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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drrickorang.loopback;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
/**
* Creates a list of time intervals where glitches occurred.
*/
public class GlitchesStringBuilder {
private static final String TAG = "GlitchesStringBuilder";
public static String getGlitchString(int fftsamplingsize, int FFTOverlapSamples,
int[] glitchesData, int samplingRate,
boolean glitchingIntervalTooLong, int numberOfGlitches) {
int newSamplesPerFFT = fftsamplingsize - FFTOverlapSamples;
// the time span of new samples for a single FFT in ms
double newSamplesInMs = ((double) newSamplesPerFFT / samplingRate) *
Constant.MILLIS_PER_SECOND;
log("newSamplesInMs: " + Double.toString(newSamplesInMs));
// the time span of all samples for a single FFT in ms
double allSamplesInMs = ((double) fftsamplingsize / samplingRate) *
Constant.MILLIS_PER_SECOND;
log("allSamplesInMs: " + Double.toString(allSamplesInMs));
StringBuilder listOfGlitches = new StringBuilder();
listOfGlitches.append("Total Glitching Interval too long: " +
glitchingIntervalTooLong + "\n");
listOfGlitches.append("Estimated number of glitches: " + numberOfGlitches + "\n");
listOfGlitches.append("List of glitching intervals: \n");
for (int i = 0; i < glitchesData.length; i++) {
int timeInMs; // starting time of glitches
//append the time of glitches to "listOfGlitches"
timeInMs = (int) (glitchesData[i] * newSamplesInMs); // round down
listOfGlitches.append(timeInMs + "~" + (timeInMs + (int) allSamplesInMs) + "ms\n");
}
return listOfGlitches.toString();
}
/** Generate String of Glitch Times in ms return separated. */
public static String getGlitchStringForFile(int fftSamplingSize, int FFTOverlapSamples,
int[] glitchesData, int samplingRate) {
int newSamplesPerFFT = fftSamplingSize - FFTOverlapSamples;
// the time span of new samples for a single FFT in ms
double newSamplesInMs = ((double) newSamplesPerFFT / samplingRate) *
Constant.MILLIS_PER_SECOND;
StringBuilder listOfGlitches = new StringBuilder();
for (int i = 0; i < glitchesData.length; i++) {
int timeInMs; // starting time of glitches
//append the time of glitches to "listOfGlitches"
timeInMs = (int) (glitchesData[i] * newSamplesInMs); // round down
listOfGlitches.append(timeInMs + "\n");
}
return listOfGlitches.toString();
}
/** Generate array of Glitch Times in ms */
public static int[] getGlitchMilliseconds(int fftSamplingSize, int FFTOverlapSamples,
int[] glitchesData, int samplingRate) {
int[] glitchMilliseconds = new int[glitchesData.length];
int newSamplesPerFFT = fftSamplingSize - FFTOverlapSamples;
// the time span of new samples for a single FFT in ms
double newSamplesInMs = ((double) newSamplesPerFFT / samplingRate) *
Constant.MILLIS_PER_SECOND;
for (int i = 0; i < glitchesData.length; i++) {
glitchMilliseconds[i] = (int) (glitchesData[i] * newSamplesInMs); // round down
}
return glitchMilliseconds;
}
private static void log(String msg) {
Log.v(TAG, msg);
}
}
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