From the course: Electronics Foundations: Basic Circuits

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Challenge: Filter audio

Challenge: Filter audio

From the course: Electronics Foundations: Basic Circuits

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Challenge: Filter audio

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- [Narrator] It's time for another challenge. I just got a new subwoofer for my audio system. A subwoofer is a speaker that's specifically designed to play really low bass frequencies, typically in the range below 100 to 200 hertz. I need your help designing a filter to place between my audio source and the amplifier for my subwoofer to make sure it only gets low frequency signals. Your goal for this challenge is to design a passive RC filter consisting of a single resistor and a single capacitor. Your filter should attenuate the frequency components of an input signal that are above a minus three dB cutoff frequency of around 150 hertz. I'll allow for some flexibility in the requirements so you can stick with using common resistor and capacitor values. As long as the cutoff frequency is within plus or minus 10 hertz of the target, I'll consider that close enough. You should expect the output impedance of the audio…

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