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Brandon ThomasandClaude Opus 5.5
330a698397
* Progress docs to the craftrules standard; full re-measure against Pro Tools 2026.4.1 Stage: alpha. Menu breadth 482/512 (94.1%, measured), feature breadth ~70%, ready for real work ~40%; ~350-570 agent-hours to beta, ~950-1,450 to full parity, calibrated on this repo's PR history. - ROADMAP.md rewritten: stage banner, two numbers, dimension/feature/language tables - docs/target-app-parity.md: authoritative assessment (area table moved from ROADMAP) - docs/gaps.md: 22 ranked gaps with evidence and estimates - docs/roadmap.md: milestones, current focus, beta plan - docs/ui-, file-format-, hardware-, plugin-, localization-parity.md: new checklists - docs/parity.md -> docs/parity-checklist.md (generated by cargo xtask parity) - architecture.md: video, vst3-host, au-host crates; device I/O limits Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * Stage: pre-alpha under the core-workflow gate Add the alpha gate to docs/roadmap.md: interface recording at a chosen buffer size, MIDI recording, and session interchange with Pro Tools fail, so the stage moves from alpha to pre-alpha (~5 points and ~110-180 agent-hours to alpha). Mark the alpha blockers in docs/gaps.md; update ROADMAP.md, target-app-parity.md and README. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * Add mainstream-practitioner and essentials-user readiness numbers Mainstream practitioner ~36% (weekly-area depth 50.6% x 0.90 interaction x 0.92 stability x 0.85 file exchange) and essentials user ~57% (core-feature depth 72.4% x 0.90 launch/stability x 0.90 discoverability x 0.97 files), with written weights, discounts and GitHub user evidence. Full ready-for-real-work checked against its written dimension weights (40.6%); unchanged at ~40%, stage unchanged. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * Readiness by audience: hours to ~95% for full, mainstream and essentials Full ~40% / 950-1,450 h, mainstream ~36% / 380-600 h, essentials ~57% / 110-200 h, calibrated on this repo's PR history. The full number is already an additive weighted sum over the written dimension table; method unchanged. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
76 lines
4.2 KiB
Markdown
76 lines
4.2 KiB
Markdown
# Hardware parity
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> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-10 · **Change:** major (first hardware audit against Pro Tools 2026.4.1) · **Target:** Avid Pro Tools Ultimate 2026.4.1
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A DAW is judged by how it drives audio interfaces, MIDI gear, control surfaces and sync. This is
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SoundCraft's weakest dimension. Ours is measured from `crates/playback` (cpal) and the absence of
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any MIDI-device or control-surface code; Pro Tools' from its documentation and Setup menus.
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**Hardware: ~12 % ready** (estimated). **Performance: ~35 %** (estimated; nothing benchmarked
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against Pro Tools). Remaining ≈ 110–180 h for hardware, 40–70 h for performance.
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Legend: ✅ works · 🟡 partial · ❌ missing.
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## Audio interfaces
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| Feature | Pro Tools (macOS / Windows) | SoundCraft macOS | Windows | Linux | FreeBSD | Web |
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|---|---|---|---|---|---|---|
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| Driver API | Core Audio / ASIO | 🟡 Core Audio via cpal | 🟡 WASAPI shared via cpal; no ASIO | 🟡 ALSA/Pulse via cpal; no JACK | 🟡 cpal (ALSA layer) | 🟡 Web Audio |
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| Choose playback device | ✅ Playback Engine | ❌ default output only | ❌ | ❌ | ❌ | ❌ |
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| Choose input device | ✅ | ❌ default input only (#42) | ❌ | ❌ | ❌ | ❌ |
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| Buffer size (32–2048) | ✅ | ❌ fixed 512-sample mix block | ❌ | ❌ | ❌ | ❌ |
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| Duplex stream on one clock | ✅ | ❌ separate input/output streams | ❌ | ❌ | ❌ | ❌ |
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| Hardware I/O mapping (I/O Setup to physical channels) | ✅ | 🟡 multichannel output in order; no per-channel map | 🟡 | 🟡 | 🟡 | ❌ |
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| Low-latency monitoring | ✅ | ❌ (`options.low_latency_monitoring` is a stored flag) | ❌ | ❌ | ❌ | ❌ |
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| Latency reporting and record offset compensation | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ |
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| Sample rate follows the session; resample when it can't | ✅ (switches device) | 🟡 resamples (input pitch bug fixed, #28) | 🟡 | 🟡 | 🟡 | 🟡 |
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| Avid HDX / HD Native DSP, Hybrid Engine DSP mode | ✅ | ❌ (out of reach: Avid hardware) | ❌ | ❌ | ❌ | ❌ |
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| Disk allocation / record to disk | ✅ | ❌ recording into RAM (PR #84) | ❌ | ❌ | ❌ | ❌ |
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## MIDI
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| Feature | Pro Tools | SoundCraft (all platforms) |
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|---|---|---|
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| MIDI input devices (keyboards, pads) | ✅ | ❌ no MIDI device layer at all (`setup.midi_input_devices` stores names) |
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| MIDI output to external gear | ✅ | ❌ |
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| MIDI Thru, input filter | ✅ | ❌ (stored flags only) |
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| MIDI Beat Clock out, MTC generate/chase | ✅ | ❌ |
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| MIDI learn / controller mapping | ✅ (via surfaces and plug-in maps) | ❌ |
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| Virtual MIDI keyboard | ✅ (MIDI Keyboard window) | 🟡 window exists, no live audition path |
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## Control surfaces
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| Feature | Pro Tools | SoundCraft |
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| EUCON (S1/S3/S4/S6, Dock, Control app) | ✅ | ❌ Avid-proprietary SDK; owner decision |
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| HUI | ✅ | ❌ |
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| Mackie Control Universal | ✅ (via HUI emulation and personalities) | ❌ |
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| Generic MIDI controller personalities | ✅ | ❌ |
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## Sync and video hardware
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| Feature | Pro Tools | SoundCraft |
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| LTC / MTC chase, 9-pin machine control | ✅ (Ultimate) | ❌ |
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| Word clock / video reference awareness | ✅ via interface | ❌ |
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| Video output to a second display or video card | ✅ | ❌ (video window only) |
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| Satellite linking of systems | ✅ | ❌ |
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## Performance
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| Feature | Pro Tools | SoundCraft | Evidence |
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|---|---|---|---|
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| Parallel mixing across cores | ✅ | ✅ | `soundcraft-mix` renders independent strips in parallel (rayon) |
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| Plugin delay compensation | ✅ | ✅ | |
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| Disk streaming of long sources | ✅ | ❌ | Whole files decoded into the `SourcePool` |
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| Track count (Ultimate: 2,048 voices) | ✅ | unmeasured | No benchmark exists; add `cargo xtask bench` |
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| Real-time audio thread discipline | ✅ | ✅ | No blocking/allocation in steady state, audio-thread-aware logger |
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| Freeze / commit to save CPU | ✅ | 🟡 | `track.commit` renders; `track.freeze` only sets a flag (no CPU saved) |
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| GPU-accelerated UI | — | ✅ (wgpu/glow via eframe) | llvmpipe X11 issue #107 |
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## Revision history
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| Date | Change | Summary |
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| 2026-10-10 | major | Created: audit of audio interface, MIDI, control-surface, sync and performance support against Pro Tools 2026.4.1 |
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