Voice modulation invites a doll to respond in ways that feel authentic and emotionally resonant, but it must be designed with care. Personalization begins with a flexible voice framework that supports varied timbre, pace, intonation, and cadence, allowing users to tailor the doll’s speech to their preferences. It’s important to offer a spectrum of voice profiles that span different accents, languages, and cultural backgrounds, while avoiding stereotypes and ensuring inclusivity. Contextual awareness enhances natural interaction: the system can adjust volume, formality, and phrasing based on the user’s environment and mood, all with privacy-preserving on-device processing whenever possible. Users should control the extent of personalization, including the ability to reset to default voice settings or erase voice data. Ethical considerations center on consent, avoiding manipulation, and ensuring that the voice does not imitate real individuals without explicit authorization. Regular updates can refine pronunciation, emotional expressiveness, and alignment with safety guidelines. A well-designed voice module can enrich interaction without compromising consent, privacy, or security.