# EvOo Voice — Interaction Model

## Gesamterfahrung (encounter)

A conversation with an Oo is a **shared encounter**, not a thread with a tiny avatar:

| Layer | Role |
|-------|------|
| **Oo Stage** | Primary — large `BotAvatar` / persona presence, runtime pose, awareness strip |
| **Transcript** | Secondary protocol — compact caption trail, scrollable record |
| **Sound** | Calm procedural cues wired to real events (work finished, voice phases, handoffs) |

Text mode (`OoStage` in Shell) and Voice mode (`VoiceStage` overlay) share the same metaphor: eyes/presence + space + sound. Brand lock (asymmetric Kulleraugen) is unchanged.

### Product model — conversation-centric (Grok-like)

**Oos (agents) exist**, but the product is organized around **conversations (Unterhaltungen)**, not “pick an agent row = the whole app”:

| Layer | What it is |
|-------|------------|
| **Team** | Roster of your Oos — who you can talk to |
| **1:1 Unterhaltung** | One Oo, one shared encounter (`OoStage`) |
| **Gruppenunterhaltung** | Multiple Oos (+ humans later) in one encounter (`OoGroupStage`) |
| **Projekte** | Group conversations organized in **Ordner** (`BotSection` folders in sidebar) |

| Mode | Shell route | Stage |
|------|-------------|-------|
| **Unterhaltung** (1:1) | `/app/:botId` | `OoStage` — one Oo hero |
| **Gruppenunterhaltung** | `/app/g/:groupId?s=live` | `OoGroupStage` — active-speaker hero + ensemble row; **Riffing** when peers spark (`docs/GROUP-CONVERSATIONS.md`) |
| **Project sessions** | `/app/g/:groupId` (timeline) | No stage — session list (`ProjectSessionTimeline`) |

Clicking an Oo in **Team** opens a **1:1 conversation**, not “the agent product”. Clicking a project opens a **group conversation** or its session timeline. **Gesamterfahrung** (stage + sound + transcript record) applies to both conversation types.

**Emergent ensemble:** *Das Ganze ist mehr als die Summe seiner Teile* — power from distinct specialists + chemistry in groups, not one mega-agent (`docs/PRODUCT.md`).

Voice is the **immersive primary mode** for 1:1 bot conversations. Text chat uses the same stage-first layout; the transcript stays readable but no longer carries identity chrome.

## Entry

| Surface | Action |
|---------|--------|
| Composer **Voice** pill | Opens Voice Stage when a provider is connected; otherwise opens Voice settings |
| Transcript “Speak this reply” | Reads one message aloud (text-first affordance, unchanged) |

The composer and stage Voice controls use `h-control-lg` in neutral tokens; when voice is ready an iridescent aurora rim (`VoiceAuroraRim`) runs along the bottom edge.

## Voice Stage

Full-screen dark layer with one glass panel (`VoiceStage`): the Oo, the live caption, and a control row. An iridescent aurora (`VoiceAurora`) rises from the panel's bottom edge. Its spectrum is the bot palette (`botColors` from `@rakazo/ui-tokens`) rotated so the active Oo's own color sits in the center.

### Persona & consciousness layer

Persona is **derived at runtime** from existing bot fields (`name`, `title`, `description`) — aligned with `templates/*` archetypes, not a separate marketing field.

| System | Path |
|--------|------|
| Archetype detection | `apps/web/src/lib/bot-persona.ts` |
| i18n status copy | `apps/web/src/lib/voice-persona-copy.ts` |
| Awareness strip | `VoiceAwarenessStrip` — subagent, handoff, delegation, peer reply |
| Visual identity | `BotAvatar` — persona shape + unified `EvooMascot` soul (eyes/mouth/hands) driven by voice phase |
| Voice delivery | `speaker.speak(..., { botId })` → server resolves per-bot `voiceId` |

Archetypes include: CTO executive, chief operator (Fixer), builder (Dr. Eggbot), curator (Webby), work/life inboxes, home steward, quant, engineer, **specialist** (narrow fallback — no Wunderwuzzi). See `docs/PRODUCT.md` and `docs/PERSONA-SELECTION.md`.

**Companion tone:** geek-peer (fachsimpeln when wanted) or quiet-doer (execute without condescension) — inferred per user, not one voice for everyone.

**Accessibility of ambition:** grandma-simple entry (Thermomix to hard math — no power-user gate); expert-grade ceiling per specialty. Same product, different crews; never a mediocre everything-bot.

Phase labels, idle prompts, and thinking lines are **character-specific** (DE/EN via Lingui). Collaboration narration uses persona-aware phrasing (“casting”, “routing”, “handing off”) instead of generic tool labels.

