Related Experiment Video
Updated: Jul 24, 2026
09:23
A Low Cost Setup for Behavioral Audiometry in Rodents
Published on: October 16, 2012
Monaural masking release in random-phase and low-noise noise
1Department of Communicative Disorders & Sciences, State University of New York at Buffalo, 14214, USA. deddins@buffalo.edu
The Journal of the Acoustical Society of America
|April 28, 2001
Summary
This study explored similarities between comodulation masking release (CMR) and profile analysis by manipulating masker envelope fluctuations. Results suggest these auditory masking release paradigms may share underlying perceptual processes and stimulus cues.
Area of Science:
- Auditory perception
- Psychoacoustics
- Signal detection theory
Background:
- Comodulation masking release (CMR) and profile analysis are auditory masking paradigms.
- Both are hypothesized to involve across-channel processing in auditory perception.
Purpose of the Study:
- To investigate the similarities between CMR and profile analysis.
- To compare signal detection in maskers with varying envelope fluctuation degrees.
Main Methods:
- Used narrow-band noise maskers (10 Hz wide) with envelope fluctuations manipulated via the low-noise noise (LNN) algorithm.
- Employed classic CMR conditions (on-frequency, multiple incoherent, multiple coherent bands).
- Compared detection using random-phase noise (RPN) and LNN maskers, including intensity discrimination tasks.
Main Results:
- RPN maskers with tonal signals mimicked CMR conditions.
- LNN maskers with noise signals resembled profile analysis conditions.
- Hybrid conditions offered diverse within- and across-channel detection cues.
Conclusions:
- CMR and profile analysis may rely on a common set of stimulus cues.
- These masking release paradigms might be underpinned by similar perceptual processes.
Related Concept Videos
00:53Sound Waves: Interference
Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
01:19Masking and Demasking Agents
EDTA titrations may necessitate masking and demasking agents to temporarily protect a particular metal ion in a mixture from the EDTA reaction. These agents facilitate the sequential analysis of the metal ions by forming stable complexes with some—but not all—metal ions during certain steps.
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on the metal...
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on the metal...
01:23Parallel Resonance
The parallel RLC circuit is an arrangement where the resistor (R), inductor (L), and capacitor (C) are all connected to the same nodes and, as a result, share the same voltage across them. The parallel RLC circuit is analyzed in terms of admittance (Y), which reflects the ease with which current can flow. The admittance is given by: