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

Signal generators and waveform generators are used to test and align all types of transmitters and receivers, to measure frequency and to generate a signal, waveform or noise source.

Oscillators are devices that are used to generate repetitive signals.

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

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

Audio amplifiers are used in circuits and systems to process audio signals

Audio transformers are involved in the transmission of voice or sound signals.