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← TechnologyWhich processing constraint induces aliasing distortion during audio signal resampling?
A)Insufficient anti-aliasing filtering✓
B)Quantization bitrate exceeding limit
C)Excessive decimation filter order
D)Inadequate channel equalization usage
💡 Explanation
Aliasing occurs because the Nyquist-Shannon sampling theorem mandates that anti-aliasing filters remove frequencies above half the new sampling rate before downsampling. Therefore, insufficient anti-aliasing filtering introduces frequencies misinterpreting as lower ones, rather than the intended signal being accurately reconstructed.
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