Binaural speech intelligibility in rooms with variations in spatial location of sources and modulation depth of noise interferers
| Autor: | Mathieu Lavandier, Benjamin Collin |
|---|---|
| Přispěvatelé: | Département génie civil et batiment (DGCB), ENTP, centre Lyonnais d'Acoustique (CeLyA), Université de Lyon, Equipe LTDS LGCB, Pascale |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Masking (art)
Male Reverberation business.product_category Sound Spectrography Acoustics and Ultrasonics Computer science Acoustics Intelligibility (communication) Models Psychological 01 natural sciences Vibration Speech Acoustics Amplitude modulation 03 medical and health sciences 0302 clinical medicine Architectural acoustics Arts and Humanities (miscellaneous) 0103 physical sciences Humans Active listening Sound Localization 030223 otorhinolaryngology 010301 acoustics Headphones ComputingMilieux_MISCELLANEOUS [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph] Analysis of Variance [SPI.ACOU] Engineering Sciences [physics]/Acoustics [physics.class-ph] Fourier Analysis Speech Reception Threshold Test Speech Intelligibility Auditory Threshold [PHYS.MECA.ACOU]Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph] Noise Acoustic Stimulation Facility Design and Construction Speech Perception Female business [PHYS.MECA.ACOU] Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph] Binaural recording Perceptual Masking |
| Zdroj: | Journal of the Acoustical Society of America Journal of the Acoustical Society of America, Acoustical Society of America, 2013, 134 (2), pp.1146-1159 |
| ISSN: | 0001-4966 1520-8524 |
| Popis: | Four experiments investigated the effects on speech intelligibility of reverberation, sound source locations, and amplitude modulation of the interferers. Speech reception thresholds (SRTs) were measured using headphones and stimuli that simulated real-room listening, considering one or two interferers which were stationary or speech-modulated noises. In experiment 1, SRTs for modulated noises showed little variation with increasing interferer reverberation. Reverberation might have increased masking by filling in the modulated noise gaps, but simultaneously changed the noise spectra making them less effective maskers. In experiment 2, SRTs were lower when measured using a unique one-voice modulated interferer rather than a different interferer for each target sentence, suggesting that listeners could take advantage of the predictability of the interferer gaps. In experiment 3, increasing speech reverberation did not significantly affect the difference of SRTs measured with stationary and modulated noises, indicating that the ability to exploit noise modulations was still useful for temporally smeared speech. In experiment 4, spatial unmasking remained constant when applying modulations to the interferers, suggesting an independence of the abilities to exploit these modulations and the spatial separation of sources. Finally, a model predicting binaural intelligibility for modulated noises was developed and provided a good fit to the experimental data. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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