docs(demo): recording setup — OBS, one-display Cortex overlay, system-audio gotcha - #304
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…-audio gotcha
The script assumed a second monitor ("leave Cortex on a 2nd screen all demo").
The machine has one display (3840x2160, main). Cortex is now pinned as an OBS
corner overlay instead, which gives the same persistent visual anchor without
extra hardware.
Adds a § Recording setup section:
- OBS, not Loom: Loom's free tier caps a video at 5 min, this run is 15-25.
OBS also keeps footage local, which fits a local-first product.
- Verified this OBS build ships a native Desktop Audio Capture source. Without
it macOS records no system audio and beats 4 (Read Aloud), 20 (voice call)
and the Spotify finale come out SILENT.
- Keep the C200 as the webcam: beat 21 needs the iPhone in hand for Touch ID,
so a Continuity Camera feed would drop out at that beat.
- Do not change the system audio input device — the C200 is the wake-word mic
and swapping it risks beat 1.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Prep for the demo shoot this week.
The script assumed hardware that isn't there
Beat 13 and the pre-record checklist both said "leave Cortex on a 2nd screen all demo."
system_profilershows one display (3840×2160, Main). Cortex is now pinned as an OBS corner overlay — same persistent visual anchor, one monitor, nothing extra to buy.Recording tool: OBS, not Loom
The gotcha that would have ruined the take
macOS does not capture system audio by default. I verified this OBS build (32.2.1) ships a native Desktop Audio Capture source — without it, beat 4 (Read Aloud), beat 20 (voice call) and the Spotify finale all record silent. Now an explicit step, with a level-check before rolling.
Two hardware calls, with reasons
Docs only — no code paths touched.
🤖 Generated with Claude Code