private void updateStrings(final int frequency) {
final int stringFreq = FrequencyDetector.detectStringFreq(frequency);
final Tuple stringName = FrequencyDetector.getStringName(stringFreq);
String tempnote = stringName.get_note_name();
String dashes = "";
if (frequency > 554) {
dashes = "--";
} else {
dashes = "-";
}
if (tempnote == "E") {
E = E + "-" + (stringName.get_fret_number() + "");
A = A + dashes;
D = D + dashes;
G = G + dashes;
B = B + dashes;
e = e + dashes;
} else if (tempnote == "A") {
E = E + dashes;
A = A + "-" + (stringName.get_fret_number() + "");
D = D + dashes;
G = G + dashes;
B = B + dashes;
e = e + dashes;
} else if (tempnote == "D") {
E = E + dashes;
A = A + dashes;
D = D + "-" + (stringName.get_fret_number() + "");
G = G + dashes;
B = B + dashes;
e = e + dashes;
} else if (tempnote == "G") {
E = E + dashes;
A = A + dashes;
D = D + dashes;
G = G + "-" + (stringName.get_fret_number() + "");
B = B + dashes;
e = e + dashes;
} else if (tempnote == "B") {
E = E + dashes;
A = A + dashes;
D = D + dashes;
G = G + dashes;
B = B + "-" + (stringName.get_fret_number() + "");
e = e + dashes;
} else {
E = E + dashes;
A = A + dashes;
D = D + dashes;
G = G + dashes;
B = B + dashes;
e = e + "-" + (stringName.get_fret_number() + "");
}
}
private void processRecordedData() {
mIsProcessing = true;
float[] recordedDataFFT;
recordedDataFFT = FrequencyDetector.convertToFloats(mRecordedData);
fft.realForward(recordedDataFFT);
float[] halfAbsFFT;
halfAbsFFT = FrequencyDetector.absAndHalve(recordedDataFFT);
int[] peaks;
peaks = FrequencyDetector.identifyPeaksAndRemove(halfAbsFFT);
String peakString = "";
for (int e : peaks) peakString += e + " ";
Log.d(TAG, peakString);
int frequency = FrequencyDetector.detectFrequency(peaks);
if (frequency != -1) this.updateStrings(frequency);
mIsProcessing = false;
}
