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
indicating
performance
noise
horizontal
working
loud
flicker
bulb
aux
recording
yellow
measurement
left
macro
recorder
quality
metering
device
musical