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---
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title: Avatars & Companions
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aliases: [Companions, Netra the Owl, Voice Personas]
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tags: [3netra/wiki, avatars, companions, tts]
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product: 3netra Meta Android App
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source_repository: 3Netra-ai/3n_meta_android
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source_ref: origin/prod
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source_revision: b48aada8fd5427b5db0c02945569963c4ae543c8
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last_verified: 2026-08-06
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up: "[[Home]]"
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---
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# Avatars & Companions
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3netra's UI exposes four companion cards. `companion_id` and nickname are saved in preferences; the selection does not currently alter prompts, model routing, or a voice tag.
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## Companion Roster (CompanionSelectScreen)
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| id | Avatar | Name | Personality | Accent color | Voice sample |
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|---|---|---|---|---|---|
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| `owl` (default) | 🦉 | **Netra the Owl** | Wise and warm | SkyCyan | "Hi! I'm Netra. I'm watching over you and I'll describe every wonderful thing I see!" |
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| `cosmo` | 🤖 | **Cosmo the Bot** | Upbeat and energetic | LavenderPurple | "Cosmo here! Ready to zoom through your classroom at the speed of light? Let's go!" |
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| `sage` | 🌿 | **Sage the Panda** | Calm and peaceful | FriendlyGreen | "Hello, friend. Sage here. Let's explore together, one gentle step at a time." |
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| `ripple` | 🐬 | **Ripple** | Playful and friendly | MintTeal | "Wheee! It's Ripple! I see SO many cool things around you. Want to hear all about them?" |
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Each card offers **"Hear my voice 🔊"** preview (speaks the sample through the standard TTS path). Selection screen also captures the student's nickname ("What should Netra call you?").
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**Netra the Owl** is the brand mascot and appears across: onboarding welcome ("Hi! I'm Netra."), Home hero card (🦉), grade-selection quote bubbles ("I'll talk just like your class does!"), permission screen, and pairing success ("Amazing! I can see through your glasses now!").
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## Voice Persona Machinery
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| Component | Role |
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|---|---|
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| `ChildVoicePersonaManager` | Active Scene screen helper: Android TTS with legacy K–6 vocabulary replacement and pitch/rate controls |
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| `StudentOnboardingWizard` | Unwired calibration screen using the same child-voice helper |
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| Companion selection | Local `companion_id`/nickname presentation state; no verified TTS or backend mapping |
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| `student_settings` fields | Client payload fields only; no committed DDL proves defaults or persistence |
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| Speaking speed | Settings writes `tts_speed`; `BluetoothService.speak()` reads it. Scene screen uses its separate child-voice helper |
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## TTS Pipeline (all spoken output)
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```mermaid
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flowchart LR
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TXT[Screen/chat text] --> PATH{Call site}
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PATH -->|Scene screen| ATTS[ChildVoicePersonaManager / Android TTS]
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PATH -->|BluetoothService| LANG{settings language}
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LANG -->|conditional| SAR[Sarvam client]
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LANG -->|otherwise| BTTS[Android TTS]
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```
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> [!warning] Implementation mismatch
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> The reviewed source still calls the active helper `ChildVoicePersonaManager` and contains child/K–6 filtering. This is not an implementation of the higher-education voice policy documented elsewhere; it must be changed in source, not inferred from companion copy.
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---
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> [!tip] Navigation
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> ⬅️ [[04-User-Journeys|User Journeys]] · 🏠 [[Home]] · ➡️ [[06-Feature-Matrix|Feature Matrix]]