Audio transducers and buzzers are used in electronic equipment, toys and various warning devices as the sounding component

Audio connectors are used to affix cables to other audio equipment, providing electronic signal transference and grounding protection

Digital audio systems electronically record and store audio signals such as voice, music, alarm, and security messaging for broadcast, editing, monitoring, and playback

Audio analyzers measure the noise and audio spectrum of output from an amplifier or a stereo

Audio amplifiers and preamplifiers are units that amplify a sound signal, which is then sent to a speaker or another amplifier

Audio switch matrices are electronic switching instruments for interfacing audio signals in scanning, recording and analysis systems

Specialized audio equipment is used in specific industries such as the recording industry, and for specialized applications such as voice digitizing and analysis