ALAFC 1.3.0

Same v5 bitstream as 1.2.0 — files are fully interchangeable in both
directions (verified with MD5 checks: 1.2.0 code decodes 1.3.0 files
and vice versa).

The engine is rebuilt for speed and memory:

• FFT autocorrelation replaces the O(n^2) lag scan in LPC analysis
• Pruned LPC order search, windowed Rice parameter search
• Multithreaded segment coding (numba kernels run with nogil)
• Streaming encode: constant RAM regardless of file length
• Tight int16/int32 decode buffers; decode-to-WAV streams per segment
• Speed profiles: --fast (pure LPC+Rice), --normal (light NLMS),
  --max (full cascade, default — same compression as 1.2.0,
  byte-identical size on the demo corpus)

Measured on the reference machine (numba, 8 threads):

clip	encode max	encode fast	decode max	decode fast
44.1 kHz / 16-bit	21.6x RT (1.2.0: 10.8x)	26.4x RT	47x RT	516x RT
192 kHz / 24-bit	6.3x RT (1.2.0: 5.5x)	9.1x RT	4.8x RT	67.8x RT

Fast profile costs ~2-3 pp of compression ratio vs max.

ALAFC_1.3.0_windows.zip — standalone Windows binaries (numba
included). For the .py version: pip install numpy numba.

ALAFC 1.2.0

Per-segment stereo mode extended to FLAC's 4-way choice (L/R, mid/side,
L/side, side/R) instead of 2-way. Wins when the two channels have
noticeably different loudness. v1.1.0 files still decode unchanged.

ALAFC 1.1.0

Per-segment adaptive stereo mode (v4) + two new apps: NeoAmp
(GUI player) and TrueScope (frequency analysis + authenticity check).

ALAFC 1.0.0

v1.0.0

ALAFC 1.0.0 - initial release