Spectrum, Waterfall processor prep

This commit is contained in:
Charles J. Cliffe 2015-07-31 21:47:21 -04:00
parent e616ae1ebb
commit 77f172027e
4 changed files with 355 additions and 377 deletions

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@ -1 +1,80 @@
#include "SpectrumVisualProcessor.h"
void SpectrumVisualProcessor::process() {
/*
std::vector<liquid_float_complex> *data = &input->data;
if (data && data->size()) {
if (fft_size != data->size()) {
setup(data->size());
}
if (spectrum_points.size() < fft_size * 2) {
if (spectrum_points.capacity() < fft_size * 2) {
spectrum_points.reserve(fft_size * 2);
}
spectrum_points.resize(fft_size * 2);
}
for (int i = 0; i < fft_size; i++) {
in[i][0] = (*data)[i].real;
in[i][1] = (*data)[i].imag;
}
fftwf_execute(plan);
float fft_ceil = 0, fft_floor = 1;
if (fft_result.size() != fft_size) {
if (fft_result.capacity() < fft_size) {
fft_result.reserve(fft_size);
fft_result_ma.reserve(fft_size);
fft_result_maa.reserve(fft_size);
}
fft_result.resize(fft_size);
fft_result_ma.resize(fft_size);
fft_result_maa.resize(fft_size);
}
int n;
for (int i = 0, iMax = fft_size / 2; i < iMax; i++) {
float a = out[i][0];
float b = out[i][1];
float c = sqrt(a * a + b * b);
float x = out[fft_size / 2 + i][0];
float y = out[fft_size / 2 + i][1];
float z = sqrt(x * x + y * y);
fft_result[i] = (z);
fft_result[fft_size / 2 + i] = (c);
}
for (int i = 0, iMax = fft_size; i < iMax; i++) {
fft_result_maa[i] += (fft_result_ma[i] - fft_result_maa[i]) * 0.65;
fft_result_ma[i] += (fft_result[i] - fft_result_ma[i]) * 0.65;
if (fft_result_maa[i] > fft_ceil) {
fft_ceil = fft_result_maa[i];
}
if (fft_result_maa[i] < fft_floor) {
fft_floor = fft_result_maa[i];
}
}
fft_ceil += 1;
fft_floor -= 1;
fft_ceil_ma = fft_ceil_ma + (fft_ceil - fft_ceil_ma) * 0.01;
fft_ceil_maa = fft_ceil_maa + (fft_ceil_ma - fft_ceil_maa) * 0.01;
fft_floor_ma = fft_floor_ma + (fft_floor - fft_floor_ma) * 0.01;
fft_floor_maa = fft_floor_maa + (fft_floor_ma - fft_floor_maa) * 0.01;
for (int i = 0, iMax = fft_size; i < iMax; i++) {
float v = (log10(fft_result_maa[i] - fft_floor_maa) / log10(fft_ceil_maa - fft_floor_maa));
spectrum_points[i * 2] = ((float) i / (float) iMax);
spectrum_points[i * 2 + 1] = v;
}
}
*/
}

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#pragma once
#include "VisualProcessor.h"
#include "SpectrumCanvas.h"
class SpectrumVisualData : public ReferenceCounter {
};
class SpectrumVisualProcessor : public VisualProcessor<DemodulatorThreadIQData, SpectrumVisualData> {
protected:
virtual void process() {
/*
std::vector<liquid_float_complex> *data = &input->data;
if (data && data->size()) {
if (fft_size != data->size()) {
setup(data->size());
}
if (spectrum_points.size() < fft_size * 2) {
if (spectrum_points.capacity() < fft_size * 2) {
spectrum_points.reserve(fft_size * 2);
}
spectrum_points.resize(fft_size * 2);
}
for (int i = 0; i < fft_size; i++) {
in[i][0] = (*data)[i].real;
in[i][1] = (*data)[i].imag;
}
fftwf_execute(plan);
float fft_ceil = 0, fft_floor = 1;
if (fft_result.size() != fft_size) {
if (fft_result.capacity() < fft_size) {
fft_result.reserve(fft_size);
fft_result_ma.reserve(fft_size);
fft_result_maa.reserve(fft_size);
}
fft_result.resize(fft_size);
