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Effects of periodic masker interruption on the intelligibility of interrupted speech.
J Acoust Soc Am. 2007 Sep; 122(3):1693.JA

Abstract

When listeners hear a target signal in the presence of competing sounds, they are quite good at extracting information at instances when the local signal-to-noise ratio of the target is most favorable. Previous research suggests that listeners can easily understand a periodically interrupted target when it is interleaved with noise. It is not clear if this ability extends to the case where an interrupted target is alternated with a speech masker rather than noise. This study examined speech intelligibility in the presence of noise or speech maskers, which were either continuous or interrupted at one of six rates between 4 and 128 Hz. Results indicated that with noise maskers, listeners performed significantly better with interrupted, rather than continuous maskers. With speech maskers, however, performance was better in continuous, rather than interrupted masker conditions. Presumably the listeners used continuity as a cue to distinguish the continuous masker from the interrupted target. Intelligibility in the interrupted masker condition was improved by introducing a pitch difference between the target and speech masker. These results highlight the role that target-masker differences in continuity and pitch play in the segregation of competing speech signals.

Authors+Show Affiliations

Air Force Research Laboratory, Wright-Patterson AFB, Ohio, USA. iyer@wpafb.af.milNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

17927429

Citation

Iyer, Nandini, et al. "Effects of Periodic Masker Interruption On the Intelligibility of Interrupted Speech." The Journal of the Acoustical Society of America, vol. 122, no. 3, 2007, p. 1693.
Iyer N, Brungart DS, Simpson BD. Effects of periodic masker interruption on the intelligibility of interrupted speech. J Acoust Soc Am. 2007;122(3):1693.
Iyer, N., Brungart, D. S., & Simpson, B. D. (2007). Effects of periodic masker interruption on the intelligibility of interrupted speech. The Journal of the Acoustical Society of America, 122(3), 1693.
Iyer N, Brungart DS, Simpson BD. Effects of Periodic Masker Interruption On the Intelligibility of Interrupted Speech. J Acoust Soc Am. 2007;122(3):1693. PubMed PMID: 17927429.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of periodic masker interruption on the intelligibility of interrupted speech. AU - Iyer,Nandini, AU - Brungart,Douglas S, AU - Simpson,Brian D, PY - 2007/10/12/pubmed PY - 2008/3/8/medline PY - 2007/10/12/entrez SP - 1693 EP - 1693 JF - The Journal of the Acoustical Society of America JO - J Acoust Soc Am VL - 122 IS - 3 N2 - When listeners hear a target signal in the presence of competing sounds, they are quite good at extracting information at instances when the local signal-to-noise ratio of the target is most favorable. Previous research suggests that listeners can easily understand a periodically interrupted target when it is interleaved with noise. It is not clear if this ability extends to the case where an interrupted target is alternated with a speech masker rather than noise. This study examined speech intelligibility in the presence of noise or speech maskers, which were either continuous or interrupted at one of six rates between 4 and 128 Hz. Results indicated that with noise maskers, listeners performed significantly better with interrupted, rather than continuous maskers. With speech maskers, however, performance was better in continuous, rather than interrupted masker conditions. Presumably the listeners used continuity as a cue to distinguish the continuous masker from the interrupted target. Intelligibility in the interrupted masker condition was improved by introducing a pitch difference between the target and speech masker. These results highlight the role that target-masker differences in continuity and pitch play in the segregation of competing speech signals. SN - 1520-8524 UR - https://www.unboundmedicine.com/medline/citation/17927429/Effects_of_periodic_masker_interruption_on_the_intelligibility_of_interrupted_speech_ L2 - https://doi.org/10.1121/1.2756177 DB - PRIME DP - Unbound Medicine ER -