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Converts electrical energy into acoustic energy, allowing sound to be amplified and heard by an audience.

Captures acoustic energy and converts it to electrical energy. Commonly used in recording and broadcasting.

Uses the piezoelectric effect to convert electrical signals into mechanical vibrations or vice versa, often used in high-frequency applications.

The process of making the input impedance of an electrical load equal to the output impedance of the source to maximize power transfer and minimize reflections.

Captures electromagnetic energy from a source, such as a guitar string, and converts it to an electrical signal.

Uses a diaphragm attached to a coil of wire in the magnetic field of a magnet to capture sound and convert it into an electrical signal, often used on stage for live performances.

Converts electrical energy into ultrasound waves and vice versa, typically used in medical imaging and industrial non-destructive testing.

Detects sound vibrations from a distance by using a laser beam and measuring the modulations caused by the sound on the reflected light, often used in surveillance.

A mathematical algorithm used to transform time-domain data into frequency-domain data, enabling the analysis of signal frequencies and amplitudes.

Algorithms designed to detect and reduce echo in audio communication systems to improve speech clarity.

Employs a permanently charged material to form a capacitor with a fixed charge, providing a stable electrical pattern in response to sound.

The phenomenon where sound loops between an audio output and input device, such as a microphone and loudspeaker, causing a loud noise.

Uses a capacitor with a variable distance between the plates to convert sound pressure into an electrical signal, often used in studio recording.

The use of materials and techniques to protect electronic equipment from electromagnetic interference, which can cause noise and disruptions in audio signals.

Structures used to direct the transmission of sound waves, commonly found in loudspeaker and horn designs to control dispersion and enhance efficiency.

A device used to measure the pressure level of sound, quantifying the perceived loudness of noise.

Uses an additional noise-cancelling signal to reduce unwanted sound by destructive interference, commonly found in noise-cancelling headphones.

Converts digital audio signals into analog signals so that electronic devices like speakers can create sound that humans can hear.

Uses a thin metal ribbon suspended in a magnetic field to detect sound and translate it into an electrical signal, known for its sensitivity and natural sound.