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remove dead code pt1
+4
-32
+1
-10
src/ext/vqt_kernel.c
+1
-10
src/ext/vqt_kernel.c
···
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}
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}
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// Calculate Q factor for constant-Q transform
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float VQT_CalculateQ(int binsPerOctave)
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{
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// Q = 1 / (2^(1/binsPerOctave) - 1)
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// For 12 bins/octave, Q ≈ 17.0
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return 1.0f / (pow(2.0, 1.0 / binsPerOctave) - 1.0f);
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}
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// Calculate variable Q factor optimized for 8K FFT constraint
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static float calculateVariableQ(float centerFreq)
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{
···
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// Stub implementations when FFT is unsupported
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void VQT_GenerateCenterFrequencies(float* frequencies, int numBins, float minFreq, float maxFreq) {}
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float VQT_CalculateQ(int binsPerOctave) { return 0.0f; }
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bool VQT_GenerateKernels(VqtKernel* kernels, const VqtKernelConfig* config) { return false; }
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#endif // TIC80_FFT_UNSUPPORTED
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#endif // TIC80_FFT_UNSUPPORTED
+1
-4
src/ext/vqt_kernel.h
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-4
src/ext/vqt_kernel.h
···
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// Returns true on success, false on failure
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bool VQT_GenerateKernels(VqtKernel* kernels, const VqtKernelConfig* config);
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// Calculate Q factor for given parameters
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float VQT_CalculateQ(int binsPerOctave);
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// Generate center frequencies for VQT bins
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void VQT_GenerateCenterFrequencies(float* frequencies, int numBins, float minFreq, float maxFreq);
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void VQT_GenerateCenterFrequencies(float* frequencies, int numBins, float minFreq, float maxFreq);
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-6
src/vqtdata.c
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-6
src/vqtdata.c
···
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#include <string.h>
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#include <stdlib.h>
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#include <math.h>
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// Global VQT data arrays
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float vqtData[VQT_BINS];
···
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float vqtNormalizedData[VQT_BINS];
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// Peak tracking for auto-gain
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float vqtPeakValue = 1.0f;
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float vqtPeakSmoothValue = 1.0f;
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// Enable flag (tied to fftEnabled initially)
···
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memset(vqtSmoothingData, 0, sizeof(vqtSmoothingData));
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memset(vqtNormalizedData, 0, sizeof(vqtNormalizedData));
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// Initialize peak values
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vqtPeakValue = 1.0f;
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// Initialize peak value
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vqtPeakSmoothValue = 1.0f;
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// Zero kernel pointers
···
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float vqtData[VQT_BINS] = {0};
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float vqtSmoothingData[VQT_BINS] = {0};
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float vqtNormalizedData[VQT_BINS] = {0};
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float vqtPeakValue = 1.0f;
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float vqtPeakSmoothValue = 1.0f;
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bool vqtEnabled = false;
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VqtKernel vqtKernels[VQT_BINS] = {{0}};
···
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void VQT_Init(void) {}
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void VQT_Cleanup(void) {}
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#endif // TIC80_FFT_UNSUPPORTED
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#endif // TIC80_FFT_UNSUPPORTED
-12
src/vqtdata.h
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src/vqtdata.h
···
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#include <stdbool.h>
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#define VQT_BINS 120
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#define VQT_OCTAVES 10
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#define VQT_BINS_PER_OCTAVE 12
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#define VQT_FFT_SIZE 8192 // 8K FFT - optimized variable-Q for responsive visualization, ~5.4 fps
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// VQT frequency range
···
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#define VQT_SMOOTHING_FACTOR 0.3f // Reduced from 0.7f for more responsive display
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#define VQT_SPARSITY_THRESHOLD 0.01f
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// Variable-Q configuration (optimized for 8K FFT)
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#define VQT_VARIABLE_Q_ENABLED 1
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#define VQT_8K_OPTIMIZED 1 // Uses Q values that fit within 8K FFT
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#define VQT_BASS_Q_MIN 7.4f // Minimum Q at 20 Hz (constrained by 8K)
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#define VQT_BASS_Q_MAX 17.0f // Full Q achieved at 80+ Hz
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#define VQT_TREBLE_Q_FACTOR 11.0f // Smoother for high frequencies
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// Spectral whitening removed - caused spreading issues with VQT's inherent spectral leakage
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// Raw VQT magnitude data
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extern float vqtData[VQT_BINS];
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···
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extern float vqtNormalizedData[VQT_BINS];
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// Peak tracking for auto-gain
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extern float vqtPeakValue;
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extern float vqtPeakSmoothValue;
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// Enable flag (tied to fftEnabled initially)