Temporal masking - Citizendia

Temporal masking or "non-simultaneous masking" occurs when a sudden stimulus sound makes inaudible other sounds which are present immediately preceding or following the stimulus. Sound' is Vibration transmitted through a Solid, Liquid, or Gas; particularly sound means those vibrations composed of Frequencies Loudness is the quality of a Sound that is the primary psychological correlate of physical strength (amplitude Masking that obscures a sound immediately preceding the masker is called backward masking or pre-masking and masking that obscures a sound immediately following the masker is called forward masking or post-masking. Temporal masking's effectiveness attenuates exponentially from the onset and offset of the masker, with the onset attenuation lasting approximately 20 ms and the offset attenuation lasting approximately 100 ms.

Similar to simultaneous masking, temporal masking reveals the frequency analysis performed by the auditory system; forward masking thresholds for complex harmonic tones (e. In acoustics simultaneous masking is masking between two concurrent sounds The auditory system is the Sensory system for the sense of hearing. g. , a sawtooth probe with a fundamental frequency of 500 Hz) exhibit threshold peaks (i. The fundamental tone, often referred to simply as the fundamental and abbreviated fo, is the lowest frequency in a harmonic series. e. , high masking levels) for frequency bands centered on the first several harmonics. In fact, auditory bandwidths measured from forward masking thresholds are narrower and more accurate than those measured using simultaneous masking.

Temporal masking should not be confused with the ear's acoustic reflex, an involuntary response in the middle ear that is activated to protect the ear's delicate structures from loud sounds. The ear is the sense organ that detects Sounds The Vertebrate ear shows a common biology from Fish to Humans with variations The acoustic reflex ( stapedius reflex, attenuation reflex, or auditory reflex) is an involuntary Muscle contraction that occurs in the Middle Sound' is Vibration transmitted through a Solid, Liquid, or Gas; particularly sound means those vibrations composed of Frequencies

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