fft_result_ma.resize(fft_size);
fft_result_maa.resize(fft_size);
}
int n;
for (int i = 0, iMax = fft_size / 2; i < iMax; i++) {
float a = out[i][0];
float b = out[i][1];
float c = sqrt(a * a + b * b);
float x = out[fft_size / 2 + i][0];
float y = out[fft_size / 2 + i][1];
float z = sqrt(x * x + y * y);
fft_result[i] = (z);
fft_result[fft_size / 2 + i] = (c);
}
for (int i = 0, iMax = fft_size; i < iMax; i++) {
fft_result_maa[i] += (fft_result_ma[i] - fft_result_maa[i]) * 0.65;
fft_result_ma[i] += (fft_result[i] - fft_result_ma[i]) * 0.65;
if (fft_result_maa[i] > fft_ceil) {
fft_ceil = fft_result_maa[i];
}
if (fft_result_maa[i] < fft_floor) {
fft_floor = fft_result_maa[i];
}
}
fft_ceil += 1;
fft_floor -= 1;
fft_ceil_ma = fft_ceil_ma + (fft_ceil - fft_ceil_ma) * 0.01;
fft_ceil_maa = fft_ceil_maa + (fft_ceil_ma - fft_ceil_maa) * 0.01;
fft_floor_ma = fft_floor_ma + (fft_floor - fft_floor_ma) * 0.01;
fft_floor_maa = fft_floor_maa + (fft_floor_ma - fft_floor_maa) * 0.01;
for (int i = 0, iMax = fft_size; i < iMax; i++) {
float v = (log10(fft_result_maa[i] - fft_floor_maa) / log10(fft_ceil_maa - fft_floor_maa));
spectrum_points[i * 2] = ((float) i / (float) iMax);
spectrum_points[i * 2 + 1] = v;
}
}
*/
}
};

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@ -1 +1,275 @@
#include "WaterfallVisualProcessor.h"
void WaterfallVisualProcessor::process() {
/*
long double currentZoom = zoom;
if (mouseZoom != 1) {
currentZoom = mouseZoom;
mouseZoom = mouseZoom + (1.0 - mouseZoom) * 0.2;
if (fabs(mouseZoom-1.0)<0.01) {
mouseZoom = 1;
}
}
long long bw;
if (currentZoom != 1) {
long long freq = wxGetApp().getFrequency();
if (currentZoom < 1) {
centerFreq = getCenterFrequency();
bw = getBandwidth();
bw = (long long) ceil((long double) bw * currentZoom);
if (bw < 100000) {
bw = 100000;
}
if (mouseTracker.mouseInView()) {
long long mfreqA = getFrequencyAt(mouseTracker.getMouseX());
setBandwidth(bw);
long long mfreqB = getFrequencyAt(mouseTracker.getMouseX());
centerFreq += mfreqA - mfreqB;
}
setView(centerFreq, bw);
if (spectrumCanvas) {
spectrumCanvas->setView(centerFreq, bw);
}
} else {
if (isView) {
bw = getBandwidth();
bw = (long long) ceil((long double) bw * currentZoom);
if (bw >= wxGetApp().getSampleRate()) {
disableView();
if (spectrumCanvas) {
spectrumCanvas->disableView();
}
} else {
if (mouseTracker.mouseInView()) {
long long mfreqA = getFrequencyAt(mouseTracker.getMouseX());
setBandwidth(bw);
long long mfreqB = getFrequencyAt(mouseTracker.getMouseX());
centerFreq += mfreqA - mfreqB;
}
setView(getCenterFrequency(), bw);
if (spectrumCanvas) {
spectrumCanvas->setView(centerFreq, bw);
}
}
}
}
if (centerFreq < freq && (centerFreq - bandwidth / 2) < (freq - wxGetApp().getSampleRate() / 2)) {
centerFreq = (freq - wxGetApp().getSampleRate() / 2) + bandwidth / 2;
}
if (centerFreq > freq && (centerFreq + bandwidth / 2) > (freq + wxGetApp().getSampleRate() / 2)) {
centerFreq = (freq + wxGetApp().getSampleRate() / 2) - bandwidth / 2;
}
}
std::vector<liquid_float_complex> *data = &input->data;
if (data && data->size()) {
// if (fft_size != data->size() && !isView) {
// Setup(data->size(), waterfall_lines);
// }
// if (last_bandwidth != bandwidth && !isView) {
// Setup(bandwidth, waterfall_lines);
// }
