In comparison, the auditory memory entails the recall of the sensory attributes of sound (rote memory). Second, research shows that visual memory centers on the recovery of the predominant features of an object, including shape and size (Chaudhuri, 2012). In contrast, the function of ‘audition’ is to discern sounds and related attributes such as loudness and pitch (Foley & Matlin, 2010). First, the role of visual sensation is to perceive visible cues that allow us to visualize objects within the visual field. The differences between vision and audition are very significant. Another commonality between audition and vision is perceptual closure, i.e., the capacity to discern auditory stimuli (sounds) or visual signal (figures) delivered in an incomplete form (Chaudhuri, 2012). Both cognitive processes help us discriminate acoustic cues or visible objects and separate them from their backgrounds. Visual and auditory discrimination are also similar. Another similarity relates to their spatial structure, i.e., they can perceive light from various directions (vision) and sounds of multiple frequencies (audition) (Moulin-Frier & Arbib, 2013). Although the stimulus in each case is different, the two sub-organs are similar in the sense that they convert stimuli (sound or visual signals) into neural pulses that are passed to the brain. The loci of auditory and visual stimuli are the basilar membrane and retinal wall, respectively (Moulin-Frier & Arbib, 2013). However, the two channels appear to support each other in instances such as following directions, audiovisual speech perception, writing, etc. Question: How would you cancel tone combinations perceived by a listener? Vision and AuditionĪn auditory percept is considered a distinct entity from a visual percept. Therefore, my perceptual experience will include the sensation of the non-acoustic combination tones resulting from the simple tones played at the concert. They are the outcome of nonlinear transmission, whereby the ear cannot discriminate between real components and false ones. Simple tones played at high amplitudes and equal frequencies result in the sensation of tone combinations (Foley & Matlin, 2010). Based on this perceptual characteristic, I will discriminate between two simultaneous tones with comparable loudness and pitch or identify the timbre of different sound sources. The musicians can amplify the different instruments to varying levels or reduce the tone intensity to signal transitions, which the listener subjectively perceives as mixed loudness.Īnother quality of subjective perception of music is timbre, which is the “distinctive sound signature of a source” (Foley & Matlin, 2010, p. Loudness refers to the “intensity of sound pressure level” that ranges from the softest (PPP) to the loudest (fff) based on the frequency of the sound signals (Foley & Matlin, 2010, p. In a perceptual sense, I will perceive the tonality of the musical composition as either consonant (harmonic) or dissonant (inharmonic) based on major or minor note intervals. Tonality describes the systematic organization of tones in a piece of music in major or minor diatonic scales (Chaudhuri, 2012). Pitches can be ordered hierarchically based on predefined relations or harmonic idioms.
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