38 lines
1.3 KiB
C++
38 lines
1.3 KiB
C++
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// tests/cpp/test_engine_analysis.cpp — XiasriAnalysis port smoke test.
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#include <cmath>
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#include "test_helpers.hpp"
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#include "../../nisps/engines/analysis.hpp"
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NISPS_TEST(analysis_concept) {
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static_assert(nisps::AudioEngine<nisps::AnalysisEngine>);
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NISPS_EXPECT(nisps::AnalysisEngine::param_count() == 0u);
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NISPS_EXPECT(nisps::AnalysisEngine::engine_id() == "analysis");
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}
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NISPS_TEST(analysis_features_in_range) {
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nisps::AnalysisEngine e;
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e.setup(48000.f);
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// Feed a 220 Hz sine.
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for (int n = 0; n < 48000; ++n) {
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const float x = std::sin(2.f * 3.14159265f * 220.f * n / 48000.f) * 0.5f;
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e.process({x, x});
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}
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const auto& f = e.features();
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NISPS_EXPECT(f.pitch >= 0.f && f.pitch <= 1.f);
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NISPS_EXPECT(f.aperiodicity >= 0.f && f.aperiodicity <= 1.f);
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NISPS_EXPECT(f.energy >= 0.f && f.energy <= 1.f);
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NISPS_EXPECT(f.attack >= 0.f && f.attack <= 1.f);
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NISPS_EXPECT(f.brightness >= 0.f && f.brightness <= 1.f);
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}
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NISPS_TEST(analysis_silence_gives_low_energy) {
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nisps::AnalysisEngine e;
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e.setup(48000.f);
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for (int n = 0; n < 48000; ++n) e.process({0.f, 0.f});
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const auto& f = e.features();
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NISPS_EXPECT(f.energy < 0.1f); // log envelope clamps to ~0
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NISPS_EXPECT(f.energy_crude == 0.f);
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}
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