Matiq
2c99a4fc96
- th_b3c0 (0x18000b3c0) = pure complex multiply FIR × audio in freq-domain - scan3.py: pre-scan approach finds ctx in 1.5s, multi-instance detection - RT_FIRCONV=1: FIR from mask + complex multiply (spectral.cpp) - RT_FIRPOWER=1: power-law mask from raw spectrum (framed_model.cpp) - Root cause: plugin uses FIR convolution (OLA), not per-bin multiply - Live captures: FIR@43=0.524, mask@43=0.510, final gain=0.305 - Best result: RT_LUT_OFF gives cut@500=-8.18 dB (ref -10.32) - NOTES_LEVEL 24e/24f/24g appended
41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
#pragma once
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#include <cstddef>
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#include <cstdint>
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#include <complex>
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#include <vector>
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#include "fft.hpp"
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#include "framed_model.hpp"
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constexpr size_t DEFAULT_NFFT = 2048;
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constexpr size_t DEFAULT_HOP = 512;
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class SpectralProcessor {
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public:
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SpectralProcessor(size_t nfft = DEFAULT_NFFT, size_t hop = DEFAULT_HOP,
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float sample_rate = 44100.0f);
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~SpectralProcessor();
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void setDetectorParams(const std::vector<DetectorBand>& bands);
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void processBlock(float* in, float* out, size_t num_samples, size_t num_channels = 1);
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private:
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size_t nfft_;
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size_t hop_;
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double* window_;
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FFTPlan plan_;
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std::complex<double>* buf_;
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std::complex<double>* tmp_buf_;
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std::complex<double>* fir_buf_;
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std::complex<double>* fir_freq_;
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std::vector<double> fir_window_;
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std::vector<float> overlap_;
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std::vector<float> mask_;
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FramedDetector detector_;
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size_t frame_count_;
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size_t output_pos_;
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void computeWindow();
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void stftFrame(const float* in, std::complex<double>* out);
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void istftFrame(std::complex<double>* in, float* out, float* overlap);
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};
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