英文關鍵字
1920x1080
amplifier
amplitude
audio
background
black
blue
broadcast
computer
concepts
control
design
display
down
electric
element
entertainment
equalizer
equipment
fingers
frequency
graphic
gray
growth
hahd
hidef
input
knob
level
light
maximum
meter
mix
music
musical
player
radio
receiver
recorder
sound
speaker
stereo
studio
technology
track
tuned
user
voice
volume