How to Quickly Create YouTube Narrations with Text-to-Speech: Tips & Tricks
July 13, 2026

One of the most common uses for 『Ondoku』 is "narration for videos such as YouTube."
Text-to-speech software is very convenient for those who do not want to record their own voice, isn't it?
By using 『Ondoku』, you can create professional-grade narration that is much easier to hear than recording it yourself!
This video also uses 『Ondoku』 audio for its narration.
However, there are a few tips you need to know to create video narration using 『Ondoku』.
Therefore, in this article, we will introduce how to create video narration with 『Ondoku』 in an easy-to-understand way!
The process for creating narration with 『Ondoku』 is:
- Create a narration script text
- Read out the narration script text with Ondoku
- Check the narration audio and download it if there are no issues
- Correct the narration audio if it feels unnatural
- Import the downloaded narration audio into video editing software
- Edit the timing of the pauses in the narration audio
- A YouTube video with easy-to-hear narration is complete!
This is the general flow.
There are recommended points to focus on for each item, so we will explain them in detail.
The Workflow for Creating YouTube Video Narration Audio with Ondoku
Now, let's explain in detail how to create narration audio for YouTube videos with 『Ondoku』!
1. Create a narration script text

First, create a script text for the narration.
In the YouTube video introducing 『Ondoku』 mentioned at the beginning, Google Docs was used.
Of course, any tool that can write text, such as Microsoft Word, LibreOffice, or Notepad, is fine.

The script you create here can also be reused as YouTube subtitles.
The video introduced at the beginning is structured to have narration using only one type of voice.
With such specifications, 2,000 characters will result in a video of about 5 minutes.
The introduced video is designed to have rhythmic narration without much space between audio clips, so if you take more distinct pauses, it can also become a video of about 7 minutes.
If you structure the narration to match the video content, you can freely adjust the total time length of the video.
- What is the theme?
- How many minutes will the video be?
- Is the flow of the story logical?
By considering these points while planning the video structure, you can create a script smoothly.
2. Read out the narration script text with Ondoku
Once the script is complete, the next step is to read out the narration audio with 『Ondoku』.
To create the narration, open the 『Ondoku』 top page from here.
Paste the content of the script into the text box.

If it is set to another language, set the language to match the narration script text.

Select the voice type, such as female or male.

For example, in Japanese, you can select from over 16 types of voices from women, men, and children!
You can listen to samples on this page, so please take a look.
With 『Ondoku』, you can also adjust the pitch of the voice and the reading speed.
However, when using it for the first time, it is fine to leave it at the default settings.

Now you are ready to read out the narration script text.

Press "Read" to start generating the narration audio!
The reading of the narration script text will be completed quickly, so wait with the screen open.
For example, for a script text of 5,000 characters, the reading is completed in just a few seconds.
Once the audio generation is complete, the screen will switch and an audio player will be displayed.

3. Check the narration audio and download it if there are no issues
Listen to the read-aloud audio, and if there are no problems, press "Download" to save the audio file.

Downloading audio in segments is also recommended
When downloading audio from 『Ondoku』, the split function is something you should definitely use.
To use the split function, first open the reading history page of 『Ondoku』.

When you open the history page, on the right side, there are menus for:
- Show all text
- Split
- Delete

When you click "Split," the split download page opens.

Enter the "Interval" (pause).
The unit for the interval is milliseconds, so if it is "300," the file will be split when the pause 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."
When you press "Split and Download," the audio splitting process begins.

Once the splitting process is finished, a ZIP file will be downloaded automatically.

When you unzip the ZIP file, the MP3 files are split like this.

Now you just need to load them into your video editing software!
4. Correct the narration audio if it feels unnatural
If the read-aloud audio feels unnatural, you can correct it.
Correcting the timing of pauses
The timing of pauses can be easily corrected with punctuation marks.
For details, please see this article.
Adjusting intonation
When adjusting intonation,
- Add punctuation marks.
- Try adding brackets.
- Try changing to Kanji, Katakana, or Hiragana notation.
- Try changing to Kanji for homophones.
By doing this, the intonation will change.
Please also see this article.
For example, between the notation "文章読み上げソフト" and the notation "文章読み上げそふと," the intonation changes slightly when read aloud by 『Ondoku』.
Therefore, when the 『Ondoku』 operation staff creates narration, they input "文章読み上げそふと" for reading.
Unfortunately, spaces, exclamation marks, and question marks have no relation to intonation.
SSML can also be used
It is also possible to adjust using SSML (Speech Synthesis Markup Language).
For more details on SSML, please also see this article.
5. Import the downloaded narration audio into video editing software

Import the downloaded video narration audio into your video editing software.
If you downloaded the entire audio file at once, you can just import the audio file as it is.
If you used split download, the filenames will be sequential like 0.mp3, 1.mp3, 2.mp3, so you can import them in order just by dragging and dropping them into the video editing software.
6. Edit the timing of the pauses in the narration audio

In videos, narration often requires a certain amount of pausing, doesn't it?
This is because reading everything at once can sometimes make it difficult for viewers to understand.
To take pauses effectively, try spacing out the audio intervals little by little on the timeline of your video editing software.
If you downloaded the entire audio file, split the parts where you want to add an interval using the "Cut Tool" or "Razor Tool."
For example, in the case of Adobe Premiere Pro, you can split it with the "Razor Tool" in the menu.

If you used split download, for each file, leave a gap between audio files so that the interval is just right.
By editing this way, the timing changes, resulting in a video that is easier to watch.
7. A YouTube video with easy-to-hear narration is complete!

By performing these tasks, the video narration is complete.
After this, please proceed with video editing as you like.
When monetizing videos or using them for business, please also take a look at Ondoku's commercial use rules.
Why not try making a video narration with Ondoku?
This time, we introduced the method that 『Ondoku』 operation staff usually use when making videos.
When making a YouTube video, a little bit of effort leads to wonderful narration.
There might be even better ways, so if you know any, please let us know.
This "How to add YouTube video narration" article also explains narration in detail, so please take a look at it as well.
The use of 『Ondoku』 audio on YouTube has been increasing.
Reading by text-to-speech software has evolved much more than before.
You can read aloud with realistic and easy-to-hear audio that is so wonderful you might not even realize it's text-to-speech software.
You can create narration audio for YouTube videos for free, so why don't you experience 『Ondoku』 yourself?
■ 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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