A sound engineer plays a recording of two flutes alternating notes. In one version, notes from one flute are high and notes from the other are low. In a sec...
Question 1 Report
A sound engineer plays a recording of two flutes alternating notes. In one version, notes from one flute are high and notes from the other are low. In a second version, both flutes play within the same pitch range. Listeners report hearing separate melodies more often in the first version.
(a) Name the Gestalt principle most relevant to this finding. [1]
(b) Explain why listeners separate the melodies more easily in the first version. [2]
(c) Outline one application of this knowledge in a public announcement system. [2]
Answer Details
(a) Similarity [1] (b) Notes of similar pitch are grouped together perceptually [1]; the different pitch ranges allow the brain to organise each flute's notes into separate streams [1]. (c) Use a clearly different pitch or voice for important announcements [1]; so the message is separated from background sounds and is easier to perceive [1].
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