No background music and black screen?

I was creating videos of tennis racquets for many different racquets like yonex ,babolat, wilson clash 100 and babolat aero pure racquet. When video is created there is no background music and after few sec screen is black? any solution for this.

Sorry, this is unclear. Were you recording videos of these items? Were you playing music in the background while recording?

playing music in background while recording…

I’m assuming you recorded with Jibri, right?
Maybe check to make sure mic is not muted?

mic is not muted…

Post your Jibri and Jicofo logs

where i can find them

/var/log/jitsi/

ok i will try to send