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fix/autosync-dtw-step-constraint
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byrongamatos b10bad351c fix(gp_autosync): slope-constrained DTW steps — stop path collapse on riff-based songs 
librosa.sequence.dtw's default step sizes permit pure horizontal/vertical
moves; on songs whose chroma is self-similar for long stretches the flat
cost surface let the path collapse (minutes of score onto one audio frame),
so auto-sync produced monotonic-but-garbage sync points and the per-bar
warp imported charts badly out of sync while reporting success.

Use the standard music-sync step pattern [[1,1],[1,2],[2,1]] (local tempo
ratio bounded to 0.5x-2x), falling back to unconstrained steps if the
global length ratio makes it infeasible.

Validated on the reported song (138 BPM tab, YouTube audio): coarse points
now track 1:1, refine holds slopes 0.77-1.04, warped downbeats hit onset
peaks at 3.3x background energy.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-05 22:12:02 +02:00
.claude/skills Clean release snapshot 2026-06-16 18:47:13 +02:00
.github fix(release): lowercase the ghcr repo name in image tags (#738) 2026-07-03 13:16:49 +02:00
.specify rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
content/starter Delete content/starter/beethoven-ode_to_joy.feedpak 2026-07-03 23:42:45 +02:00
data/progression Clean release snapshot 2026-06-16 18:47:13 +02:00
docs fix(tuner): mic-verify stamps the tuning it actually checked + on-device test plan (#684) 2026-07-01 11:45:26 +02:00
lib fix(gp_autosync): slope-constrained DTW steps — stop path collapse on riff-based songs 2026-07-05 22:12:02 +02:00
plugins Fix 3D drum/keys highways not resizing on fullscreen under splitscreen (#723) 2026-07-02 18:42:26 +02:00
scripts Merge remote-tracking branch 'origin/main' into feat/feedpak-jsonc 2026-07-01 03:27:38 -04:00
specs rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
static feat(highway): add "Colorblind (deuteranope)" string-color preset (#788) 2026-07-05 21:13:13 +02:00
tests feat(v3 library): genre field in the Fix-metadata popup Details tab (#780) 2026-07-05 21:12:55 +02:00
.dockerignore Clean release snapshot 2026-06-16 18:47:13 +02:00
.gitattributes Purge external-format terminology from code, tests and docs 2026-06-16 19:36:53 +01:00
.gitignore Bundle drum_highway_3d + keys_highway_3d as in-tree core plugins (#693) 2026-07-02 00:25:31 +02:00
build-proxmox-ct.sh rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
CHANGELOG.md fix(gp_autosync): slope-constrained DTW steps — stop path collapse on riff-based songs 2026-07-05 22:12:02 +02:00
CLAUDE.md perf: allocation/scan hardening for weaker hardware 2026-07-02 00:02:54 +02:00
CONTRIBUTING.md rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
docker-compose.nas.yml rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
docker-compose.yml rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
Dockerfile fix(docker): repin FFmpeg to autobuild-2026-07-03-13-21 2026-07-03 23:16:50 +02:00
LICENSE Clean release snapshot 2026-06-16 18:47:13 +02:00
main.py rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
package-lock.json rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
package.json rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
playwright.config.ts Clean release snapshot 2026-06-16 18:47:13 +02:00
pyproject.toml Clean release snapshot 2026-06-16 18:47:13 +02:00
requirements-test.txt Clean release snapshot 2026-06-16 18:47:13 +02:00
requirements.txt Make the library loader sloppak/loose-only 2026-06-16 19:09:53 +01:00
server.py feat(v3 library): genre field in the Fix-metadata popup Details tab (#780) 2026-07-05 21:12:55 +02:00
SUPPORTERS.md rename: slopsmith → feedBack, byron → got-feedBack (#537) 2026-06-23 11:03:01 +02:00
tailwind.config.js Re-enable the v3 "Support Us!" donate button (#727) 2026-07-03 00:21:10 +02:00
TODO.md docs: correct plugin URL casing after the feedBack rename (#576) 2026-06-23 11:20:23 +02:00
uv.lock Clean release snapshot 2026-06-16 18:47:13 +02:00
VERSION Bump version to 0.3.0-alpha.1 2026-07-03 13:41:50 +02:00