Pro, you can split it using the "Razor Tool" menu.
If you download in parts, leave space between each audio file so that the intervals are just right for each file.
Editing in this way changes the timing, making the video easier to watch.
7. Your YouTube video is complete with easy-to-understand narration!
By doing these steps, you will have completed the narration for your video.
After this, you can edit the video to your liking.
Why not try creating a video narration with "Ondoku"?
This time, the management staff of "Ondoku" introduced the methods they usually use to create videos.
When creating a YouTube video, a little ingenuity can lead to great narration.
There may be a better way, so if you know of one, please let me know.
The audio for "Ondoku" is increasingly being used on YouTube.
Text-to-speech software has evolved to become much more sophisticated than before.
It reads text in such a realistic and easy-to-listen voice that you won't even notice it's text-to-speech software.
Why not give Ondoku a try, as it allows you to create narration audio for YouTube videos for free ?
■ 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