Real-Time WhatsApp Web Voice Changer

I want to speak on WhatsApp Web calls while sounding completely different in real time. The tool you build (browser extension, virtual audio driver, lightweight desktop utility—whichever approach you prefer) has to inject male, female, and child voice effects with minimal latency so conversation flow feels natural.

Core scope
• Seamlessly hooks into WhatsApp Web audio so the person on the other end only hears the transformed voice.
• One-click on/off toggle and quick hotkeys to cycle through the three presets.
• Clean interface that shows current effect and audio level.
• Works on Windows and macOS in the latest Chrome-based browsers.

Acceptance criteria
1. Delay under 100 ms on a 50 Mbps connection.
2. Voice remains intelligible with no echo or robotic artifacts.
3. Installation guide and short video demo of the changer active on a live WhatsApp Web call.
4. Deliverable: source code (if custom), packaged installer/extension, and step-by-step setup instructions.

If an existing open-source library (e.g., Web Audio API, SoundTouch, Voicemod SDK) accelerates development, feel free to integrate it; just ensure licensing stays compliant. I’ll test on my end and release payment once all criteria are met.