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- Filter_bank abstract "In signal processing, a filter bank is an array of band-pass filters that separates the input signal into multiple components, each one carrying a single frequency sub-band of the original signal. One application of a filter bank is a graphic equalizer, which can attenuate the components differently and recombine them into a modified version of the original signal. The process of decomposition performed by the filter bank is called analysis (meaning analysis of the signal in terms of its components in each sub-band); the output of analysis is referred to as a subband signal with as many subbands as there are filters in the filter bank. The reconstruction process is called synthesis, meaning reconstitution of a complete signal resulting from the filtering process.In digital signal processing, the term filter bank is also commonly applied to a bank of receivers. The difference is that receivers also down-convert the subbands to a low center frequency that can be re-sampled at a reduced rate. The same result can sometimes be achieved by undersampling the bandpass subbands.Another application of filter banks is signal compression, when some frequencies are more important than others. After decomposition, the important frequencies can be coded with a fine resolution. Small differences at these frequencies are significant and a coding scheme that preserves these differences must be used. On the other hand, less important frequencies do not have to be exact. A coarser coding scheme can be used, even though some of the finer (but less important) details will be lost in the coding.The vocoder uses a filter bank to determine the amplitude information of the subbands of a modulator signal (such as a voice) and uses them to control the amplitude of the subbands of a carrier signal (such as the output of a guitar or synthesizer), thus imposing the dynamic characteristics of the modulator on the carrier.".
- Filter_bank wikiPageID "1458651".
- Filter_bank wikiPageRevisionID "602256893".
- Filter_bank hasPhotoCollection Filter_bank.
- Filter_bank subject Category:Digital_signal_processing.
- Filter_bank subject Category:Linear_filters.
- Filter_bank subject Category:Wavelets.
- Filter_bank type Artifact100021939.
- Filter_bank type Device103183080.
- Filter_bank type Filter103339643.
- Filter_bank type Instrumentality103575240.
- Filter_bank type LinearFilters.
- Filter_bank type Object100002684.
- Filter_bank type PhysicalEntity100001930.
- Filter_bank type Whole100003553.
- Filter_bank comment "In signal processing, a filter bank is an array of band-pass filters that separates the input signal into multiple components, each one carrying a single frequency sub-band of the original signal. One application of a filter bank is a graphic equalizer, which can attenuate the components differently and recombine them into a modified version of the original signal.".
- Filter_bank label "Banco de filtros híbrido".
- Filter_bank label "Banco de filtros".
- Filter_bank label "Filter bank".
- Filter_bank label "Zespół filtrów".
- Filter_bank label "フィルタバンク".
- Filter_bank sameAs Banco_de_filtros_híbrido.
- Filter_bank sameAs フィルタバンク.
- Filter_bank sameAs Zespół_filtrów.
- Filter_bank sameAs Banco_de_filtros.
- Filter_bank sameAs m.0534qy.
- Filter_bank sameAs Q3268235.
- Filter_bank sameAs Q3268235.
- Filter_bank sameAs Filter_bank.
- Filter_bank wasDerivedFrom Filter_bank?oldid=602256893.
- Filter_bank isPrimaryTopicOf Filter_bank.