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This commit is contained in:
Chris Cannam
2024-08-02 16:20:21 +01:00
parent a0099e63bf
commit 14344944b7
1 changed files with 33 additions and 29 deletions
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62
src/test/TestLiveShifter.cpp
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@@ -211,36 +211,40 @@ static void check_sinusoid_shifted(int n, int rate, float freq, float shift,
}
int reportedDelay = shifter.getStartDelay();
int slackpart = 2048;
double lastCrossing = -1;
int nCrossings = 0;
double accWavelength = 0;
double minWavelength = 0;
double maxWavelength = 0;
sumSquares = 0;
double peakOut = 0;
for (int i = reportedDelay; i < endpoint; ++i) {
sumSquares += out[i] * out[i];
if (fabs(out[i]) > peakOut) peakOut = fabs(out[i]);
if (out[i-1] < 0.f && out[i] >= 0.f) {
double crossing = (i-1) + (out[i-1] / (out[i-1] - out[i]));
if (lastCrossing >= 0) {
double wavelength = crossing - lastCrossing;
accWavelength += wavelength;
if (minWavelength == 0 || wavelength < minWavelength) {
minWavelength = wavelength;
}
if (maxWavelength == 0 || wavelength > maxWavelength) {
maxWavelength = wavelength;
}
cerr << "wavelength = " << wavelength << " (freq " << rate / wavelength << ")" << endl;
nCrossings ++;
}
lastCrossing = crossing;
for (int section = 0; section < 2; ++section) {
double lastCrossing = -1;
double freqeps = (section == 1 ? 0.15 : 5.0) * fabs(shift);
sumSquares = 0;
int i0 = reportedDelay;
int i1 = reportedDelay + slackpart;
if (section == 1) {
i0 = i1;
i1 = endpoint;
}
}
cerr << endl;
for (int i = i0; i < i1; ++i) {
sumSquares += out[i] * out[i];
if (out[i-1] < 0.f && out[i] >= 0.f) {
double crossing = (i-1) + (out[i-1] / (out[i-1] - out[i]));
if (lastCrossing >= 0) {
double f = rate / (crossing - lastCrossing);
double diff = freq * shift - f;
if (fabs(diff) > freqeps) {
cerr << "i = " << i << " (from " << i0 << " to " << i1 << "), f = " << f << ", freq = " << freq * shift << ", diff = " << diff << ", freqeps = " << freqeps << ", shift = " << shift << ", factor = " << fabs(diff)/freqeps << endl;
}
}
lastCrossing = crossing;
}
}
// check rms
}
/*
double avgWavelength = 1;
if (nCrossings > 0) {
avgWavelength = accWavelength / nCrossings;
@@ -287,10 +291,10 @@ static void check_sinusoid_shifted(int n, int rate, float freq, float shift,
break;
}
}
*/
if (printDebug) {
RubberBandLiveShifter::setDefaultDebugLevel(0);
dump(debugPrefix, in, out, expected, delay);
dump(debugPrefix, in, out, expected, reportedDelay);
}
}