Function illustration

Dubbing

- Support to set start and end position, add more dubbing.
- Support to set original voice volume.
- Support cancel dubbing.
Background music

- Support to set start and end position, add more background music.
- Support to add local music or music from cloud.
- Support music fade in and fade out.
- Support music segment interception.
- Support to set original voice volume.
- Compatible with format such as mp3、wma、wav、flac、AAC and etc.