projectpossibility
Class AAnalyzer

java.lang.Object
  projectpossibility.AAnalyzer

public class AAnalyzer
extends java.lang.Object

Amplitude Analyzer - performs calculations related to amplitude of the audio data\n (finding max amplitude, finding number of samples above threshold,finding average amplitude)

Constructor Summary

AAnalyzer()

Method Summary

static double	getAvgAmplitude(byte[] stream) find average amplitude of audio stream
static double	getMaxAmplitude(byte[] stream) find maximum amplitude of the audio stream
static double	samplesAboveThreshold(byte[] stream, double thres) find number of samples with level above the supplied threshold value

Methods inherited from class java.lang.Object

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

Constructor Detail

AAnalyzer

public AAnalyzer()

Method Detail

getMaxAmplitude

public static double getMaxAmplitude(byte[] stream)

find maximum amplitude of the audio stream

Parameters:

stream - captured audio data

Returns:

maximum amplitude at any point in the sample

samplesAboveThreshold

public static double samplesAboveThreshold(byte[] stream,
                                           double thres)

find number of samples with level above the supplied threshold value

Parameters:

stream - captured audio data

thres - threshold value

Returns:

number of samples

getAvgAmplitude

public static double getAvgAmplitude(byte[] stream)

find average amplitude of audio stream

Parameters:

stream - captured audio data

Returns:

average amplitude of entire sample