audio mixer in a studio, the automatic knobs moving up

audio electronics mixing sound mixer graphic equalizer audio equipment sound recording equipment broadcast music incorporated record - analog audio dj broadcast programming equipment radio dj control room fade in - video transition control panel music equalizer broadcasting music style electronics industry computer equipment control musical instrument fade out - video transition listening computer technology sea channel hd electronics store entertainment push button entertainment event musician listening party engineer professional occupation knob presenter 1080p digital tablet faded condition in a row e-mail switch wireless arts russia adjusting culture business e-commerce consoling butter outdoors