Suppose that sine wave interference has been inadvertently added to an audio signal that has frequency components ranging from 20Hz to 15 kHz. The frequency of the interference slowly varies in the range 950 to 1050Hz. A filter that attenuates the interference by at least 20 dB and passes most of the audio components is desired. What type of filter is needed? Sketch the magnitude Bode plot of a suitable filter, labeling its specifications.