What is lowest filter order that will be needed for response

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Reference no: EM13275180

In designing a low-pass filter for an audio system, the filter stop band attenuation must be at least 40 dB at a frequency that is 2 times the passband frequency. The attenuation in the passband must be less than 1 dB. What is the lowest filter order that will be needed for a Butterworth response?

Reference no: EM13275180

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