P10.8: rebuild the SFX bank from the user's Triple Treat SFX pack

Replace the 9-cue bank with best-fit selections from the user-provided
Triple_Treat_SFX.zip, converted to the engine format (mono / 44100 / Int16,
<= ~600 ms) and peak-normalized to a gentle, consistent -15 dBFS. Drop-in:
audio.sx and all wiring are untouched; only assets/audio/** changes.

Per-cue source within the pack:
  swap   <- Transition SFX/Swipe FX 1   (light swipe = the swap gesture)
  match  <- Pop:Bubble SFX/Pop FX 5     (juicy candy pop, first clear)
  combo1..5 <- Pop:Bubble SFX/Pop FX 3  (one pop pitch-laddered +0/+2/+4/+7/+9
               semitones; the pack's Match set does not ascend monotonically)
  win    <- Success:Power-Up SFX/Power Up FX 1 (short triumphant)
  lose   <- Fail SFX/Fail FX 2          (gentle tonal, not boomy)

combo1..5 ascend in fundamental: 687 < 771 < 865 < 1029 < 1155 Hz. The 30 MB
pack and its .meta/__MACOSX cruft are not committed; LICENSE.txt records the
exact per-cue source file within the pack.

assets/audio/LICENSE.txt

@@ -1,100 +1,72 @@
 m3te sound effects
 ==================
 
-Every shipped cue is a REAL, FREE-licensed sound effect (all CC0 1.0 / public
-domain), chosen and processed to EVOKE a sweet, juicy, tactile candy-game feel.
+The nine shipped cues (swap, match, combo1..5, win, lose) are best-fit
+selections from the user-provided "Triple Treat SFX" pack
+(Triple_Treat_SFX.zip, ~30 MB, 280 files, Unity-style with .meta sidecars),
+chosen per game event and converted for the candy match-3 feel (P10.8).
 
-  >>> NONE of these are ripped from Candy Crush or any King-owned audio. They are
-  >>> independent CC0 assets that merely evoke a similar candy/jelly character.
+  >>> The full pack is NOT committed — only the selected, converted cues live
+  >>> here. The pack was supplied directly by the user for this game; its source
+  >>> archive is Triple_Treat_SFX.zip (kept outside the repo, in ~/Downloads).
 
 All files are delivered in exactly the format iOS System Sound Services loads
-directly via audio.sx: WAVE / mono / 44100 Hz / signed-16-bit PCM.
+directly via audio.sx: WAVE / mono / 44100 Hz / signed-16-bit PCM. The pack's
+sources are 24-bit / 48 kHz / stereo; each was down-mixed to mono, trimmed to
+its punchy window, peak-normalized, and re-wrapped to the canonical container.
 
-The bank is deliberately SOFT and GENTLE (P10.7 softening pass, see "Softening"
-below): every cue eases in instead of snapping, the brittle top end is rolled
-off for a warm rounded tone, and loudness is dialed well down. System Sound
-Services has no runtime volume, so loudness is baked into the file: the bank
-peaks at a quiet -15.5 dBFS, with the swap blip and the lose "aww" softer still
-at -17.5 dBFS.
+The bank is deliberately GENTLE (the user rejected aggressive SFX twice): every
+cue is peak-normalized to a quiet, consistent -15 dBFS, eases in with a short
+fade to tame the attack transient, and rounds out with a cosine fade-out tail.
+The pack's candy character is preserved — the cues are not re-synthesized.
 
-Licenses
---------
-CC0 1.0 (public domain): https://creativecommons.org/publicdomain/zero/1.0/
-Versilian Community Sample Library (VCSL), CC0: https://github.com/sgossner/VCSL
-Freesound (per-sound CC0, links below): https://freesound.org
+Provenance: the user-provided "Triple Treat SFX" pack
+-----------------------------------------------------
+Each cue below names the EXACT source file within the pack it was selected from
+(paths relative to the pack's "Triple Treat SFX/" root). Because the pack came
+from the user for this game, no external license was hunted; provenance is the
+supplied Triple_Treat_SFX.zip.
 
-Per-file provenance & candy character
--------------------------------------
+swap.wav    — soft, light SWIPE matching the swap gesture (fires on every swipe,
+              so kept subtle). Distinct timbre from the candy pops.
+              Source: Transition SFX/Swipe FX 1-RCM.wav
+              Trimmed to the swipe body (~0.44 s), faded, peak-normalized -15 dBFS.
 
-swap.wav    — soft, light blip/bubble.
-              Freesound "Pop 01" (#506546) by LilMati — CC0.
-              https://freesound.org/people/LilMati/sounds/506546/
-              Trimmed to the single pop (~89 ms), faded, peak-normalized.
+match.wav   — bright, juicy candy POP (the satisfying first-clear reward).
+              Source: Pop:Bubble SFX/Pop FX 5-RCM.wav
+              Trimmed to the single pop (~0.44 s), faded, peak-normalized -15 dBFS.
 
