Decimation (signal processing) and Digital audio

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Difference between Decimation (signal processing) and Digital audio

Decimation (signal processing) vs. Digital audio

In digital signal processing, decimation is the process of reducing the sampling rate of a signal. Digital audio is audio, or simply sound, signal that has been recorded as or converted into digital form, where the sound wave of the audio signal is encoded as numerical samples in continuous sequence, typically at CD audio quality which is 16 bit sample depth over 44.1 thousand samples per second.

Aliasing

In signal processing and related disciplines, aliasing is an effect that causes different signals to become indistinguishable (or aliases of one another) when sampled.

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Analog-to-digital converter

In electronics, an analog-to-digital converter (ADC, A/D, or A-to-D) is a system that converts an analog signal, such as a sound picked up by a microphone or light entering a digital camera, into a digital signal.

Analog-to-digital converter and Decimation (signal processing) · Analog-to-digital converter and Digital audio · See more »

Anti-aliasing filter

An anti-aliasing filter (AAF) is a filter used before a signal sampler to restrict the bandwidth of a signal to approximately or completely satisfy the sampling theorem over the band of interest.

Anti-aliasing filter and Decimation (signal processing) · Anti-aliasing filter and Digital audio · See more »

Compact disc

Compact disc (CD) is a digital optical disc data storage format that was co-developed by Philips and Sony and released in 1982.

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Digital signal processing

Digital signal processing (DSP) is the use of digital processing, such as by computers or more specialized digital signal processors, to perform a wide variety of signal processing operations.

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Hertz

The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI) and is defined as one cycle per second.

Decimation (signal processing) and Hertz · Digital audio and Hertz · See more »

Nyquist frequency

The Nyquist frequency, named after electronic engineer Harry Nyquist, is half of the sampling rate of a discrete signal processing system.

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Sample-rate conversion

Sample-rate conversion is the process of changing the sampling rate of a discrete signal to obtain a new discrete representation of the underlying continuous signal.

Decimation (signal processing) and Sample-rate conversion · Digital audio and Sample-rate conversion · See more »

Sampling (signal processing)

In signal processing, sampling is the reduction of a continuous-time signal to a discrete-time signal.

Decimation (signal processing) and Sampling (signal processing) · Digital audio and Sampling (signal processing) · See more »

Upsampling

In digital signal processing, upsampling can refer to the entire process of increasing the sampling rate of a signal, or it can refer to just one step of the process, the other step being interpolation.

Decimation (signal processing) and Upsampling · Digital audio and Upsampling · See more »