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In trying to raise the quality and popularity of AM broadcasting, a study explored listeners` attitudes toward transmission and receiver bandwidths. Results suggest that for highly compressed audio, such as rock or pop music, listeners heard very little difference between 7 and 10 kHz. However, for audio with fewer masking characteristics, such as speech and classical music, listeners preferred lower bandwidths of 5 to 7 kHz because they reduced real-world noise from adjacent channels. More is less; 7 kHz may be optimum for AM broadcasting.
Author (s): Sheffield, Ellyn G.; Kean, John
Affiliation:
Psychology Department, Towson University, Towson, MD, USA; NPR Labs, National Public Radio, Washington, DC, USA
(See document for exact affiliation information.)
Publication Date:
2009-05-06
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Sheffield, Ellyn G.; Kean, John; 2009; Participant Testing of AM Broadcast Transmission Bandwidth and Audio Performance Measurements of Broadcast AM Receivers [PDF]; Psychology Department, Towson University, Towson, MD, USA; NPR Labs, National Public Radio, Washington, DC, USA; Paper ; Available from: https://aes2.org/publications/elibrary-page/?id=14820
Sheffield, Ellyn G.; Kean, John; Participant Testing of AM Broadcast Transmission Bandwidth and Audio Performance Measurements of Broadcast AM Receivers [PDF]; Psychology Department, Towson University, Towson, MD, USA; NPR Labs, National Public Radio, Washington, DC, USA; Paper ; 2009 Available: https://aes2.org/publications/elibrary-page/?id=14820
@article{sheffield2009participant,
author={sheffield ellyn g. and kean john},
journal={journal of the audio engineering society},
title={participant testing of am broadcast transmission bandwidth and audio performance measurements of broadcast am receivers},
year={2009},
volume={57},
issue={5},
pages={326-337},
month={may},}