Sander de WijsandClaude Opus 5.5
a63b23adf7
setup.playback_engine and setup.hardware stored device and buffer_size on the session and reported 1024 when nothing was set. Playback never read those values, so the open device stayed at its old buffer. In the app the commands now reopen the device through ui.audio_device and return the name, buffer and sample rate actually in use, while delay compensation still goes through the engine command. Headless keeps the stored request, returns applied: false, and leaves buffer_size null until one is set. A buffer is any integer from 16 to 8192 and is not rounded to a power of two; values outside that range error. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
6.6 KiB
SoundCraft roadmap: milestones and what's next
Last reviewed: 2026-10-25 · Last updated: 2026-10-25 · Change: trivial (
setup.playback_engineapplies the device buffer in the desktop app) · Target: Avid Pro Tools Ultimate 2026.4.1
Forward-looking plan. Status and numbers: ../ROADMAP.md and
target-app-parity.md; the ranked work list: gaps.md.
Hours are Opus 5.5 agent-hours.
Current focus
- Merge or close the open bug-fix PRs (#123–#134, #146, #148, #75) and fix the rest of the correctness backlog (G-04). ≈ 15–25 h.
- Audio interface basics (G-01): device selection, buffer size, duplex stream, ASIO. ≈ 25–40 h.
- MIDI devices (G-02): input to armed tracks and instruments, output, thru, clock. ≈ 20–35 h.
- macOS plugin hosting (G-05): library-validation entitlement now (#153), then AU editors. ≈ 15–25 h.
- A PR CI that runs
cargo xtask cion Linux, macOS and Windows (G-14). ≈ 5–10 h.
Alpha gate
The core workflows a Pro Tools professional does every day, checked end to end on macOS (the
main platform). Any no keeps SoundCraft pre-alpha, and those rows are the alpha checklist
(craftrules standards/progress-docs.md, Stages).
| Workflow | Works end to end? | Evidence | Hours to pass |
|---|---|---|---|
| Record audio from a chosen interface at a chosen buffer size, monitor, punch, keep the takes | no | Device, rate and buffer are chosen in the Playback Engine window and, in the desktop app, by setup.playback_engine (headless returns applied: false). The mix still runs in fixed 512-sample blocks. Separate input and output streams. Takes held in RAM until stop (PR #84). |
35–55 |
| Record MIDI from a controller and play it back through an instrument | no | Playback of drawn and imported MIDI works. No MIDI device layer at all, so nothing can be recorded and instruments can't be played live (G-02). | 20–35 |
| Edit: select, trim, fade, comp playlists, Slip/Shuffle/Grid | yes (rough) | Every Edit menu command; property-tested with undo; open bugs #3, #5, #140 don't block the workflow | — |
| Mix with built-in and third-party plugins, sends, busses, automation | partial (passes on CLAP/AU) | 27 built-in processors; CLAP and AU host on the signed macOS build, but its missing entitlement blocks third-party VST3 (#153). No AU plugin windows yet; VST3 windows on macOS only | 1–2 (entitlement) |
| Bounce mix and stems; save and reopen the session | yes (rough) | WAV/BWF/AIFF/FLAC bounce, stems, .scraft save/reopen with plugin state; bugs #59, #103 in bus bounce and aux latency (PRs open) |
— |
| Exchange a session with Pro Tools or a picture editor | no | No .ptx, AAF or OMF import or export (#40, G-03) |
50–90 |
Result: pre-alpha. Three workflows fail. Passing them is ~110–180 h, about 70 % of it parallelizable (interfaces, MIDI and AAF are independent crates).
