sorb's decision after the prototype: integrate DeepFilterNet3 as a LiveKit track
processor, off by default, assets fetched only when the user enables it, checkbox
plus slider, 35 percent default.
Opt-in is what makes the 23.3 MB affordable — only those who benefit pay for it.
Three of the source specification's assumptions did not survive measurement and are
recorded as rejected alternatives: the dry/wet mixer (the model limits attenuation
natively, and mixing raw signal back would return the keystrokes), the Rust/wasm
build (a maintained package makes it unnecessary), and loading assets from the
vendor CDN (every participant's IP to a third party at call start).
Mobile stays untested by choice; since the filter is opt-in it simply stays off on
weak devices, so that is a follow-up rather than a blocker.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
