How does PPT record its own voice?

First, open the PPT program, select "Insert" at the top of the main interface of PPT program, and click Open.

2. Then, in the Insert drop-down menu, select Movies and Sounds, select Recording, and click Open.

Third, click the red button in the window to start recording, and click the middle button to stop recording.

4. Then, select "First Button" in the window to play the recorded sound, and select "OK" to save the sound.

Finally, select the "speaker" sign on the PPT main interface to start playing the recorded sound, and the problem will be solved.