if (spectrum_points.size() < fft_size * 2) {
spectrum_points.resize(fft_size * 2);
}
unsigned int num_written;
if (isView) {
if (!input->frequency || !input->sampleRate) {
return;
}
resamplerRatio = (double) (bandwidth) / (double) input->sampleRate;
int desired_input_size = fft_size / resamplerRatio;
if (input->data.size() < desired_input_size) {
// std::cout << "fft underflow, desired: " << desired_input_size << " actual:" << input->data.size() << std::endl;
desired_input_size = input->data.size();
}
if (centerFreq != input->frequency) {
if ((centerFreq - input->frequency) != shiftFrequency || lastInputBandwidth != input->sampleRate) {
if (abs(input->frequency - centerFreq) < (wxGetApp().getSampleRate() / 2)) {
shiftFrequency = centerFreq - input->frequency;
nco_crcf_reset(freqShifter);
nco_crcf_set_frequency(freqShifter, (2.0 * M_PI) * (((double) abs(shiftFrequency)) / ((double) input->sampleRate)));
}
}
if (shiftBuffer.size() != desired_input_size) {
if (shiftBuffer.capacity() < desired_input_size) {
shiftBuffer.reserve(desired_input_size);
}
shiftBuffer.resize(desired_input_size);
}
if (shiftFrequency < 0) {
nco_crcf_mix_block_up(freqShifter, &input->data[0], &shiftBuffer[0], desired_input_size);
} else {
nco_crcf_mix_block_down(freqShifter, &input->data[0], &shiftBuffer[0], desired_input_size);
}
} else {
shiftBuffer.assign(input->data.begin(), input->data.end());
}
if (!resampler || bandwidth != lastBandwidth || lastInputBandwidth != input->sampleRate) {
float As = 60.0f;
if (resampler) {
msresamp_crcf_destroy(resampler);
}
resampler = msresamp_crcf_create(resamplerRatio, As);
lastBandwidth = bandwidth;
lastInputBandwidth = input->sampleRate;
}
int out_size = ceil((double) (desired_input_size) * resamplerRatio) + 512;
if (resampleBuffer.size() != out_size) {
if (resampleBuffer.capacity() < out_size) {
resampleBuffer.reserve(out_size);
}
resampleBuffer.resize(out_size);
}
msresamp_crcf_execute(resampler, &shiftBuffer[0], desired_input_size, &resampleBuffer[0], &num_written);
resampleBuffer.resize(fft_size);
if (num_written < fft_size) {
for (int i = 0; i < num_written; i++) {
fft_in_data[i][0] = resampleBuffer[i].real;
fft_in_data[i][1] = resampleBuffer[i].imag;
}
for (int i = num_written; i < fft_size; i++) {
fft_in_data[i][0] = 0;
fft_in_data[i][1] = 0;
}
} else {
for (int i = 0; i < fft_size; i++) {
fft_in_data[i][0] = resampleBuffer[i].real;
fft_in_data[i][1] = resampleBuffer[i].imag;
}
}
} else {
num_written = data->size();
if (data->size() < fft_size) {
for (int i = 0, iMax = data->size(); i < iMax; i++) {
fft_in_data[i][0] = (*data)[i].real;
fft_in_data[i][1] = (*data)[i].imag;
}
for (int i = data->size(); i < fft_size; i++) {
fft_in_data[i][0] = 0;
fft_in_data[i][1] = 0;
}
} else {
for (int i = 0; i < fft_size; i++) {
fft_in_data[i][0] = (*data)[i].real;
fft_in_data[i][1] = (*data)[i].imag;
}
}
}
bool execute = false;
if (num_written >= fft_size) {
execute = true;
memcpy(in, fft_in_data, fft_size * sizeof(fftwf_complex));
memcpy(fft_last_data, in, fft_size * sizeof(fftwf_complex));
} else {
if (last_data_size + num_written < fft_size) { // priming
unsigned int num_copy = fft_size - last_data_size;
if (num_written > num_copy) {
num_copy = num_written;
}
