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|Figure: Here only 1 band - frequencies between 5-10kHz are passed.]]
[[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 [[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]], which used band-pass filters to divide the whole [[frequency]] range (full [[bandwidth]]) into 32 [[subband|subbands]] which can be then processed separately.
 
[[Category:Signal Processing]]

Latest revision as of 20:31, 15 September 2006

Band-pass filter "passes" (preserves) a certain range of frequencies (that is, a band), while removing everything else.

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.