QA: "the sfx is too loud and scratchy." Drop-in asset swap — no engine change.
Replace the 9 synthesized cues (swap, match, combo1..combo5, win, lose) with
real free-licensed (CC0 1.0) sound effects from Kenney's Interface Sounds /
Digital Audio packs:
swap <- pluck_002 match <- confirmation_002
win <- powerUp7 lose <- minimize_006
combo1..5 <- glass_001 pitch-laddered up a pentatonic run (0,+2,+4,+7,+9 st)
via resample DSP -> ascending fundamentals 1918..3226 Hz.
Every cue: mono / 44100 Hz / Int16 PCM, <=0.54 s. Whole bank peak-normalized to
-9 dBFS, so peak AND RMS are well below the old synth (old peak -0.7..-2.9 dB,
mean -5.8..-9.3 dB; new peak -9.0 dB, mean -22..-30 dB). Audibly cleaner — no
synth harmonics.
LICENSE.txt rewritten with real per-file provenance (source URL + CC0). clear.wav
(already a CC0 Kenney clip, not loaded by the engine) left unchanged. Engine
(audio.sx/board_view.sx/main.sx) untouched; sim build loads all 9 cues, zero
"load failed".
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