A filter with a single transmission band extending from lower to upper cutoff frequencies The width of the band is determined by the separation of frequencies at which amplitude is attenuated by 3 dB (0 707)
The filtering of sound within specified frequency limits or frequency bands The audible frequency range is often subdivided into octave, one-third octave or other fractions of octave bands
A filter which passes only signal frequencies within a specified, continuous band, and predictably attenuates frequencies above and below the continuous band
A filter that allows frequencies between two cut-off frequencies to pass while attenuating frequencies outside the cut-off frequencies ; a band-pass filter can be constructed as the composition of a low-pass filter and a high-pass filter