Koyal
Koyal is an AI-powered audio-to-video filmmaking platform that transforms audio content into cinematic videos with custom characters, consistent settings, and emotional storytelling in minutes.
https://beta.koyal.ai/?ref=producthunt
Product Information
Updated:Nov 18, 2025
What is Koyal
Founded in 2025 by siblings Mehul and Gauri Agarwal, graduates of MIT and Carnegie Mellon University, Koyal is a Silicon Valley-based startup that revolutionizes video content creation through AI technology. The platform evolved from their research published at NeurIPS 2024 and is backed by Y Combinator. Koyal enables creators to convert any audio content - including songs, podcasts, recordings, or audio clips - into fully produced videos complete with personalized avatars, scenery, costumes, and dynamic camera angles while maintaining creative control.
Key Features of Koyal
Koyal is an AI-powered platform that transforms audio content into cinematic videos by extracting emotions, context, and storytelling elements directly from music and voice. It uses advanced AI models including CHARCHA (their proprietary personalization engine) to generate custom characters, settings, and animations while maintaining consistency throughout the video, allowing creators to have creative control over personalized avatars, scenery, costumes, and dialogue tone without requiring complex technical skills.
Emotion-Based Video Generation: Automatically extracts emotional tone from audio input and converts it into appropriate cinematic scenes with matching visuals and camera angles
Character Consistency: Maintains visual coherence and stylistic identity of characters throughout the video using state-of-the-art AI technology
Creative Control Interface: Allows users to storyboard, reshoot, and refine scenes naturally without complex prompts or editing tools
Multilingual Support: Offers capabilities in multilingual script to audio to video conversion with dynamic lip-sync and movement
Use Cases of Koyal
Music Video Production: Musicians can transform their songs into professional music videos without expensive production costs
Podcast Visualization: Podcasters can convert their audio content into engaging visual content for platforms like YouTube
Educational Content: Educators can create visual learning materials from audio lectures or educational content
Marketing and Advertising: Brands can quickly generate promotional videos from scripts or audio content for social media and marketing campaigns
Pros
Significantly reduces production time and costs compared to traditional video production
No technical expertise required for video creation
Includes safety features like consent-based verification to prevent unauthorized use
Maintains consistent quality and character appearance throughout videos
Cons
Currently in beta phase with limited access
May have limitations in generating highly specific or complex scenes
Potential concerns about AI-generated content authenticity
How to Use Koyal
Upload Audio/Script: Upload your script or record your voiceover. Koyal analyzes the emotion, pacing, and intent behind every line.
Design Characters: Create AI characters or safely add yourself using CHARCHA (Character Captcha protocol) which requires consent verification through live physical actions like head turns.
Auto-Generate Scenes: Koyal automatically generates cinematic scenes with consistent characters, environments, and shot logic based on your audio/script.
Edit and Refine: Storyboard and edit visually by adjusting lighting, camera angles, or emotions using simple directions like 'make it more hopeful' or 'change the setting to night'.
Export Final Video: Export your finished film, ready to share across YouTube, social media platforms, or investor decks.
Koyal FAQs
Koyal is an AI-powered platform that transforms audio (scripts, voiceovers, songs, podcasts) into cinematic videos with custom characters, settings, and animations while maintaining emotional tone and consistency.
Koyal Video
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