A method for degrading sound localization while preserving binaural advantages for speech reception in noise
| Autor: | Patrick M. Zurek, Joshua G. W. Bernstein, Sterling W. Sheffield, Douglas S. Brungart, Griffin D. Romigh |
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| Rok vydání: | 2019 |
| Předmět: |
Masking (art)
Sound localization Adult Male Acoustics and Ultrasonics Computer science Speech recognition Intelligibility (communication) Speech Reception Threshold Test 03 medical and health sciences Young Adult 0302 clinical medicine Arts and Humanities (miscellaneous) Humans Speech reception Sound Localization 030223 otorhinolaryngology Signal processing Auditory Threshold Signal Processing Computer-Assisted Noise Task (computing) 030220 oncology & carcinogenesis Female Binaural recording Algorithms |
| Zdroj: | The Journal of the Acoustical Society of America. 145(2) |
| ISSN: | 1520-8524 |
| Popis: | This study developed and tested a real-time processing algorithm designed to degrade sound localization (LocDeg algorithm) without affecting binaural benefits for speech reception in noise. Input signals were divided into eight frequency channels. The odd-numbered channels were mixed between the ears to confuse the direction of interaural cues while preserving interaural cues in the even-numbered channels. The LocDeg algorithm was evaluated for normal-hearing listeners performing sound localization and speech-reception tasks. Results showed that the LocDeg algorithm successfully degraded sound-localization performance without affecting speech-reception performance or spatial release from masking for speech in noise. The LocDeg algorithm did, however, degrade speech-reception performance in a task involving spatially separated talkers in a multi-talker environment, which is thought to depend on differences in perceived spatial location of concurrent talkers. This LocDeg algorithm could be a valuable tool for isolating the importance of sound-localization ability from other binaural benefits in real-world environments. |
| Databáze: | OpenAIRE |
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