英文關鍵字
indicator
volume
music
led
audio
sound
equipment
dj
level
stereo
control
electronic
meter
light
vumeter
mixer
mixing
analog
closeup
decibel
desk
signal
broadcasting
console
lamp
green
radio
engineer
live
musical
peak
output
recording
consoling
technology
aux
professional
flicker
equalizer
amplifier
noise
flickering
bulb