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Relationship between listening difficulty and acoustical objective measures in reverberant sound fields
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10.1121/1.2885750
/content/asa/journal/jasa/123/4/10.1121/1.2885750
http://aip.metastore.ingenta.com/content/asa/journal/jasa/123/4/10.1121/1.2885750

Figures

Image of FIG. 1.
FIG. 1.

Numbers of real and artificial impulse responses (IR) used in the listening test as a function of STI in steps of 0.05. Open and closed bars respectively represent frequencies of real and artificial impulse responses.

Image of FIG. 2.
FIG. 2.

Relationship between word intelligibility scores and listening difficulty ratings.

Image of FIG. 3.
FIG. 3.

score of listening difficulty rating as a function of each of the objective measures. A solid line and dashed lines in each panel respectively represent a linear regression line and 95% prediction intervals.

Image of FIG. 4.
FIG. 4.

Chart for converting listening difficulty ratings to other measures: intelligibility rating, STI, , , and .

Tables

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TABLE I.

Categories of listening difficulty (see Ref. 1 ).

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TABLE II.

Correlation coefficients between the scores of listening difficulty ratings and each of the objective measures. The objective measures except STI were calculated using the impulse responses passed though octave bandpass filters for each center frequency, a two-octave bandpass filter that covers octave bands of and , and an A-weighted filter. The frequency weighting sum of and that of were obtained using the weighting factors for STI (see Ref. 13 ) and speech intelligibility index (Ref. 14 ). (SII).

Generic image for table
TABLE I.

Linear regression equations and correlation coefficients between scores of listening difficulty ratings and objective measures for octave bands of , , and , and for two-octave bands of and .

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/content/asa/journal/jasa/123/4/10.1121/1.2885750
2008-04-01
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Relationship between listening difficulty and acoustical objective measures in reverberant sound fields
http://aip.metastore.ingenta.com/content/asa/journal/jasa/123/4/10.1121/1.2885750
10.1121/1.2885750
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