| Simultaneous masking and unmasking with bandlimited noise. | |
| | |
MedLine Citation:
|
PMID: 6841816 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
This study examines how simultaneous masking of a tone by bandlimited noise may be affected by nonlinear interactions among spectral components of the noise. Simultaneous masking patterns (signal threshold versus signal frequency) were obtained with three types of maskers: (A) a narrow-band noise, 50 Hz wide with variable center frequency fv, (B) pairs of narrow-band noises, each band 50 Hz wide with center frequencies fl and fu, and (C) wide-band noise formed by filling the spectral gap between the two bands of (B). The variable frequency fv was set to 1.0, 1.1, 1.2, and 1.3 kHz: fl was fixed at 1.0 kHz, and fu had values of 1.1, 1.2, and 1.3 kHz. In most conditions, the two-band maskers and the wideband maskers produced more masking than would be predicted from the masking produced by the single narrow-band maskers. For certain signal frequencies below the maskers, adding noise to fill the spectral gap of the two-band masker actually resulted in a 3- to 15-dB release from masking. These results reveal factors that may operate to confound modern measures of frequency selectivity. |
| | |
Authors:
|
R A Lutfi |
Related Documents
:
|
21096316 - Spectral analysis of single-channel airflow and oxygen saturation recordings in obstruc... 11784746 - Background noise improves gap detection in tonically inhibited inferior colliculus neur... 11165766 - The visual resolution of landolt-c optotypes in human subjects depends on their orienta... 7961176 - Periodicity of long-term context can influence gap detection. 18244186 - Practical spread spectrum pulse compression for ultrasonic tissue imaging. 6295796 - Impulse coding of ramp currents intracellularly injected into pyramidal tract neurones. |
Publication Detail:
|
Type: Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
|
Title: The Journal of the Acoustical Society of America Volume: 73 ISSN: 0001-4966 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 1983 Mar |
Date Detail:
|
Created Date: 1983-06-10 Completed Date: 1983-06-10 Revised Date: 2006-12-27 |
Medline Journal Info:
|
Nlm Unique ID: 7503051 Medline TA: J Acoust Soc Am Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 899-905 Citation Subset: IM |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Acoustic Stimulation Auditory Threshold Humans Loudness Perception Perceptual Masking* Pitch Discrimination* Psychoacoustics |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Monaural and binaural auditory frequency resolution measured using bandlimited noise and notched-noi...
Next Document: Temporary threshold shifts produced by exposure to low-frequency noises.