User manual
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position the subtitle appears at, and press and hold the left or right end and
slide inwardly to increase or decrease the duration the subtitle appears for.
Adding Music
Tap Music and add suitable background music to the video. Soloop
recommends music styles to you based on the video content, so you don't
need to worry about the choice of music. The music library is updated
regularly and follows trends to satisfy your ears at any time. You can also
tap Local Music to add music locally stored on the mobile phone.