Human hearing lacks sensitivity toward___________?
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Answer: A. Frequency distortion
Explanation
The human auditory system processes complex sound waves by analyzing spectral and temporal components with varying sensitivity. Experimental psychoacoustic tests demonstrate that human ears tolerate significant phase and frequency response variations quite well. Amplitude and harmonic distortions are perceived much more readily by human listeners than simple frequency response irregularities. Frequency distortion occurs when different frequency components of an audio signal are amplified by unequal amounts. Psychoacoustics is the scientific study of sound perception and audiology concerning human physiological hearing mechanisms. The human ear acts as a natural frequency analyzer but is remarkably forgiving of minor linear phase and frequency shifts.
Amplitude distortion changes the waveform shape and introduces harsh harmonics that human ears detect and find very annoying. Frequency as well as amplitude distortion includes amplitude errors which humans are definitely sensitive to, making it incorrect. Phase distortion is also less noticeable to human hearing, confirming that frequency distortion lacks the high sensitivity of amplitude.
- Subject
- Engineering
- Category
- Electrical Engineering
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- —
- Difficulty
- medium
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