{"adoption": {"forks": 535, "observed_at": "2026-08-28T04:08:28.878145+00:00", "stars": 3913}, "canonical_url": "https://ross.abutalabs.com/products/cpal", "card": {"archived": false, "artifact_type": "library", "description": "Low-level cross-platform audio I/O library in Rust", "domain": ["cross-platform"], "enriched": true, "function": ["audio-processing"], "health_score": 99, "homepage": null, "language": "Rust", "license": "Apache-2.0", "license_family": "permissive", "maturity": "stable", "member_repos": ["RustAudio/cpal"], "name": "RustAudio/cpal", "platform": ["windows", "wasm", "rust", "cross-platform"], "pushed_at": "2026-08-23T21:03:50+00:00", "repo": "RustAudio/cpal", "stars": 3913, "tags": ["audio-io", "playback", "recording", "alsa", "coreaudio", "wasapi", "jack", "pipewire", "low-level", "audio", "linux", "macos", "android", "ios"], "topics": ["rust", "audio", "sound"], "urls": [], "use_cases": ["capture microphone input in a Rust application", "play raw audio samples to speakers", "enumerate audio devices and their supported configurations", "build a low-latency audio stream with ASIO or JACK", "record system audio on macOS via loopback", "run audio I/O in the browser via Web Audio API"], "what_it_is": "CPAL is a low-level cross-platform audio input/output library written in Rust. It provides device enumeration, stream configuration, and building input/output streams across many platforms and backends.", "when_to_avoid": ["you just want simple high-level playback of audio files - use Rodio instead", "you need audio processing, mixing, or DSP features - cpal only handles I/O", "you are not working in Rust"], "when_to_choose": ["you need direct, low-level control over audio devices and streams in Rust", "you need cross-platform audio I/O including mobile and WebAssembly", "you need low-latency playback or capture with optional ASIO/JACK backends"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/cpal", "repo": "RustAudio/cpal", "role": "main", "score": 95}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:08:28.878145+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-29T18:25:04.080210+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "257dd8b5a505c27daa90eb4d61bcb10a3bf6687758f5d8ac5a095d88c0a18887", "fetched_at": "2026-08-28T04:08:28.878145+00:00", "kind": "readme", "missing": false, "url": "https://github.com/RustAudio/cpal"}, {"content_hash": "5a0a62cf07479c995cc344409fc1dee05fff486606f0b73c68317cfc3420de11", "fetched_at": "2026-08-29T09:18:54.991930+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/cpal"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:08:28.878145+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-29T18:25:04.080210+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "257dd8b5a505c27daa90eb4d61bcb10a3bf6687758f5d8ac5a095d88c0a18887", "fetched_at": "2026-08-28T04:08:28.878145+00:00", "kind": "readme", "missing": false, "url": "https://github.com/RustAudio/cpal"}, {"content_hash": "5a0a62cf07479c995cc344409fc1dee05fff486606f0b73c68317cfc3420de11", "fetched_at": "2026-08-29T09:18:54.991930+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/cpal"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-29T18:25:04.080210+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "257dd8b5a505c27daa90eb4d61bcb10a3bf6687758f5d8ac5a095d88c0a18887", "fetched_at": "2026-08-28T04:08:28.878145+00:00", "kind": "readme", "missing": false, "url": "https://github.com/RustAudio/cpal"}, {"content_hash": "5a0a62cf07479c995cc344409fc1dee05fff486606f0b73c68317cfc3420de11", "fetched_at": "2026-08-29T09:18:54.991930+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/cpal"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:08:28.878145+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:08:28.878145+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:08:28.878145+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-29T18:25:04.080210+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "257dd8b5a505c27daa90eb4d61bcb10a3bf6687758f5d8ac5a095d88c0a18887", "fetched_at": "2026-08-28T04:08:28.878145+00:00", "kind": "readme", "missing": false, "url": "https://github.com/RustAudio/cpal"}, {"content_hash": "5a0a62cf07479c995cc344409fc1dee05fff486606f0b73c68317cfc3420de11", "fetched_at": "2026-08-29T09:18:54.991930+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/cpal"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:08:28.878145+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:08:28.878145+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-29T18:25:04.080210+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "257dd8b5a505c27daa90eb4d61bcb10a3bf6687758f5d8ac5a095d88c0a18887", "fetched_at": "2026-08-28T04:08:28.878145+00:00", "kind": "readme", "missing": false, "url": "https://github.com/RustAudio/cpal"}, {"content_hash": "5a0a62cf07479c995cc344409fc1dee05fff486606f0b73c68317cfc3420de11", "fetched_at": "2026-08-29T09:18:54.991930+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/cpal"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:08:28.878145+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:08:28.878145+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:08:28.878145+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-29T18:25:04.080210+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "257dd8b5a505c27daa90eb4d61bcb10a3bf6687758f5d8ac5a095d88c0a18887", "fetched_at": "2026-08-28T04:08:28.878145+00:00", "kind": "readme", "missing": false, "url": "https://github.com/RustAudio/cpal"}, {"content_hash": "5a0a62cf07479c995cc344409fc1dee05fff486606f0b73c68317cfc3420de11", "fetched_at": "2026-08-29T09:18:54.991930+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/cpal"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:08:28.878145+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:08:28.878145+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-29T18:25:04.080210+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "257dd8b5a505c27daa90eb4d61bcb10a3bf6687758f5d8ac5a095d88c0a18887", "fetched_at": "2026-08-28T04:08:28.878145+00:00", "kind": "readme", "missing": false, "url": "https://github.com/RustAudio/cpal"}, {"content_hash": "5a0a62cf07479c995cc344409fc1dee05fff486606f0b73c68317cfc3420de11", "fetched_at": "2026-08-29T09:18:54.991930+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/cpal"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-29T18:25:04.080210+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "257dd8b5a505c27daa90eb4d61bcb10a3bf6687758f5d8ac5a095d88c0a18887", "fetched_at": "2026-08-28T04:08:28.878145+00:00", "kind": "readme", "missing": false, "url": "https://github.com/RustAudio/cpal"}, {"content_hash": "5a0a62cf07479c995cc344409fc1dee05fff486606f0b73c68317cfc3420de11", "fetched_at": "2026-08-29T09:18:54.991930+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/cpal"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-29T18:25:04.080210+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "257dd8b5a505c27daa90eb4d61bcb10a3bf6687758f5d8ac5a095d88c0a18887", "fetched_at": "2026-08-28T04:08:28.878145+00:00", "kind": "readme", "missing": false, "url": "https://github.com/RustAudio/cpal"}, {"content_hash": "5a0a62cf07479c995cc344409fc1dee05fff486606f0b73c68317cfc3420de11", "fetched_at": "2026-08-29T09:18:54.991930+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/cpal"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-29T18:25:04.080210+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "257dd8b5a505c27daa90eb4d61bcb10a3bf6687758f5d8ac5a095d88c0a18887", "fetched_at": "2026-08-28T04:08:28.878145+00:00", "kind": "readme", "missing": false, "url": "https://github.com/RustAudio/cpal"}, {"content_hash": "5a0a62cf07479c995cc344409fc1dee05fff486606f0b73c68317cfc3420de11", "fetched_at": "2026-08-29T09:18:54.991930+00:00", "kind": "registry_crates", "missing": false, "url": "https://crates.io/api/v1/crates/cpal"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 99, "longevity": 100, "rhythm": 86}, "computed_at": "2026-09-03T02:39:23.370411+00:00", "flags": [], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 4283, "days_push": 10, "days_rel": 17, "gap_med": 0, "n_releases_24m": 90}, "score": 95, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}