24. Band-reject Filters
The band-reject filter, one more common filter in many synthesizers, attenuates a specified portion of frequencies from a larger band of frequencies.
![Background of animation.](animationFiles/nonFlash/24_1/images/bg.png)
![Soundwave representation.](animationFiles/nonFlash/24_1/images/highPass.png)
![Blue soundwave representation.](animationFiles/nonFlash/24_1/images/highPassBlue.png)
![Filtered soundwave.](animationFiles/nonFlash/24_1/images/filtered.png)
![Blue filtered soundwave.](animationFiles/nonFlash/24_1/images/filteredBlue.png)
![starting state of animation.](animationFiles/nonFlash/24_1/images/starter.png)
Example 24-1: A band-reject filter attenuates frequencies within the specified band of frequencies.