Route browser audio to HDMI + 3.5mm at once. With spatial effects, EQ per output, and 8D audio that actually sounds natural.
Open the popup and your audio instantly follows your setup — no drivers, no system settings.
Audio is duplicated at the Web Audio graph level and sent to each output with a separate AudioContext — not mixed back together.
3-band parametric EQ on every output independently. Boost bass for the TV, cut highs for the headphones.
Four overlapping LFOs at prime-ratio frequencies plus a slow drift wave — the orbit never repeats the same pattern twice.
EQ and volume changes push live to the audio graph via setTargetAtTime — no dropout, no re-routing.
Send audio to any number of outputs at once — HDMI, 3.5mm, Bluetooth, USB. No limit.
CoreBass, Mid, Treble controls with ±15dB range on every output independently. Real-time, no dropout.
MixerConcert Hall, Stadium, Cave, Night Club, Vaporwave, 8D Audio, Telephone and more — per output.
EffectsFour prime-ratio LFOs plus a slow drift oscillator. It sounds like a room, not a metronome.
EffectsFixed Chrome autoplay suspension bug — audio activates on first page click, not on system volume change.
FixedDetects when "default" resolves to the same physical sink as a named device and skips the duplicate.
SmartMove the sliders to see the frequency curve update in real-time.
Built from synthetic impulse responses and multi-oscillator DSP chains — all inside the browser.
No Chrome Web Store, no waiting for review. Load it directly from the source.
Clone the repo or download the ZIP and unzip it to a permanent folder on your Chromebook.
git clone https://github.com/Stevegates24/Steves-Audio-Mixer
Open Chrome and navigate to the extensions page. Toggle Developer mode in the top-right corner.
chrome://extensions
Click "Load unpacked" and select the extension folder. The icon appears in your toolbar immediately.
Open YouTube or Spotify Web. Click the extension, select your outputs, toggle On, and hit Apply.