### States

| Phase | Visual | Audio |
|-------|--------|-------|
| **Listening** | Aurora rises and brightens with mic energy, breathing | Dictation active; silence endpoint sends |
| **Thinking** | Aurora settles low and drifts side to side | TTS idle; awaiting bot reply |
| **Speaking** | Full aurora bloom, conductor mascot pose | TTS playback; caption shown live |

Aurora height and opacity follow `dictation.energy` (0–1) while listening (`voiceAuroraBlobs` in `apps/web/src/lib/voice-aurora.ts`). The caption (`VoiceLiveText`) fades each new word in; words already on screen stay put while an utterance grows and the caption restarts for a new one. Mascot uses `EvooMascot` poses: idle / thinking / wave.

### Controls

The control row holds the persona phase label (live region), Transcript, Interrupt (mic), and Hang up (×).

| Input | Action |
|-------|--------|
| **Space** | Interrupt (stop TTS or cancel dictation, resume listening) |
| **Esc** | Hang up — exit Voice Stage |
| **T** | Toggle transcript drawer (secondary record) |

### Transcript

Collapsible panel shows the last messages from the thread plus the live utterance. Chat scroll behind the stage is dimmed but unchanged; voice does not replace thread history in the database.

## Accessibility

- `prefers-reduced-motion: reduce` disables aurora breathing/drift, the panel entrance, and word fade-in; the static aurora remains.
- Dialog semantics: `role="dialog"`, `aria-modal`, labelled bot name.
- Hang up exposes `aria-label="Hang up"`.
- Shortcuts are exposed through `aria-keyshortcuts` on the matching controls instead of on-screen hint text.

## Architecture

```
Shell (composer Voice)
  └─ CallView (orchestration: dictation + speaker + thread send)
       └─ VoiceStage (panel, controls, transcript drawer)
            ├─ VoiceAurora (bottom-edge glow, phase + energy)
            └─ VoiceLiveText (word-by-word caption)
```

Shared singletons: `dictation` (`apps/web/src/lib/dictation.ts`), `speaker` (`apps/web/src/lib/tts.ts`).

## Design tokens

Voice chrome uses `text-ui-*`, `size-icon-*`, and `h-control-*` / `size-control-lg` — no sub-13px labels on primary controls. See `DESIGN.md` for the full scale.

## Sound language

Procedural Web Audio (`oo-sound.ts`, `oo-vocals.ts`, `oo-audio-bus.ts`) — no sample packs. Full motion/SFX spec: `packages/ui-web/MOTION-EVOO-CHARACTER.md`.

| Cue | Trigger |
|-----|---------|
| `app-start` | Cold open — mint→violet shimmer |
| `interact` | Primary nav / roster taps |
| `success-resolve` | Run finished — mint→gold |
| `need-you` | `waiting_input` / takeover — with `ouh` vocal |
| `work-complete` | Alias of `success-resolve` |
| `listening-start` / `listening-stop` | Voice phase |
| `speaking-start` / `speaking-done` | TTS lifecycle |
| `attention` | Run error in composer |
| `message-sent` | Composer send |
| `handoff` / `group-spark` | Thread collaboration |

Reaction vocals (`mh` / `Mhh` nod, `ouh`, `hm` on success): state-change only, 8–12 s cooldown, **−18…−12 LUFS** via shared bus, **duck under TTS/PTT**.

Toggle: **Settings → Voice → Sound feedback**. `prefers-reduced-motion: reduce` → no vocals/SFX loops; character visual state only.

## Current slice (this PR)

**Stage + sound + onboarding reassurance** — shared encounter without requiring the user to sit in front of the screen. Voice Stage is opt-in per session; text mode uses the same Oo Stage metaphor.

## Ambient & video presence (future roadmap — do not ship without consent UX)

Ingo capability vision — **document only** until explicit opt-in flows exist. Not part of the current Gesamterfahrung slice.

| Idea | Product rule |
|------|--------------|
| **Video calls optional** | Only when the user wants; a simpler audio-only path stays first-class for users who prefer it |
| **"It's just an Oo"** | User does not need to sit in front constantly — practical help can be ambient (notifications, background runs, crew handoffs) |
| **Ambient presence** | An Oo can carry a lot of practical presence without demanding attention — aligned with quiet-doer mode |
| **Long-term metaphors (opt-in only)** | Could *eventually* stand in for an alarm system or a home camera — **strictly user-opt-in**, never default, never surveillance-as-a-feature |

### Hard gates (aligned with `docs/OO-RELATIONSHIP.md`)

- **No always-on camera or mic** without a dedicated, revocable consent UX — not buried in ToS
- **Never creepy** — warm competence, not uncanny stalking; earned context only
- **Not yes-men** — push back on unsafe or over-broad monitoring requests
- **No Wunderwuzzi** — home/security lanes are specialist Oos with narrow scope, not one omniscient watcher

When video or ambient sensing ships: same encounter grammar (Stage + sound + transcript), plus a visible **presence mode** indicator the user controls.

## Out of scope (later)

- Dedicated `/voice` route
- Hold-to-talk in composer
- WebGL / real audio analyser on TTS output
- Always-on video / ambient camera without explicit consent UX (see roadmap above)