How to insert audio into PowerPoint! Use Ondoku for a higher-grade presentation.

Sept. 13, 2021

How to insert audio into PowerPoint! Use Ondoku for a higher-grade presentation.

When making PowerPoint slides, it may gradually become a rut, or you may feel that a little ingenuity is not enough.

Therefore, it is recommended to put audio on the slide.

Just by adding narration voice, you can make presentations smoothly and create amazing slides.

How to insert audio file in PowerPoint

Video description: 1 minute 55 seconds ~

It's actually easy to create an audio file that you can put in a slide such as PowerPoint.

What to prepare

  • The manuscript you want to read aloud,
  • Slides where you want to put audio,
  • Ondoku's website.

Make narration

1. 1. Prepare the manuscript you want to read aloud

First, prepare the manuscript you want to read aloud.

The manuscript can be a PowerPoint notebook, or you can prepare it in another software.

2. Copy and paste the manuscript to Ondoku

Then copy and paste the manuscript into Ondoku.

If you create an audio file by dividing it to some extent, such as for each slide, later work will be easier.

3. 3. Insert into slide

Finally, insert the audio file into the slide.

Insert audio file into PowerPoint

Video description: 2 minutes 35 seconds ~

The audio file formats that can be inserted into PowerPoint are wma, wav, mp3, m4a / mp4 (PowerPoint 2013 or later only), mid / midi, au, aiff.

Ondoku supports downloading in mp3 and wav formats.

Due to compatibility issues, inserting an mp3 format file downloaded with Ondoku may break the last few seconds.

In such a case, please download the wav format file and insert it.

If that doesn't work, try converting to another format and inserting.

How to insert audio into slides and presentations such as PowerPoint

From the toolbar

  1. Insert
  2. audio
  3. Audio on this computer

Please select.

Then, the screen for selecting the audio file will appear, so select the audio file you like.

When you select an audio file and insert it into a slide, a ? Mark will appear.

Click this icon and set when you want to play.

Change the start position of the audio file

To choose how to start the audio file, select the drop-down arrow and select an option.


Play automatically when you go to the slide where you placed the audio file.

When clicked

Play only when you click the icon.

* To select how to play the audio file in the presentation, select one of the following options.

Audition options

Play after switching slides

One audio file will be played on every slide.

Repeat until stopped

One audio file plays repeatedly until you click the Play / Pause button to stop it manually.

Rewind when playback is finished

Rewind the audio when playback is finished.

Change playback options

How to change options

Select the? Mark and select the Playback tab from the toolbar.

Choose your favorite option.

Option details


You can also crop the audio, and if you want to crop it, you can select Trim Audio and use the red and green sliders to trim the audio file to the appropriate length.

Fade out

You can fade in or out the audio.

Change the value in each box of Fade Duration.

Volume control

To adjust the volume, select Volume and select the desired setting.

Advantages and disadvantages of using Ondoku with PowerPoint

There are several other ways to add audio to PowerPoint.

What are the advantages and disadvantages of using Ondoku?


  1. Easy to use
  2. Easy to download
  3. Commercially available

1. 1. Easy to use

Ondoku is very easy to use.

Enter the text you want to read in the text box

Click the read aloud button

With just this, you can create a narration.

There are several types of voice, so you can choose your favorite voice and create narration.

2. Easy to download

It's also very easy to download.

Comes out after clicking the read aloud button

Click the download button

That's it.

There are no weird ads.

3. 3. Commercially available

When it comes to using it at work, I'm really worried about commercial use.

With voice synthesis software, the rules for commercial use are detailed and complicated, and it may not be possible to use it for commercial purposes.

In that respect, Ondoku is very easy.

Can be used for presentations such as PowerPoint.

If you want to use it for free, you can use it for commercial purposes by writing a credit.


  1. The slide may become heavy
  2. Credit notation is required for free use

1. 1. The slide may become heavy

When inserting narration voice with mp3 or wav, the file tends to be large and heavy.

Doing so will also increase the file size of the slide, which can be difficult to edit.

If you are concerned about the file size becoming large, try another method described below. It may be a little difficult to use, but it can prevent the file size from becoming large.

2. Credit notation is required for free use

If you want to use Ondoku for free presentations, you need to write credit.

Sometimes such credits get in the way in the business scene.

In that case, if you become a paid member of Ondoku (from 980 yen / month), there is a loophole that you do not have to write credits.

Other audio insertion methods

There are two ways to add narration to PowerPoint slides using a text-to-speech site like Ondoku.

  1. How to insert using a macro
  2. How to create and insert audio using standard PowerPoint features

How to insert using a macro


  • Windows 10 Home 1909
  • PowerPoint for Microsoft 365 version 2008 (build 13127.20409) 64bit

At the following site

PowerPoint with note-to-speech

Is distributed, and you can download it and create a macro to synthesize voice and insert narration into PowerPoint.

Please check the following site for detailed usage and download.

How to create and insert audio using standard PowerPoint features

1. 1. Add the [Read aloud] command to PowerPoint.

① Open PowerPoint and click [Customize Quick Access Toolbar] next to the Quick Access Toolbar.

(2) Select "Other commands".

2. Read aloud

Use the reading icon displayed in 1 to read the text aloud.

(1) Select the text you want to read out (text box in the slide or note) with the mouse.

② Click the [Read aloud icon] to start reading aloud.

* You cannot change the voice narrator in PowerPoint.

Please check the following site for detailed usage.

As with YouTube videos, watching videos with only text makes me tired of watching and reading text.

If there is narration in such a case, the slides will be sharp!

Please use it to make good slides by inserting audio into PowerPoint.

■ 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.
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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