Document Detail

Investigation of the effect of low frequency components of sound to speech intelligibility.
MedLine Citation:
PMID:  18189966     Owner:  NLM     Status:  In-Data-Review    
Sound attenuation depends on source-to-listener distance, the finishes, and the shape of the room. The amount of sound attenuation at different frequencies influences the overall speech intelligibility in a room. The sound at high frequencies, especially at 1 kHz and 2 kHz, contribute the most for the articulation of consonants, and thus affects speech intelligibility. However, it has been found previously that sound attenuation is lower and harder to achieve at lower frequencies. This would lead us to assume that reverberant sound is mostly of low frequency components. Even if the contribution of sound at low frequency is low for speech intelligibility, this paper attempts to gauge the effect of sound pollution at low frequencies to the overall speech intelligibility in the room. With fixed source-to-listener distances, the measurements were conducted in classrooms with different sizes and finishes.
Mokhtar Harun; Mohamad Ngasri Dimon; Siti Zaleha Abdul Hamid; Hamim Nasoha
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  122     ISSN:  1520-8524     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2007 Nov 
Date Detail:
Created Date:  2008-01-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3031     Citation Subset:  IM    
Acoust. Res. Lab., Faculty of Elec. Eng., Universiti Teknologi Malaysia Skudai, 81310 Skudai Johor, Malaysia.
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