Creating my Speech Video
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In my previous post, I explained how to extract the narration audio as an MP3 file.
Now, I’ll explain how I create my own speech videos by mimicking the narration.
Using Software
I use the following free software:
| Software | Description |
|---|---|
| Audipo (only in Japanese) | An audio player app for smartphones that allows speed adjustments and repeat settings. |
| VLC media player | A media player for desktop PCs that lets you adjust video speed and set repeat settings.It can also control MP3 audio files without video. |
| iPhone Camera App | To record my speech. |
| YouTube | For uploading and sharing videos. |
Note
Detailed setup and operation instructions for each software are omitted here.After extracting the narration audio, I use Audipo or VLC media player to adjust the playback speed and practice my speech.
I keep practicing until I can accurately replicate the narration.

The image above shows my script narration audio playing at 90% speed in the Audipo app.
I also insert yellow triangle markers to separate each sentence.
If I encounter unfamiliar expressions or parts that are too fast, I use the A-B section repeat function to slow down the playback and practice those sections until they feel natural and I can say them accurately.
Finally, I record my speech on my iPhone without relying on the script or narration audio.
I then upload the video to YouTube and set it to ‘unlisted’ so only people with the URL can view it.
I prefer not to broadcast my videos widely.
This training method might take some time, but thoroughly practicing and recording these videos is a great way to track my progress.
I believe that with this effort, I will eventually be able to speak English spontaneously and confidently in my own words.