英文關鍵字
alarm
alpha
animation
audio
background
channel
chroma
communication
earphone
green
high
icon
icons
illustration
internet
key
listen
logo
loudspeaker
media
megaphone
multimedia
music
musical
noise
play
podcast
radio
record
resolution
sound
speaker
stereo
studio
symbol
technology
voice
volume
waveform
web
website