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High-frequency sound components of high-resolution audio are not detected in auditory sensory memory

Psychology

High-frequency sound components of high-resolution audio are not detected in auditory sensory memory

H. Nittono

Discover the intriguing findings of Hiroshi Nittono's research, which reveals that high-frequency sound components typical of high-resolution audio may not be processed distinctly in our auditory cortex. This study sheds light on the elusive perception of audio quality—could the superiority of high-resolution audio be more myth than reality?

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Playback language: English
Abstract
This study investigated whether high-frequency sound components (>22 kHz), a characteristic of high-resolution audio, are distinctly processed in the auditory cortex. Mismatch negativity (MMN), an electrocortical index of auditory deviance detection, was measured in 38 young adults with normal hearing using white noise bursts with and without high-frequency components. No MMN response was elicited by the removal of high-frequency components, and behavioral discrimination was at chance level. This suggests that the perceived superiority of high-resolution audio, if any, is not detectable at the cortical level.
Publisher
Scientific Reports
Published On
Dec 10, 2020
Authors
Hiroshi Nittono
Tags
high-frequency sound
auditory cortex
mismatch negativity
high-resolution audio
normal hearing
audio processing
perceived superiority

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