{"id":23105069,"url":"https://github.com/shamazmazum/wavelet-audio","last_synced_at":"2026-02-02T12:16:22.085Z","repository":{"id":146633324,"uuid":"153886307","full_name":"shamazmazum/wavelet-audio","owner":"shamazmazum","description":"Audio compressor which uses (4,2) CDF wavelet","archived":false,"fork":false,"pushed_at":"2025-05-21T14:34:18.000Z","size":667,"stargazers_count":8,"open_issues_count":0,"forks_count":0,"subscribers_count":3,"default_branch":"master","last_synced_at":"2025-05-21T14:35:57.244Z","etag":null,"topics":["audio","codec","wavelet"],"latest_commit_sha":null,"homepage":"","language":"Common Lisp","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"bsd-2-clause","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/shamazmazum.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2018-10-20T08:42:16.000Z","updated_at":"2025-05-21T13:53:35.000Z","dependencies_parsed_at":"2024-01-15T14:44:26.162Z","dependency_job_id":"d360557e-a0dd-445a-a43b-fea853ece72f","html_url":"https://github.com/shamazmazum/wavelet-audio","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/shamazmazum/wavelet-audio","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/shamazmazum%2Fwavelet-audio","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/shamazmazum%2Fwavelet-audio/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/shamazmazum%2Fwavelet-audio/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/shamazmazum%2Fwavelet-audio/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/shamazmazum","download_url":"https://codeload.github.com/shamazmazum/wavelet-audio/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/shamazmazum%2Fwavelet-audio/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":261945358,"owners_count":23234236,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["audio","codec","wavelet"],"created_at":"2024-12-17T00:37:38.273Z","updated_at":"2026-02-02T12:16:17.066Z","avatar_url":"https://github.com/shamazmazum.png","language":"Common Lisp","funding_links":[],"categories":[],"sub_categories":[],"readme":"Wavelet-audio\n-------------\n![CI](https://github.com/shamazmazum/wavelet-audio/workflows/CI/badge.svg)\n\nThis package is a proof of concept of wavelet transform-based lossless\naudio codec. **wavelet-audio** uses  (4,2) B-spline wavelet and Rice\nentropy coding to compress audio. Compression speed is slow,\ndecompression speed is much faster.\n\nCompression ratio is 25-50% and is comparable to ratio of flac codec.\n\nExamples:\n========\n\n~~~~~~~~{lisp}\n(wavelet-audio:encode-wavelet-audio \"~/file.wav\" \"~/file.wa\")\n(wavelet-audio:decode-wavelet-audio \"~/file.wa\" \"~/file.wav\")\n~~~~~~~~\n\nDocumentation:\n=============\nVisit [the project page](http://shamazmazum.github.io/wavelet-audio)\non github pages.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fshamazmazum%2Fwavelet-audio","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fshamazmazum%2Fwavelet-audio","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fshamazmazum%2Fwavelet-audio/lists"}