Package RightWhaleEdgeDetector

Class RWStandardClassifier

java.lang.Object

RightWhaleEdgeDetector.RWStandardClassifier

public class RWStandardClassifier
extends Object

Standard classifier which does exactly the same as the old edge detector classifier.

decide how much we like this sound and return one of the following: 0 - totally uninteresting short sound

1 - passes basic loose cut - between .5 and 2 s long, Maximum comes later than minimum in time, Minimum frequency between 30 and 200 Hz, total sweep >= 23Hz

2 - passes slightly tighter cuts - as above, but sweep >= 54 Hz, Occupancy > 80% MaxWidth invalid input: '<'= 20 fft bins (156Hz), MinFreq between 50 and 160Hz, MinPos invalid input: '<'= 50% of sound duration, MaxPos >= 70% of sound duration

3-6 passes one of four different cuts on Canonical variable.

Code was written for 2000 Hz data with a 256 pt FFt length If the frequency is not 2000 Hz, the fft length should be scaled accordingly The following code should mitigate against changes though

Author:

Doug Gillespie

Field Summary

Fields

Modifier and Type	Field	Description
static final int	MAXSOUNDTYPE
static final int	MNSCALE

Constructor Summary

Constructors

Constructor	Description
RWStandardClassifier()

Method Summary

Modifier and Type	Method	Description
int	getSoundClass(RWESound aSound)
void	setSoundData(float sampleRate, int fftLength, int fftHop)

Methods inherited from class java.lang.Object

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

Field Details

MNSCALE

public static final int MNSCALE

See Also:

• Constant Field Values

MAXSOUNDTYPE

public static final int MAXSOUNDTYPE

See Also:

• Constant Field Values

Constructor Details

RWStandardClassifier

public RWStandardClassifier()

Method Details

setSoundData

public void setSoundData(float sampleRate,
 int fftLength,
 int fftHop)

getSoundClass

public int getSoundClass(RWESound aSound)