scholarly journals Spatial release from masking with noise-vocoded speech

2008 ◽  
Vol 124 (3) ◽  
pp. 1627-1637 ◽  
Author(s):  
Richard L. Freyman ◽  
Uma Balakrishnan ◽  
Karen S. Helfer
Keyword(s):  
Spatial Release ◽  
Release From Masking ◽  
Vocoded Speech

Spatial release from masking for noise-vocoded speech

2013 ◽  
Vol 133 (5) ◽  
pp. 3380-3380
Author(s):  
Jayaganesh Swaminathan ◽  
Christine R. Mason ◽  
Timothy M. Streeter ◽  
Virginia Best ◽  
Gerald Kidd, Jr
Keyword(s):  
Spatial Release ◽  
Release From Masking ◽  
Vocoded Speech

scholarly journals Role of binaural hearing in speech intelligibility and spatial release from masking using vocoded speech

2009 ◽  
Vol 126 (5) ◽  
pp. 2522-2535 ◽  
Author(s):  
Soha N. Garadat ◽  
Ruth Y. Litovsky ◽  
Gongqiang Yu ◽  
Fan-Gang Zeng
Keyword(s):  
Speech Intelligibility ◽  
Binaural Hearing ◽  
Spatial Release ◽  
Release From Masking ◽  
Vocoded Speech

scholarly journals Listeners Experience Linguistic Masking Release in Noise-Vocoded Speech-in-Speech Recognition

2018 ◽  
Vol 61 (2) ◽  
pp. 428-435 ◽  
Author(s):  
Navin Viswanathan ◽  
Kostas Kokkinakis ◽  
Brittany T. Williams
Keyword(s):  
Speech Recognition ◽  
Spectral Resolution ◽  
Signal To Noise Ratio ◽  
Spatial Separation ◽  
Channel Noise ◽  
Signal To Noise ◽  
Spatial Release ◽  
Mixed Factorial Design ◽  
Release From Masking ◽  
Vocoded Speech

Purpose The purpose of this study was to evaluate whether listeners with normal hearing perceiving noise-vocoded speech-in-speech demonstrate better intelligibility of target speech when the background speech was mismatched in language (linguistic release from masking [LRM]) and/or location (spatial release from masking [SRM]) relative to the target. We also assessed whether the spectral resolution of the noise-vocoded stimuli affected the presence of LRM and SRM under these conditions. Method In Experiment 1, a mixed factorial design was used to simultaneously manipulate the masker language (within-subject, English vs. Dutch), the simulated masker location (within-subject, right, center, left), and the spectral resolution (between-subjects, 6 vs. 12 channels) of noise-vocoded target–masker combinations presented at +25 dB signal-to-noise ratio (SNR). In Experiment 2, the study was repeated using a spectral resolution of 12 channels at +15 dB SNR. Results In both experiments, listeners' intelligibility of noise-vocoded targets was better when the background masker was Dutch, demonstrating reliable LRM in all conditions. The pattern of results in Experiment 1 was not reliably different across the 6- and 12-channel noise-vocoded speech. Finally, a reliable spatial benefit (SRM) was detected only in the more challenging SNR condition (Experiment 2). Conclusion The current study is the first to report a clear LRM benefit in noise-vocoded speech-in-speech recognition. Our results indicate that this benefit is available even under spectrally degraded conditions and that it may augment the benefit due to spatial separation of target speech and competing backgrounds.

scholarly journals Spatial release from masking for noise-vocoded speech

2013 ◽  
Author(s):  
Jayaganesh Swaminathan ◽  
Christine R. Mason ◽  
Timothy M. Streeter ◽  
Virginia Best ◽  
Gerald Kidd Jr
Keyword(s):  
Spatial Release ◽  
Release From Masking ◽  
Vocoded Speech

scholarly journals Spatial Release From Masking in 2-Year-Olds With Normal Hearing and With Bilateral Cochlear Implants

2018 ◽  
Vol 22 ◽  
pp. 233121651877556 ◽  
Author(s):  
Christi L. Hess ◽  
Sara M. Misurelli ◽  
Ruth Y. Litovsky
Keyword(s):  
Cochlear Implants ◽  
Normal Hearing ◽  
Bilateral Cochlear Implants ◽  
Spatial Release ◽  
Release From Masking

scholarly journals Verification of an automated headphone-based test of spatial release from masking

2016 ◽  
Author(s):  
Frederick J. Gallun ◽  
Garnett P. McMillan ◽  
Sean D. Kampel ◽  
Kasey M. Jakien ◽  
Nirmal K. Srinivasan ◽  
...  
Keyword(s):  
Spatial Release ◽  
Release From Masking

scholarly journals FreeHear: A New Sound-Field Speech-in-Babble Hearing Assessment Tool

2019 ◽  
Vol 23 ◽  
pp. 233121651987237 ◽  
Author(s):  
David R. Moore ◽  
Helen Whiston ◽  
Melanie Lough ◽  
Antonia Marsden ◽  
Harvey Dillon ◽  
...  
Keyword(s):  
Assessment Tool ◽  
Sound Field ◽  
Standard Test ◽  
Initial Assessment ◽  
Clinical Test ◽  
Older Children ◽  
Spatial Release ◽  
Hearing Devices ◽  
Release From Masking ◽  
Test Retest Reliability

Pure-tone threshold audiometry is currently the standard test of hearing. However, in everyday life, we are more concerned with listening to speech of moderate loudness and, specifically, listening to a particular talker against a background of other talkers. FreeHear delivers strings of three spoken digits (0–9, not 7) against a background babble via three loudspeakers placed in front and to either side of a listener. FreeHear is designed as a rapid, quantitative initial assessment of hearing using an adaptive algorithm. It is designed especially for children and for testing listeners who are using hearing devices. In this first report on FreeHear, we present developmental considerations and protocols and results of testing 100 children (4–13 years old) and 23 adults (18–30 years old). Two of the six 4 year olds and 91% of all older children completed full testing. Speech reception threshold (SRT) for digits and noise colocated at 0° or separated by 90° both improved linearly across 4 to 12 years old by 6 to 7 dB, with a further 2 dB improvement for the adults. These data suggested full maturation at approximately 15 years old SRTs at 90° digits/noise separation were better by approximately 6 dB than SRTs colocated at 0°. This spatial release from masking did not change significantly across age. Test–retest reliability was similar for children and adults (standard deviation of 2.05–2.91 dB SRT), with a mean practice improvement of 0.04–0.98 dB. FreeHear shows promise as a clinical test for both children and adults. Further trials in people with hearing impairment are ongoing.

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