Infinite Talk Multi-Person: Audio-to-Video Generation with Multi-Person Support

What makes Infinite Talk stand out

Infinite Talk is a high-fidelity audio-to-video system that turns speech into realistic talking videos with precise lip-sync, expressive motion, and stable identity. Built for long-form stability, Infinite Talk preserves facial structure, gaze, and head pose from a single image while adapting motion to the cadence of each track. For multi-speaker scenes, Infinite Talk coordinates dual audio sources without drifting or re-synthesis of the background. With controllable ordering and deterministic seeding, Infinite Talk maintains temporal coherence across takes and resolutions while remaining efficient for iterative workflows. In dubbing and avatar scenarios, Infinite Talk balances realism with structure preservation to produce believable, consistent results.

Key capabilities:

• Structure and identity preservation from a single portrait; Infinite Talk minimizes background shifts.
• Frame-accurate lip-sync across varied accents and pacing.
• Expressive micro-gestures, eye blinks, and natural head motion.
• Dual-audio orchestration with meanwhile, left_right, right_left.
• Reproducible runs via seed; quick variation by adjusting seed.
• 480p or 720p output for speed-quality balance, with Infinite Talk sustaining consistency across lengths.

Prompting guide for Infinite Talk

Provide left_audio, right_audio, and a high-quality image; then set a clear prompt describing emotion, pacing, and motion limits. Use order to schedule speakers and resolution for speed or detail. For repeatable takes, fix seed. Infinite Talk favors precise, scoped instructions that specify what to animate and what to keep static. When mixing voices, Infinite Talk aligns mouth shapes per stream while preserving identity and pose. For localized control, guide Infinite Talk with directives about eye contact, head turns, and blink intensity.

• Two-person dialogue: set order to left_right to sequence turns; prompt: preserve background, subtle nods, calm eye blinks. Infinite Talk keeps pose consistent while switching voices.
• Simultaneous panel: use order meanwhile for overlap; prompt: limited head sway, maintain eye contact with camera.
• Single-voice take: place the active track on left_audio, provide a short silent file on right_audio, set order to left_right; prompt minimal idle motion so Infinite Talk avoids unnecessary gestures.
• Dubbing: reuse the source portrait as image, replace speech with the target-language track; prompt: maintain identity, natural phoneme articulation; Infinite Talk adapts timing.
• Seeded alternates: lock seed for a master take, then vary it to explore motion nuance with Infinite Talk.

Pro tips:

• Trim leading and trailing silence; clean, steady audio improves lip precision with Infinite Talk.
• Use a face-centered, evenly lit portrait; avoid heavy occlusions or extreme angles.
• In prompt, state constraints clearly: keep background static, subtle head motion, natural blinks.
• Match clip lengths when using meanwhile to prevent desync.
• Choose 480p for rapid iteration; switch to 720p for delivery, preserving seed for consistency.