oktavbåndfiltre
An oktavbåndfilter, also known as an octave band filter, is a type of frequency-selective filter used in signal processing and acoustic analysis. It divides a signal's frequency spectrum into a series of bands, where each band has a width that is one octave. An octave is a doubling of frequency. For example, if one band covers the frequencies from 100 Hz to 200 Hz, the next band would cover 200 Hz to 400 Hz, and so on. This logarithmic scaling of bandwidth is characteristic of octave band filters.
These filters are commonly employed in applications where analyzing the distribution of sound energy across different
The center frequency of each octave band is typically chosen such that the geometric mean of its