First, open the third-party tool, then click to shoot video or upload the required video from the album in the main interface, click the soundtrack and select the required background music.
How can Apple record music when it records video on its mobile phone? Let's take a look ~ How does Apple record music on its mobile phone? Slide down from the right side of the screen to open the Control Center, and press and hold the screen recording icon. Select to turn on the microphone, and then start recording.
Slide the home screen up as shown in the figure below. Then press and hold the on-screen recording button, as shown in the figure below. Then click to turn on the microphone, as shown in the figure below. Click start recording, as shown in the figure below. After the recording starts, it will automatically return to the main screen, and you can record the operation as needed.