Effect of listening level and background noise on the subjective decay rate of room impulse responses: Using time-varying loudness to model reverberance

Lee, Doheon; Cabrera, Densil

doi:10.1016/j.apacoust.2010.04.005

Cited by 16 publications

(17 citation statements)

References 11 publications

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“…40 dB to 60 dB for a 1 kHz tone and 60 dB to 80 dB for broadband noises). Lee et al (2010Lee et al ( , 2012 also reported that subsequent sound is more masked when the same sound is listened at higher level in a reverberant condition. Given that reverberance has a strong effect on intelligibility, the inclusion of temporal integration has the potential to be beneficial for predicting the effect of speech level on speech intelligibility in a reverberant condition.…”

Section: Introductionmentioning

confidence: 92%

“…Lee and Cabrera [8] reported that the Time-Varying Loudness Model [10] and the Dynamic Loudness Model [11] perform equally well for T N and EDT N . However, the latter model extended with functions for binaural loudness summation (as per Moore and Glasberg [17]) is chosen for the present study because BRIRs are convolved with anechoic speech for the listening experiment.…”

Section: Computation Of Edt N and T Nmentioning

confidence: 99%

“…The effect of auditory temporal masking may be somewhat analogous to the effect of reverberation in reducing intelligibility (both could be considered to reduce amplitude modulation depth of the transmitted signal due to temporal smearing), and this could be a basis for an interaction effect. Therefore, in this study we consider a model that includes temporal masking (at least, in a simple way): the loudness decay analysis approach proposed by Lee et al [8] [9] for the prediction of the subjective extent of reverberation (hereafter, reverberance). In this approach, computerized loudness models (the Time-varying Loudness Model by Glasberg and Moore [10] or the Dynamic Loudness Model by Chalupper and Fastl [11]) are used to analyze room impulse responses, and parameters are derived from the resulting loudness decay functions.…”

Section: Introductionmentioning

confidence: 99%

“…The loudness-based parameters, named T N and EDT N , are found to outperform the conventional reverberation time (RT) and early decay time (EDT) specified in ISO 3382-1 [1] in predicting reverberance for various types of stimuli. Importantly, the study of Lee and Cabrera [8] found that functions for temporal integration within the loudness models substantially contribute to the performance of T N and EDT N -based reverberance predictions. Furthermore, the amount of temporal integration also varies with the playback level of stimuli.…”

Section: Introductionmentioning

confidence: 99%

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Intelligibility of Reverberant Speech with Amplification: Limitation of Speech Intelligibility Metrics, and a Preliminary Examination of an Alternative Approach

Lee¹,

Gong²,

Cabrera³

et al. 2015

JAMP

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This study examines the effect of speech level on intelligibility in different reverberation conditions, and explores the potential of loudness-based reverberation parameters proposed by Lee et al. [J. Acoust. Soc. Am., 131(2), 1194-1205 (2012)] to explain the effect of speech level on intelligibility in various reverberation conditions. Listening experiments were performed with three speech levels (L Aeq of 55 dB, 65 dB and 75 dB) and three reverberation conditions (T 20 of 1.0 s, 1.9 s and 4.0 s), and subjects listened to speech stimuli through headphones. Collected subjective data were compared with two conventional speech intelligibility parameters (Speech Intelligibility Index and Speech Transmission Index) and two loudness-based reverberation parameters (EDT N and T N ). Results reveal that the effect of speech level on intelligibility changes with a room's reverberation conditions, and that increased level results in reduced intelligibility in highly reverberant conditions. EDT N and T N explain this finding better than do STI and SII, because they consider many psychoacoustic phenomena important for the modeling of the effect of speech level varying with reverberation.

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Section: Introductionmentioning

confidence: 92%

Section: Computation Of Edt N and T Nmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Intelligibility of Reverberant Speech with Amplification: Limitation of Speech Intelligibility Metrics, and a Preliminary Examination of an Alternative Approach

Lee¹,

Gong²,

Cabrera³

et al. 2015

JAMP

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“…The rational for using this method comes from the study by Lee and Cabrera (2010) and Lee et al (2012). In these studies, the outputs of the dynamic loudness model (Chalupper and Fastl, 2002) and the TVL from a RIR provides a better match to the perceived decay of a RIR than the SPL decay of a RIR.…”

mentioning

confidence: 99%

Development of a clarity parameter using a time-varying loudness model

Lee

Schuitman²,

Qiu

et al. 2018

The Journal of the Acoustical Society of America

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The perceived sound clarity is often estimated with the clarity index, which is calculated on the basis of physical acoustic measures that can correlate weakly to the way humans perceive sound for certain test conditions. Therefore, this study proposes a clarity parameter based on a binaural room impulse response processed with a time-varying loudness model. The proposed parameter is validated by calculating the correlation coefficient with subject responses collected from previous listening experiments. Results show that the parameter outperforms the clarity index in most of the tested conditions, but its performance is less robust than parameter for clarity (P).

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