Level-Invariant and Distance-Invariant Detection Models

These flashcards cover key concepts related to auditory detection models, including profile analysis, comodulation masking release, and properties of auditory processing.

Profile Analysis

A spectral shape analysis strategy that compares the shape of the spectrum across a set of filters.

Comodulation Masking Release (CMR)

A phenomenon where thresholds for detecting a tone in noise decrease when the noise is comodulated with the signal.

Level-Invariance

The property that allows signal detection to be unaffected by overall sound intensity changes.

Distance-Invariance

The property that allows signal detection to remain consistent regardless of the distance of the sound source.

Auditory Filters

Frequency-selective channels through which sounds are processed in the auditory system.

Signal Detection Theory

A framework used to quantify the ability to discern between signal and noise.

Decision Variable (DV)

A calculated value used to determine the presence of a signal based on different frequency channel inputs.

Sine Wave

A continuous wave that describes a smooth periodic oscillation, often used in sound wave modeling.

Mistuned Harmonic

A tone that does not belong to the harmonic series, making it easily detectable as a separate auditory object.

Stream Segregation

The process by which the auditory system separates combined sound waveforms into distinct auditory objects.

Critical Band Theory

A theory that describes how sound is processed in auditory filters, often assumed to involve a single filter.