memcpy(fft_last_data, fft_in_data, num_copy * sizeof(fftwf_complex));
last_data_size += num_copy;
} else {
unsigned int num_last = (fft_size - num_written);
memcpy(in, fft_last_data + (last_data_size - num_last), num_last * sizeof(fftwf_complex));
memcpy(in + num_last, fft_in_data, num_written * sizeof(fftwf_complex));
memcpy(fft_last_data, in, fft_size * sizeof(fftwf_complex));
execute = true;
}
}
if (execute) {
fftwf_execute(plan);
float fft_ceil = 0, fft_floor = 1;
if (fft_result.size() < fft_size) {
fft_result.resize(fft_size);
fft_result_ma.resize(fft_size);
fft_result_maa.resize(fft_size);
}
int n;
for (int i = 0, iMax = fft_size / 2; i < iMax; i++) {
float a = out[i][0];
float b = out[i][1];
float c = sqrt(a * a + b * b);
float x = out[fft_size / 2 + i][0];
float y = out[fft_size / 2 + i][1];
float z = sqrt(x * x + y * y);
fft_result[i] = (z);
fft_result[fft_size / 2 + i] = (c);
}
for (int i = 0, iMax = fft_size; i < iMax; i++) {
if (isView) {
fft_result_maa[i] += (fft_result_ma[i] - fft_result_maa[i]) * 0.65;
fft_result_ma[i] += (fft_result[i] - fft_result_ma[i]) * 0.65;
} else {
fft_result_maa[i] += (fft_result_ma[i] - fft_result_maa[i]) * 0.65;
fft_result_ma[i] += (fft_result[i] - fft_result_ma[i]) * 0.65;
}
if (fft_result_maa[i] > fft_ceil) {
fft_ceil = fft_result_maa[i];
}
if (fft_result_maa[i] < fft_floor) {
fft_floor = fft_result_maa[i];
}
}
fft_ceil += 0.25;
fft_floor -= 1;
fft_ceil_ma = fft_ceil_ma + (fft_ceil - fft_ceil_ma) * 0.05;
fft_ceil_maa = fft_ceil_maa + (fft_ceil_ma - fft_ceil_maa) * 0.05;
fft_floor_ma = fft_floor_ma + (fft_floor - fft_floor_ma) * 0.05;
fft_floor_maa = fft_floor_maa + (fft_floor_ma - fft_floor_maa) * 0.05;
for (int i = 0, iMax = fft_size; i < iMax; i++) {
float v = (log10(fft_result_maa[i] - fft_floor_maa) / log10(fft_ceil_maa - fft_floor_maa));
spectrum_points[i * 2] = ((float) i / (float) iMax);
spectrum_points[i * 2 + 1] = v;
}
if (spectrumCanvas) {
spectrumCanvas->spectrum_points.assign(spectrum_points.begin(), spectrum_points.end());
spectrumCanvas->getSpectrumContext()->setCeilValue(fft_ceil_maa);
spectrumCanvas->getSpectrumContext()->setFloorValue(fft_floor_maa);
}
}
}
*/
}

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#pragma once
#include "VisualProcessor.h"
#include "WaterfallCanvas.h"
class WaterfallVisualData : public ReferenceCounter {
};
class WaterfallVisualProcessor : public VisualProcessor<DemodulatorThreadIQData, WaterfallVisualData> {
protected:
virtual void process() {
/*
long double currentZoom = zoom;
if (mouseZoom != 1) {
currentZoom = mouseZoom;
mouseZoom = mouseZoom + (1.0 - mouseZoom) * 0.2;
if (fabs(mouseZoom-1.0)<0.01) {
mouseZoom = 1;
}
}
long long bw;
if (currentZoom != 1) {
long long freq = wxGetApp().getFrequency();
if (currentZoom < 1) {
centerFreq = getCenterFrequency();
bw = getBandwidth();
bw = (long long) ceil((long double) bw * currentZoom);
if (bw < 100000) {
bw = 100000;
}
if (mouseTracker.mouseInView()) {
long long mfreqA = getFrequencyAt(mouseTracker.getMouseX());
setBandwidth(bw);
long long mfreqB = getFrequencyAt(mouseTracker.getMouseX());
centerFreq += mfreqA - mfreqB;
}
setView(centerFreq, bw);
if (spectrumCanvas) {
spectrumCanvas->setView(centerFreq, bw);
}
} else {
if (isView) {
bw = getBandwidth();
