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

Abstract High-resolution digital audio is believed to produce a better listening experience than the standard quality audio, such as compact disks (CDs) and digital versatile disks (DVDs). One common belief is that high-resolution digital audio is superior due to the higher frequency (> 22 kHz) o...

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Autor principal:	Hiroshi Nittono
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e2b183b514b14b3d878d1a3b812bb698
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id	oai:doaj.org-article:e2b183b514b14b3d878d1a3b812bb698
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spelling	oai:doaj.org-article:e2b183b514b14b3d878d1a3b812bb6982021-12-02T11:43:36ZHigh-frequency sound components of high-resolution audio are not detected in auditory sensory memory10.1038/s41598-020-78889-92045-2322https://doaj.org/article/e2b183b514b14b3d878d1a3b812bb6982020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-78889-9https://doaj.org/toc/2045-2322Abstract High-resolution digital audio is believed to produce a better listening experience than the standard quality audio, such as compact disks (CDs) and digital versatile disks (DVDs). One common belief is that high-resolution digital audio is superior due to the higher frequency (> 22 kHz) of its sound components, a characteristic unique to this audio. This study examined whether sounds with high-frequency components were processed differently from similar sounds without these components in the auditory cortex. Mismatch negativity (MMN), an electrocortical index of auditory deviance detection in sensory memory, was recorded in young adults with normal hearing (N = 38) using two types of white noise bursts: original sound and digitally filtered sound from which high-frequency components were removed. The two sounds did not produce any MMN response and could not be discriminated behaviourally. In conclusion, even if high-resolution audio is superior to the standard format, the difference is apparently not detectable at the cortical level.Hiroshi NittonoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-7 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hiroshi Nittono High-frequency sound components of high-resolution audio are not detected in auditory sensory memory
description	Abstract High-resolution digital audio is believed to produce a better listening experience than the standard quality audio, such as compact disks (CDs) and digital versatile disks (DVDs). One common belief is that high-resolution digital audio is superior due to the higher frequency (> 22 kHz) of its sound components, a characteristic unique to this audio. This study examined whether sounds with high-frequency components were processed differently from similar sounds without these components in the auditory cortex. Mismatch negativity (MMN), an electrocortical index of auditory deviance detection in sensory memory, was recorded in young adults with normal hearing (N = 38) using two types of white noise bursts: original sound and digitally filtered sound from which high-frequency components were removed. The two sounds did not produce any MMN response and could not be discriminated behaviourally. In conclusion, even if high-resolution audio is superior to the standard format, the difference is apparently not detectable at the cortical level.
format	article
author	Hiroshi Nittono
author_facet	Hiroshi Nittono
author_sort	Hiroshi Nittono
title	High-frequency sound components of high-resolution audio are not detected in auditory sensory memory
title_short	High-frequency sound components of high-resolution audio are not detected in auditory sensory memory
title_full	High-frequency sound components of high-resolution audio are not detected in auditory sensory memory
title_fullStr	High-frequency sound components of high-resolution audio are not detected in auditory sensory memory
title_full_unstemmed	High-frequency sound components of high-resolution audio are not detected in auditory sensory memory
title_sort	high-frequency sound components of high-resolution audio are not detected in auditory sensory memory
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/e2b183b514b14b3d878d1a3b812bb698
work_keys_str_mv	AT hiroshinittono highfrequencysoundcomponentsofhighresolutionaudioarenotdetectedinauditorysensorymemory
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High-frequency sound components of high-resolution audio are not detected in auditory sensory memory

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