Methods to try when you want to adjust intonation and inflection in Ondoku

Jan. 26, 2026

Methods to try when you want to adjust intonation and inflection in Ondoku

Ondoku is a text-to-speech site that reads sentences as smoothly as if a real person were reading them, just by entering text into the text box and pressing the read button.

It is very excellent, and looking at the reviews, I get the impression that there are many high ratings for its reading quality.

However, sometimes when you have it read for you,

  • The intonation is strange
  • The accent is strange
  • The modulation is strange

it may read words or sentences that feel this way.

What should you do when you want to adjust the intonation in Ondoku?

Here, we will explain about intonation in Ondoku.

Can intonation and modulation be adjusted in Ondoku?

In Ondoku, adjusting intonation and modulation is possible if you try, but it is difficult to adjust them exactly as you wish.

It cannot be adjusted easily like other software.

Depending on the text-to-speech software, it is possible to adjust the intonation.

Each sound read has a mark, and the intonation can be adjusted by moving them up and down.

It would be great if Ondoku had such a feature, but unfortunately, it does not.

So, how should you adjust the intonation if you want to do so in Ondoku?

How to adjust intonation even slightly

If you want to adjust the intonation even slightly in Ondoku,

  • Hiragana
  • Katakana
  • Kanji
  • Alphabet
  • Punctuation

you can adjust the intonation and modulation to some extent by making full use of these.

What does that mean?

you might wonder.

For words

For example,

エクササイズ

when you read the word

エクササイズ

for some reason, the accent ends up towards the end, resulting in an unfamiliar intonation.

Therefore,

  • Hiragana and
  • Katakana

let's try creating and reading a word that mixes these.

エクささいず

How about this time? For some reason, it sounds a bit like there's a question mark, but the accent has moved forward compared to reading it only in Katakana, making it a more familiar accent.

For sentences

The trick to adjusting intonation in sentences is to insert more punctuation marks than you might think.

For example, if you read this sentence as is,

文章の時にイントネーションを調整するコツは、あなたが思っているよりもたくさんの句読点を入れるということです。

it sounds like this.

So, let's try putting more commas "、" in the sentence.

文章の時に、イントネーションを調整するコツは、あなたが思っているよりも、たくさんの句読点をいれる、ということです。

By adding more commas "、" like this, it will read smoothly as if a real person were reading.

It shows that there are many pauses in everyday conversation.

Can pauses and blank spaces be adjusted?

In addition to intonation,

some people wonder, "Can I adjust pauses or the blank space between sentences?"

Pauses and blank spaces can be accurately adjusted by using a tag called SSML.

However, caution is required when using SSML.

Like programming code, SSML will cause an error if there is even a single character error in the input.

Please ensure accurate input when entering it.

Detailed methods for adjusting pauses using SSML are introduced in this blog.

How to adjust pauses and blank space in Ondoku reading [2 types] | Text-to-speech software Ondoku

How to adjust pauses and blank space in Ondoku reading [2 types] | Text-to-speech software Ondoku

One of the needs of Ondoku users is "I want to have a bit more of a pause." For adjusting "pauses" when you want to open up a little space, there are two types of adjustment methods: 1. Punctuation and 2. SSML.

Ondoku is such an easy-to-use text-to-speech site that many people are surprised at how easily speech synthesis can be done.

  • Without free membership registration: 1,000 characters per month
  • With free membership registration: 5,000 characters per month

can be used for free.

Seeing is believing. Access Ondoku right now and try out the latest speech synthesis technology!

■ 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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"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