Milestones
Status: ✅ done · 🟡 in progress · ⬜ not started.
| # | Milestone | Status | Remaining (h) |
|---|---|---|---|
| M0–M4 | Workspace, gates, model, I/O, DSP, mix engine, command engine, Edit/Mix UI, playback, metering, plugins, bounce | ✅ | — |
| M5 | Editing depth (tools, modes, playlists, fades, comping, clip groups) | ✅ (bugs open, G-04) | in G-04 |
| M6 | Recording, punch, loop record, monitoring | 🟡 first cut; device choice and record-to-disk missing | 40–60 |
| M7 | MIDI and notation editing | 🟡 | 50–80 |
| M8 | CLI, control channel, MCP, agent acceptance test | ✅ | 3 |
| M9 | AudioSuite breadth ✅, Elastic Audio 🟡, Beat Detective 🟡 | 🟡 | 40–60 |
| M10 | Public releases on all platforms | ✅ v0.3.0 (2026-10-08) and v0.4.0 (2026-10-10) released for every platform | — |
| M11 | Third-party plugin hosting (CLAP, VST3, AU), video, surround | 🟡 mostly done | 40–60 |
| M12 | Hardware: audio interfaces, MIDI devices, sync, control surfaces | ⬜ | 110–180 |
| M13 | Interchange: AAF/OMF import/export, disk streaming, record to disk | ⬜ | 65–115 |
| M14 | Fidelity harness against Pro Tools (null tests, plugin responses) | ⬜ | 20–30 |
| M15 | Localization: catalog, fonts/RTL, the 8 Pro Tools languages first | ⬜ (PRs #141, #143 open) | 70–110 |
| M16 | Built-in plugin depth, sidechain, ARA | ⬜ | 110–170 |
| M17 | Immersive delivery (ADM BWF, object renderer, binaural) and video depth | ⬜ | 80–130 |
M8 follow-up (2026-10-14): MCP batches above 1000 calls are rejected before execution (#460). The limit is advertised in the tool schema and description; stage and readiness estimates are unchanged.
To beta (~350–570 h, about 60–70 % parallelizable)
Beta needs ~75 % ready for real work and no blocking gap in session interchange.
| Step | Gaps | Est. (h) |
|---|---|---|
| Correctness backlog and a PR CI | G-04, G-14 | 40–65 |
| Audio interfaces, MIDI devices, sync | G-01, G-02, G-11 | 60–100 |
| AAF/OMF interchange, disk streaming, record to disk | G-03, G-06 | 65–115 |
| Plugin hosting completeness on every OS, sidechain | G-05, G-13 | 35–60 |
| Fidelity harness and the fixes it finds | G-07 | 40–60 |
| Built-in plugin essentials (EQ/dynamics/reverb/delay depth) | G-08 (half) | 40–60 |
| UI feel pass: shortcuts, plugin windows, meters | G-19 (half) | 30–50 |
| Localization of the 8 Pro Tools languages (catalog, CJK fonts) | G-09 (part) | 40–60 |
Needs a human: hardware for G-01/G-02/G-10/G-11, native-speaker review, and owner decisions on
AAX, .ptx and Avid cloud features.
After beta (to full parity, a further ~600–900 h)
Control surfaces (G-10), immersive delivery (G-12), the rest of the built-in plugin catalogue (G-08), Elastic Audio depth (G-15), session templates and browser (G-16), video depth (G-17), speech-to-text (G-18), notation and instrument depth (G-20), compressed export (G-21), and the remaining languages.
There is no cargo xtask scorecard in this repo; the measured number is cargo xtask parity
(parity-checklist.md).
Revision history
| Date | Change | Summary |
|---|---|---|
| 2026-10-25 | trivial | Record-workflow evidence: setup.playback_engine applies the device and buffer in the desktop app; headless returns applied: false |
| 2026-10-24 | trivial | 27 built-in processors, as the plugin registry holds; the sampler (#108) is no longer listed under plugin essentials |
| 2026-10-14 | trivial | M8: reject oversized MCP batches before execution (#460) |
| 2026-10-10 | minor | Added the alpha gate (3 of 6 core workflows fail → pre-alpha) |
| 2026-10-10 | major | Created from ROADMAP.md's milestones and alpha list; added M12–M17 and the beta plan with estimates |