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[mesh2faust] Simplify mode frequency scaling #1125

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Mar 2, 2025
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[mesh2faust] Simplify mode frequency scaling #1125

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24 changes: 9 additions & 15 deletions tools/physicalModeling/mesh2faust/src/mesh2faust.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -208,22 +208,16 @@ std::string m2f::modal2faust(const ModalModel &model, DspGenArguments args) {
<< "nModes = " << nModes << ";\n";
if (nExPos > 1) dsp << "nExPos = " << nExPos << ";\n";

if (args.freqControl) {
dsp << "modeFreqRatios(n) = ba.take(n+1,(";
for (int mode = 0; mode < nModes; ++mode) {
dsp << freqs[mode] / freqs.front();
if (mode < nModes - 1) dsp << ",";
}
dsp << "));\n"
<< "modeFreqs(mode) = freq*modeFreqRatios(mode);\n";
} else {
dsp << "modeFreqs(n) = ba.take(n+1,(";
for (int mode = 0; mode < nModes; ++mode) {
dsp << freqs[mode];
if (mode < nModes - 1) dsp << ",";
}
dsp << "));\n";
dsp << "modeFreqsUnscaled(n) = ba.take(n+1,(";
for (int mode = 0; mode < nModes; ++mode) {
dsp << freqs[mode];
if (mode < nModes - 1) dsp << ",";
}
dsp << "));\n";
dsp << "modeFreqs(mode) = ";
if (args.freqControl) dsp << "freq*modeFreqsUnscaled(mode)/modeFreqsUnscaled(0)";
else dsp << "modeFreqsUnscaled(mode)";
dsp << ";\n";

dsp << "modesGains(p,n) = waveform{";
for (int exPos = 0; exPos < gains.size(); ++exPos) {
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