Bandpass filter: Difference between revisions
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Band-pass filter "passes" (preserves) a certain range of frequencies (that is, a band), while removing everything else. | Band-pass filter "passes" (preserves) a certain range of frequencies (that is, a band), while removing everything else. | ||
[[Image:Bandpass.png|none|frame| | [[Image:Bandpass.png|none|frame|Here only 1 band - frequencies between 5-10kHz are passed.]] | ||
Band-pass filters are used e.g in [[MP3]] encoder [[ | 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 [[subband|subbands]] which can be then processed separately. | ||
[[Category:Technical]] | |||
[[Category:Digital Signal Processing]] | [[Category:Digital Signal Processing]] | ||
Revision as of 22:45, 8 September 2006
Band-pass filter "passes" (preserves) a certain range of frequencies (that is, a band), while removing everything else.
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.