Roar, kid! — Personal audio EQ for YouTube, Netflix & Prime Video

Roar, kid! shapes the sound of YouTube, Netflix, and Prime Video to your personal hearing profile. Instead of a generic equalizer or volume booster, it reads your audiogram — the chart from a hearing test — and applies per-ear, per-frequency compression: quiet sounds get more boost, loud sounds get less, with an always-on output limiter. It is a listening-comfort and accessibility tool, not a medical device. Who it helps: • Mild to moderate hearing loss in one or both ears • Speech that sounds muffled or unclear in videos, series, and films • High-frequency hearing loss, where turning the volume up doesn't make words clearer How it works: • Plot your hearing thresholds on an interactive audiogram drawn to clinical conventions (red O for the right ear, blue X for the left) • Or import them from a photo of your hearing test report — fully on-device with Chrome's built-in AI where supported (no key, the photo never leaves your computer; best for reports with a printed threshold table), or with your own AI provider API key. Every imported value is shown for review before it is applied, and every point stays editable • 8 frequency bands (250 Hz–8 kHz), the standard range of diagnostic audiometry • Independent left/right processing, so each ear gets the boost it needs • Choose a listening target: Comfort (gentle default), Adult, or Child — the Child target stays locked until an audiologist's guidance is confirmed, and lowers the output ceiling while active • Optional loudness calibration (options page) anchors the level readout in the popup; until you calibrate, levels are shown as relative only Private by design: open source, no server, no analytics, no data collection. Your hearing data never leaves your browser. Roar, kid! is a listening supplement for accessibility — it is not a medical device, provides no diagnosis, and is not a replacement for hearing aids or professional audiological care, especially for children. Free and open source: github.com/unfairlaw/roar-kid — if it helps someone hear better, you can support development at buymeacoffee.com/guilherme.burzynski