bw = (long long) ceil((long double) bw * currentZoom);
if (bw >= wxGetApp().getSampleRate()) {
disableView();
if (spectrumCanvas) {
spectrumCanvas->disableView();
}
} else {
if (mouseTracker.mouseInView()) {
long long mfreqA = getFrequencyAt(mouseTracker.getMouseX());
setBandwidth(bw);
long long mfreqB = getFrequencyAt(mouseTracker.getMouseX());
centerFreq += mfreqA - mfreqB;
}
setView(getCenterFrequency(), bw);
if (spectrumCanvas) {
spectrumCanvas->setView(centerFreq, bw);
}
}
}
}
if (centerFreq < freq && (centerFreq - bandwidth / 2) < (freq - wxGetApp().getSampleRate() / 2)) {
centerFreq = (freq - wxGetApp().getSampleRate() / 2) + bandwidth / 2;
}
if (centerFreq > freq && (centerFreq + bandwidth / 2) > (freq + wxGetApp().getSampleRate() / 2)) {
centerFreq = (freq + wxGetApp().getSampleRate() / 2) - bandwidth / 2;
}
}
std::vector<liquid_float_complex> *data = &input->data;
if (data && data->size()) {
// if (fft_size != data->size() && !isView) {
// Setup(data->size(), waterfall_lines);
// }
// if (last_bandwidth != bandwidth && !isView) {
// Setup(bandwidth, waterfall_lines);
// }
if (spectrum_points.size() < fft_size * 2) {
spectrum_points.resize(fft_size * 2);
}
unsigned int num_written;
if (isView) {
if (!input->frequency || !input->sampleRate) {
return;
}
resamplerRatio = (double) (bandwidth) / (double) input->sampleRate;
int desired_input_size = fft_size / resamplerRatio;
if (input->data.size() < desired_input_size) {
// std::cout << "fft underflow, desired: " << desired_input_size << " actual:" << input->data.size() << std::endl;
desired_input_size = input->data.size();
}
if (centerFreq != input->frequency) {
if ((centerFreq - input->frequency) != shiftFrequency || lastInputBandwidth != input->sampleRate) {
if (abs(input->frequency - centerFreq) < (wxGetApp().getSampleRate() / 2)) {
shiftFrequency = centerFreq - input->frequency;
nco_crcf_reset(freqShifter);
nco_crcf_set_frequency(freqShifter, (2.0 * M_PI) * (((double) abs(shiftFrequency)) / ((double) input->sampleRate)));
}
}
if (shiftBuffer.size() != desired_input_size) {
if (shiftBuffer.capacity() < desired_input_size) {
shiftBuffer.reserve(desired_input_size);
}
shiftBuffer.resize(desired_input_size);
}
if (shiftFrequency < 0) {
nco_crcf_mix_block_up(freqShifter, &input->data[0], &shiftBuffer[0], desired_input_size);
} else {
nco_crcf_mix_block_down(freqShifter, &input->data[0], &shiftBuffer[0], desired_input_size);
}
} else {
shiftBuffer.assign(input->data.begin(), input->data.end());
}
if (!resampler || bandwidth != lastBandwidth || lastInputBandwidth != input->sampleRate) {
float As = 60.0f;
if (resampler) {
msresamp_crcf_destroy(resampler);
}
resampler = msresamp_crcf_create(resamplerRatio, As);
lastBandwidth = bandwidth;
lastInputBandwidth = input->sampleRate;
}
int out_size = ceil((double) (desired_input_size) * resamplerRatio) + 512;
if (resampleBuffer.size() != out_size) {
if (resampleBuffer.capacity() < out_size) {
resampleBuffer.reserve(out_size);
}
resampleBuffer.resize(out_size);
}
msresamp_crcf_execute(resampler, &shiftBuffer[0], desired_input_size, &resampleBuffer[0], &num_written);
resampleBuffer.resize(fft_size);
if (num_written < fft_size) {
for (int i = 0; i < num_written; i++) {
fft_in_data[i][0] = resampleBuffer[i].real;
