As I love singing, and found these karaoke applications charging bomb for using their songs.It really pushed me to have inhouse application where I can sing unlimited song without paying anyone or watching ads for hours.

• Suppress the vocal from the streao songs(local mp3, mp4 files)
• Records the song(do put earphones while recording the karaoke song)with the background audio
• Applies Gain filter , However i tried applying one small filter (gain filter)
• Save the recorder song in user preferred location

• Error codes need to be passed , to be precise about the errors (from decoder , or exporter)
• Vocal suppression may not work for all songs , may in future if I get some ML model which detects the vocals in the songs would be helpful
• Audio latency is the issue, if someone could help me to fix that would be greateful
• Additional audio filters on the karaoke.

Need more details on the SDK please follow my medium article karaoke-sdk