Difference between revisions of "Bandpass filter"
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Band-pass filters are used e.g in [[MP3]] encoder [[FilterBank|filterbank]], which used band-pass filters to divide the whole [[frequency]] range (full [[Bandwidth]]) into 32 [[subband|subbands]] which can be then processed separately. | Band-pass filters are used e.g in [[MP3]] encoder [[FilterBank|filterbank]], which used band-pass filters to divide the whole [[frequency]] range (full [[Bandwidth]]) into 32 [[subband|subbands]] which can be then processed separately. | ||
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Revision as of 22:37, 7 September 2006
Band-pass filter "passes" (preserves) a certain range of frequencies (that is, a band), while removing everything else.
Figure: Here only 1 band - frequencies between 5-10kHz are passed.
Band-pass filters are used e.g in MP3 encoder filterbank, which used band-pass filters to divide the whole frequency range (full Bandwidth) into 32 subbands which can be then processed separately.
