 Matiq
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b1b4f2bdf7
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roadmap: detector decrypted in soothe_mem.bin, SNR 19.8dB; integrate twiddle loader
- fft.cpp: build_twiddle via soothe::twiddle_load (Cody-Waite sin/cos); drop dup init_plan
- fft_stage.cpp: cplx_mul/stage_complex/stage_double kernels -> phase fixed (corr +0.995)
- detect.cpp: level-dependent regional floor (no bell-boost), mask 10^(-1.041*depth*floor/20)
- burst500 metrics: ref -26.07 / ours -26.13 dBFS, corr 0.99475, SNR 19.80 dB, diff -0.065 dB
- KEY: FUN_180535880/536f90 bodies are decrypted real SSE in soothe_mem.bin; dispatch
table 0x182616008[0]=idx=4 -> 0x180009860 -> FUN_180040d40; region 0x18004xxxx = full
detector algorithm, absent from prior fun_map/decomp (Ghidra ran on encrypted file)
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2026-08-17 20:02:32 +03:00 |
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Matiq
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7dcbcf49b4
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dsp/: C++ skeleton with working FFT/WOLA STFT
- Cooley-Tukey radix-2 FFT (forward + inverse with /N normalization)
- WOLA STFT/ISTFT with Hann window (nfft=2048, hop=512)
- WAV16 read + WAV24 write (fixed aliasing bug in read)
- Fixed in-place processing bug (separate input/output buffers)
- Biquad filter (peak/shelf/reject)
- Peak detector skeleton
- MS encode/decode (M8 stereo)
- Harness: WAV16 → STFT → WAV24 passthrough verified non-zero output
Verified: burst500.wav passthrough produces output RMS=0.0678
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2026-08-17 11:25:35 +03:00 |
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