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Physical Sciences & Mathematics

An audio engineer uses a graphic equalizer to modify a music signal. Which process is responsible for attenuating certain frequency bands to eliminate feedback?

A)Time-domain signal averaging
B)Discrete cosine transformation
C)Convolution with a filter kernel
D)Wavelet decomposition compression

💡 Explanation

Attenuation occurs due to convolution with a filter kernel, which selectively reduces the amplitude of specific frequency components in the signal. This is because convolution in the time domain corresponds to multiplication in the frequency domain; therefore, the equalizer reshapes the signal's frequency spectrum, rather than using averaging or data compression techniques.

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