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Audio filter |  | Audio filter: Encyclopedia - Audio filter |  | | An audio filter is a type of filter used for processing sound signals. Many types of filters exist for applications including graphic equalizers, synthesizers, sound effects, CD players and virtual reality systems.
An audio filter is typically designed to pass some frequency regions through unattenuated while significantly attenuating others. In some applications, such as in the design of graphic equalizers or CD players, the filters are designed according to a set of objective criteria such as pass band, pass band attenuation, ...
|  | | Audio filter, Audio crossover, Electronic filter, Equalization filter |  | |
|  |  | Audio filter: Encyclopedia - Audio filter
Audio filter
An audio filter is a type of filter used for processing sound signals. Many types of filters exist for applications including graphic equalizers, synthesizers, sound effects, CD players and virtual reality systems.
An audio filter is typically designed to pass some frequency regions through unattenuated while significantly attenuating others. In some applications, such as in the design of graphic equalizers or CD players, the filters are designed according to a set of objective criteria such as pass band, pass band attenuation, stop band, and stop band attenuation, where the pass bands are the frequency ranges for which audio is attenuated less than a specified maximum, and the stop bands are the frequency ranges for which the audio must be attenuated by a specified minimum.
In other applications, such as with synthesizers or sound effects, the aesthetic of the filter must be evaluated subjectively.
Audio filters can be implemented in analog circuitry as analog filters or in DSP code as digital filters.
Non-linear filters are also used in audio applications: for example, compressors, fuzz boxes, ring modulators.
See also
- Audio crossover
- Electronic filter
- Equalization filter
Categories: Filter theory | Audio engineering
Other related archivesAudio crossover, Audio engineering, CD, DSP, Electronic filter, Equalization filter, Filter theory, analog filters, audio, compressors, design, digital filters, filter, frequency, fuzz boxes, graphic equalizers, pass band, ring modulators, signals, sound, sound effects, synthesizers, unattenuated, virtual reality
 Adapted from the Wikipedia article "Audio filter", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki |
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