acoustic

acoustical

adjusting

amp

amplifier

analog

audio

background

board

broadcast

broadcasting

button

channel

closeup

concept

concert

console

control

desk

digital

editing

electronic

engineer

engineering

entertainment

equalizer

equipment

industrial

industry

instrument

knob

level

media

mix

mixer

mixing

music

musical

panel

producer

production

radio

record

sound

stereo

studio

switch

technology

volume