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http://dx.doi.org/10.7471/ikeee.2012.16.4.395

Performance analysis of subjective Loudness meter with ITU-R BS. 1387-1 algorithm for digital audio  

Ngan, Nguyen Vo Bao (School of Information and Communication Engineering, Kongju National University)
Park, Seonggyoon (School of Information and Communication Engineering, Kongju National University)
Ro, Soonghwan (School of Information and Communication Engineering, Kongju National University)
Han, Chankyu (School of Information and Communication Engineering, Kongju National University)
Publication Information
Journal of IKEEE / v.16, no.4, 2012 , pp. 395-404 More about this Journal
Abstract
In this paper, the perceived loudness metering algorithm based on ITU-R BS.1387-1 was investigated and implemented, and its performance was evaluated by applying to 23 pure tones and 9 digital audio samples. Error of the tone test results compared with ISO226:2003 was below 5%, and sample test results, in comparison with Moore's algorithm, showed deviation of less than 4.7% and correlation of 0.96. On the other hand, it was investigated how the implemented algorithm's performance was subject to auditory pitch scale. Its result showed that the algorithm with 37 auditory filters, through correcting a bias effect, has a good performance of less than 2% in comparison with the one with 109 auditory filters.
Keywords
perceived loudness metering; ITU-R BS.1387-1; auditory filter band;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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