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Tighten transition band when tuner bandwidth is narrow

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This commit is contained in:
Michael Ossmann
2020-05-26 22:18:31 -06:00
committed by Mike Walters
parent e215f57b37
commit bfecbe73b7
1 changed files with 1 additions and 1 deletions
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spectrogramplot.cpp
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@@ -257,7 +257,7 @@ std::vector<float> SpectrogramPlot::getTunerTaps()
float cutoff = tuner.deviation() / (float)fftSize;
float gain = pow(10.0f, powerMax / -10.0f);
auto atten = 60.0f;
auto len = estimate_req_filter_len(0.05f, atten);
auto len = estimate_req_filter_len(std::min(cutoff, 0.05f), atten);
auto taps = std::vector<float>(len);
liquid_firdes_kaiser(len, cutoff, atten, 0.0f, taps.data());
std::transform(taps.begin(), taps.end(), taps.begin(),