Package com.tagtraum.audiokern.psychoacoustics

Class AuditoryMasking

java.lang.Object

com.tagtraum.audiokern.psychoacoustics.AuditoryMasking

public final class AuditoryMasking
extends Object

Provides methods for simulating auditory masking as it occurs in human perception of sound.

Author:

Hendrik Schreiber

See Also:

Auditory Masking on Wikipedia, Schroeder, Atal & Hall, "Optimizing digital speech coders by exploiting masking properties of the human ear", JASA Vol.66 No6 (1979) p 1647-1652

Field Summary

Fields

Modifier and Type	Field	Description
static MapFunction<float[]>	SCHROEDER_MAGNITUDE_MASK	Applies masking using Schroeder's spread function to magnitude values.
static MapFunction<float[]>	SCHROEDER_POWER_MASK	Applies masking using Schroeder's spread function to power/intensity (as opposed to magnitudes) values.

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SCHROEDER_POWER_MASK

public static MapFunction<float[]> SCHROEDER_POWER_MASK

Applies masking using Schroeder's spread function to power/intensity (as opposed to magnitudes) values.

See Also:

Schroeder, Atal & Hall, "Optimizing digital speech coders by exploiting masking properties of the human ear", JASA Vol.66 No6 (1979) p 1647-1652

SCHROEDER_MAGNITUDE_MASK

public static MapFunction<float[]> SCHROEDER_MAGNITUDE_MASK

Applies masking using Schroeder's spread function to magnitude values. This implies that the given values are first squared, then scaled and then the square root is drawn. The result will have the same sign though as the input value.

See Also:

Schroeder, Atal & Hall, "Optimizing digital speech coders by exploiting masking properties of the human ear", JASA Vol.66 No6 (1979) p 1647-1652