NextSona - Pitch Shifter, EQ, AI Vocal & Video Sync

Adjust browser audio with pitch, EQ, AI vocal modes, recording, remote control, and video synchronization.

Make browser audio fit the way you listen, practice, sing, and watch. NextSona is a real-time audio control extension for compatible music and video tabs. Adjust the sound directly in your browser with practical tools designed for everyday listening and karaoke. FEATURES • Pitch Shifter Change the pitch of browser audio without changing the original media. • AI Vocal Use Karaoke mode to reduce vocals, or Acapella mode to isolate vocals. Results may vary depending on the song, source quality, and device performance. • Equalizer and Audio Effects Fine-tune your sound with EQ, volume, balance, reverb, normalization, and dynamics controls. • Video Synchronization Adjust video delay, zoom, rotation, and position to match your audio setup. • Local Recording Record processed audio locally, then play back or download your recordings from the extension. • Remote Control Control an active NextSona session from another device using the optional Remote feature. Remote sends control values only; it does not transmit the audio stream. • Hardware-Aware Processing NextSona uses available browser acceleration when supported and is designed to remain lightweight for real-time use. PRIVACY Audio processing runs locally in the browser. Audio is not uploaded to NextFeeder Labs for processing. Recording starts only after you choose to record and recordings remain in local extension storage. NextSona does not modify the original media source. It processes the selected tab audio for your local listening experience. Performance and AI Vocal separation quality can vary between devices, browsers, and source audio. NextSona does not guarantee perfect vocal removal for every song.