fft_in_data[i][1] = resampleBuffer[i].imag;
}
for (int i = num_written; i < fft_size; i++) {
fft_in_data[i][0] = 0;
fft_in_data[i][1] = 0;
}
} else {
for (int i = 0; i < fft_size; i++) {
fft_in_data[i][0] = resampleBuffer[i].real;
fft_in_data[i][1] = resampleBuffer[i].imag;
}
}
} else {
num_written = data->size();
if (data->size() < fft_size) {
for (int i = 0, iMax = data->size(); i < iMax; i++) {
fft_in_data[i][0] = (*data)[i].real;
fft_in_data[i][1] = (*data)[i].imag;
}
for (int i = data->size(); i < fft_size; i++) {
fft_in_data[i][0] = 0;
fft_in_data[i][1] = 0;
}
} else {
for (int i = 0; i < fft_size; i++) {
fft_in_data[i][0] = (*data)[i].real;
fft_in_data[i][1] = (*data)[i].imag;
}
}
}
bool execute = false;
if (num_written >= fft_size) {
execute = true;
memcpy(in, fft_in_data, fft_size * sizeof(fftwf_complex));
memcpy(fft_last_data, in, fft_size * sizeof(fftwf_complex));
} else {
if (last_data_size + num_written < fft_size) { // priming
unsigned int num_copy = fft_size - last_data_size;
if (num_written > num_copy) {
num_copy = num_written;
}
memcpy(fft_last_data, fft_in_data, num_copy * sizeof(fftwf_complex));
last_data_size += num_copy;
} else {
unsigned int num_last = (fft_size - num_written);
memcpy(in, fft_last_data + (last_data_size - num_last), num_last * sizeof(fftwf_complex));
memcpy(in + num_last, fft_in_data, num_written * sizeof(fftwf_complex));
memcpy(fft_last_data, in, fft_size * sizeof(fftwf_complex));
execute = true;
}
}
if (execute) {
fftwf_execute(plan);
float fft_ceil = 0, fft_floor = 1;
if (fft_result.size() < fft_size) {
fft_result.resize(fft_size);
fft_result_ma.resize(fft_size);
fft_result_maa.resize(fft_size);
}
int n;
for (int i = 0, iMax = fft_size / 2; i < iMax; i++) {
float a = out[i][0];
float b = out[i][1];
float c = sqrt(a * a + b * b);
float x = out[fft_size / 2 + i][0];
float y = out[fft_size / 2 + i][1];
float z = sqrt(x * x + y * y);
fft_result[i] = (z);
fft_result[fft_size / 2 + i] = (c);
}
for (int i = 0, iMax = fft_size; i < iMax; i++) {
if (isView) {
fft_result_maa[i] += (fft_result_ma[i] - fft_result_maa[i]) * 0.65;
fft_result_ma[i] += (fft_result[i] - fft_result_ma[i]) * 0.65;
} else {
fft_result_maa[i] += (fft_result_ma[i] - fft_result_maa[i]) * 0.65;
fft_result_ma[i] += (fft_result[i] - fft_result_ma[i]) * 0.65;
}
if (fft_result_maa[i] > fft_ceil) {
fft_ceil = fft_result_maa[i];
}
if (fft_result_maa[i] < fft_floor) {
fft_floor = fft_result_maa[i];
}
}
fft_ceil += 0.25;
fft_floor -= 1;
fft_ceil_ma = fft_ceil_ma + (fft_ceil - fft_ceil_ma) * 0.05;
fft_ceil_maa = fft_ceil_maa + (fft_ceil_ma - fft_ceil_maa) * 0.05;
fft_floor_ma = fft_floor_ma + (fft_floor - fft_floor_ma) * 0.05;
fft_floor_maa = fft_floor_maa + (fft_floor_ma - fft_floor_maa) * 0.05;
for (int i = 0, iMax = fft_size; i < iMax; i++) {
float v = (log10(fft_result_maa[i] - fft_floor_maa) / log10(fft_ceil_maa - fft_floor_maa));
spectrum_points[i * 2] = ((float) i / (float) iMax);
spectrum_points[i * 2 + 1] = v;
}
if (spectrumCanvas) {
spectrumCanvas->spectrum_points.assign(spectrum_points.begin(), spectrum_points.end());
spectrumCanvas->getSpectrumContext()->setCeilValue(fft_ceil_maa);
spectrumCanvas->getSpectrumContext()->setFloorValue(fft_floor_maa);
}
}
}
*/
}
};