In the frequency domain, filters are often described by visualizing the frequencies that are able to “pass” through them.
True
Suppose that white noise is used as the input to a filter. Upon examining the output, it is found that frequencies between 400-900 Hz remain and the rest have been attenuated. What shape of filter was used?
bandpass filter
A ____ filter can be made by passing a signal in series through a low-pass and a high-pass filter.
A ____ filter can be made by passing a signal in parallel through a low-pass and a high-pass filter and then the results of the two are mixed.
bandpass
notch
Suppose that white noise is used as the input to a filter. Upon examining the output, it is found that frequencies between 200-600 Hz remain and the rest have been attenuated. What shape of filter was used?
bandpass filter
Suppose we have a band pass filter whose -3dB cut-off points are set at 700Hz and 3000Hz. What is the bandwidth of the filter?
2300
An impulse and white noise are similar in the time domain.
false
