Goal
Add a Broadcast Voice control (Off / Low / Medium / High) that makes the voice sound clearer and more "present/broadcast" — a gentle presence lift coupled with an automatic de-esser — without changing the identity of the original voice.
Architecture
Two new allocation-free DSP stages added to the existing VoiceChain: a wide-Q presence peaking bell (Biquad.setPeaking) and a subtractive split-band DeEsser (Dynamics.swift). They are driven by a single ClarityLevel enum carried on VoiceChainSettings and injected by AudioModel on top of the active preset (independent of the noise preset and of Voice Polish). The presence boost is followed by the de-esser so added "air" can never become harsh sibilance; the existing limiter (already last in the chain) catches any peaks. When clarity == .off, presence is bypass and the de-esser is a perfect identity, so every existing preset behaves byte-for-byte as before.
Plan
docs/plans/2026-06-15-broadcast-voice-clarity.md
Goal
Add a Broadcast Voice control (Off / Low / Medium / High) that makes the voice sound clearer and more "present/broadcast" — a gentle presence lift coupled with an automatic de-esser — without changing the identity of the original voice.
Architecture
Two new allocation-free DSP stages added to the existing
VoiceChain: a wide-Q presence peaking bell (Biquad.setPeaking) and a subtractive split-bandDeEsser(Dynamics.swift). They are driven by a singleClarityLevelenum carried onVoiceChainSettingsand injected byAudioModelon top of the active preset (independent of the noise preset and of Voice Polish). The presence boost is followed by the de-esser so added "air" can never become harsh sibilance; the existing limiter (already last in the chain) catches any peaks. Whenclarity == .off, presence is bypass and the de-esser is a perfect identity, so every existing preset behaves byte-for-byte as before.Plan
docs/plans/2026-06-15-broadcast-voice-clarity.md