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Signal processing is an electrical engineering subfield that focuses on analyzing, modifying and synthesizing signals, such as sound, images, potential...

An audio signal is a representation of sound, typically using either a changing level of electrical voltage for analog signals, or a series of binary...

signal, the instantaneous signal voltage varies continuously with the pressure of the sound waves. In contrast, a digital signal represents the original...

sound waves—longitudinal waves which travel through air, consisting of compressions and rarefactions. The energy contained in audio signals or sound power...

time varying signal. For example, in an analog audio signal, the instantaneous voltage of the signal varies continuously with the sound pressure. It differs...

the work sound like a duet. reverse echo – a swelling effect created by reversing an audio signal and recording echo and/or delay whilst the signal runs...

acoustic sound waves. Digital recording and reproduction converts the analog sound signal picked up by the microphone to a digital form by the process...

In signal processing, sampling is the reduction of a continuous-time signal to a discrete-time signal. A common example is the conversion of a sound wave...

sound is and relates to onset and offset signals created by nerve responses to sounds. The duration of a sound usually lasts from the time the sound is...

A sound reinforcement system is the combination of microphones, signal processors, amplifiers, and loudspeakers in enclosures all controlled by a mixing...

is a representation of sound recorded in, or converted into, digital form. In digital audio, the sound wave of the audio signal is typically encoded as...

For an audio signal, the relevant range is the band of audible sound frequencies (between 20 and 20,000 Hz). Such a signal is heard by the human ear as...

call sounded to signal "lights out" at the end of a military day, and during patriotic memorial ceremonies and military funerals conducted by the United...

electrical signals into sound (amplified signal → magnetic field → motion → air pressure) Microphones – convert sound into an electrical signal (air pressure...

called a mic (/maɪk/), or mike, is a transducer that converts sound into an electrical signal. Microphones are used in many applications such as telephones...

mixing audio signals, used in sound recording and reproduction and sound reinforcement systems. Inputs to the console include microphones, signals from electric...

foghorn or fog signal is a device that uses sound to warn vehicles of navigational hazards such as rocky coastlines, or boats of the presence of other...

the brightness, colors and sound are represented by amplitude, phase and frequency of an analog signal. Analog signals vary over a continuous range...

Soundproofing is any means of impeding sound propagation. There are several basic ways to reduce sound: increasing the distance between source and receiver...

algorithms for audio signal processing, specify the requirements for public address systems, carry out research on audible sound for video game console...