-match.wav   — bright, juicy candy POP (the "tasty" match reward).
-              Freesound "Cartoon Pop" (#741368) by Mish7913 — CC0.
-              https://freesound.org/people/Mish7913/sounds/741368/
-              Trimmed to the single pop (~260 ms), faded, peak-normalized.
+combo1..5.wav — the candy-cascade ladder: ONE clean pop pitch-laddered up a
+              major-pentatonic run (+0/+2/+4/+7/+9 semitones) so deeper cascades
+              pop higher. The pack's Match FX set does NOT ascend monotonically,
+              so a single good pop was real-resample pitch-shifted instead.
+              Source: Pop:Bubble SFX/Pop FX 3-RCM.wav
+              Real DSP (linear-interpolation resample) per step; trimmed
+              (~0.36 s down to ~0.21 s as pitch rises), faded, peak-normalized
+              -15 dBFS. Measured fundamentals (tools/measure_pitch.py), strictly
+              ascending:
+                combo1 687 Hz < combo2 771 < combo3 865 < combo4 1029 < combo5 1155
 
-combo1..5.wav — warm, sweet MARIMBA mallet notes ascending a C-major pentatonic
-              (C5 D5 E5 G5 A5) — the candy-cascade sparkle, warm not glassy.
-              Source: VCSL "Marimba" single note F5 (med velocity) — CC0.
-              github.com/sgossner/VCSL .../Idiophones/Struck Idiophones/Marimba
-              The one marimba note is real-resample pitch-laddered (ffmpeg
-              asetrate/aresample) to C5/D5/E5/G5/A5, trimmed (~280 ms), faded,
-              peak-normalized. Measured dominant partials (tools/measure_pitch.py),
-              strictly ascending:
-                combo1 1045 Hz < combo2 1173 < combo3 1317 < combo4 1566 < combo5 1758
-              (these are the marimba's strong ~2x partial; perceived pitch is
-              one octave lower: C5 523 .. A5 880.)
+win.wav     — short, triumphant POWER-UP cue (level won).
+              Source: Success:Power-Up SFX/Power Up FX 1-RCM.wav
+              Trimmed to the front-loaded body (~0.60 s), faded, peak-normalized
+              -15 dBFS.
 
-win.wav     — short, sugary, triumphant GLOCKENSPIEL bell fanfare.
-              Source: VCSL "Glockenspiel" notes C5 + G5 + C6 (med velocity) — CC0.
-              github.com/sgossner/VCSL .../Idiophones/Struck Idiophones/Glockenspiel
-              The three real bell notes are trimmed and sequenced into an
-              ascending C5->G5->C6 arpeggio (ffmpeg adelay/amix), ~580 ms,
-              faded, peak-normalized.
-
-lose.wav    — soft, gentle, descending "aww" (not a buzzer).
-              Source: VCSL "Marimba" notes B4 + G4 (med velocity) — CC0.
-              github.com/sgossner/VCSL .../Idiophones/Struck Idiophones/Marimba
-              The two real marimba notes are sequenced into a gentle descending
-              B4->G4 gesture (ffmpeg adelay/amix), ~490 ms, faded, normalized to
-              the softer -17.5 dBFS.
+lose.wav    — soft, gentle tonal FAIL (level lost) — not boomy or harsh.
+              Source: Fail SFX/Fail FX 2-RCM.wav
+              Trimmed to the body (~0.58 s) with a long cosine fade-out, peak-
+              normalized -15 dBFS.
 
 clear.wav   — "confirmation_001" from Kenney "Interface Sounds" (CC0).
               https://kenney.nl/assets/interface-sounds
-              NOT loaded by the shipped game; kept as a CC0 reference clip.
+              NOT loaded by the shipped game; kept as a CC0 reference clip
+              (tools/measure_pitch.py uses its ~784 Hz fundamental as a baseline).
 
 Processing
 ----------
-
-Sources downloaded as their original CC0 files (VCSL .wav notes from GitHub;
-Freesound CC0 high-quality previews). Each cue was decoded, down-mixed to mono,
-trimmed to its transient, optionally pitch-shifted / sequenced with real ffmpeg
-DSP (asetrate/aresample, adelay/amix, afade), peak-normalized, and re-wrapped to
-the canonical WAVE/LEI16/44100/mono container with afconvert. The shipped game
-never runs any build tool; it only loads the finished WAVs.
-
-Softening (P10.7)
------------------
-
-The candy CHARACTER of the P10.6 bank was right but still hit too hard, so each
-finished cue was re-processed with real ffmpeg DSP — no re-synthesis, same CC0
-sources — to be SOFT and GENTLE:
-
-  1. Onset eased in   — a short qsin fade-in (8-14 ms) tames the attack transient
-                        so pops "bloop" instead of "snap".
-  2. Highs rolled off — a warm two-pole low-pass (2.6 kHz swap/lose, 3.0 kHz
-                        match/combo, 3.6 kHz win) removes the brittle/edgy top
-                        end. Spectral centroid drops roughly 40-60% per cue; the
-                        > 4 kHz energy fraction collapses (e.g. win 76% -> 28%,
-                        combos ~10% -> <1%). The win keeps a little glockenspiel
-                        sparkle by design; everything else is rounded right down.
-  3. Loudness lowered — re-normalized to the soft -15.5 / -17.5 dBFS targets
-                        above (down from ~-9 / -12 dBFS), lowering BOTH peak and
-                        RMS on every cue, then re-wrapped with afconvert.
-
-The cascade ladder is preserved: combo1..5 still ascend in fundamental pitch
-(measured dominant partials unchanged at 1045 < 1173 < 1317 < 1566 < 1758 Hz,
-all below the 3.0 kHz low-pass corner). A short qsin fade-out rounds each tail.
+Each chosen pack cue was decoded, down-mixed to mono, trimmed to its transient
+window, optionally pitch-shifted with real resample DSP (combos only), eased in
+with a short fade and rounded out with a cosine fade-out, peak-normalized to
+-15 dBFS, and re-wrapped to the canonical WAVE/LEI16/44100/mono container with
+afconvert. The shipped game never runs any build tool; it only loads the
+finished WAVs. The 30 MB pack and its .meta / __MACOSX cruft are not committed.