# SuperchargeAudio 1.0.0 — SuperchargeAudio — Volume, EQ, and Spatial Controls for Every Tab

> SuperchargeAudio brings granular audio control to every browser tab. Boost volume beyond the browser's 100% limit, shape sound with a 10-band equalizer, and widen or narrow the stereo field — all without leaving the browser. Smart mute keeps background tabs silent while you focus on the active one, and per-site memory means your preferred settings apply automatically every time you return to a site. For DRM-protected streaming sites where in-page audio processing is not permitted, an optional tab-audio-capture mode applies the same controls to the tab's output.


- Canonical: https://www.superchargebrowser.com/changelog/audio/1.0.0/
- Extension: audio
- Version: 1.0.0
- Released: 2026-05-28
- Chrome Web Store: https://chromewebstore.google.com/detail/volume-booster-audio-equa/cbjglaijgolamegjnaiabgdojmghalbe
- Microsoft Edge Add-ons: https://microsoftedge.microsoft.com/addons/detail/superchargeaudio-volume-/iknpdbfmeiefmfofkfkbcakpnmlbncia
- Source: SuperchargeBrowser (https://www.superchargebrowser.com)

## Highlights

- Volume boost up to 600% — well beyond the browser's built-in limit
- 10-band equalizer, ±12 dB per band, with named presets and a custom mode
- Bass boost, mono downmix, stereo width, and 8D rotating-pan effect
- Headphone crossfeed for more natural headphone listening
- Smart mute — auto-mutes background audible tabs to keep audio focused
- Per-site memory — settings persist per website and auto-apply on return
- Audible-tabs list — see and control every tab currently playing audio
- Works on DRM-protected streaming sites via optional tab-audio-capture mode
- 100% local, no account, no telemetry

## Volume and Equalizer

The browser's built-in volume tops out at 100%. SuperchargeAudio extends that
range to **600%** — useful when a video is recorded quietly, a podcast is mixed
low, or a call is hard to follow at max system volume.

The **10-band equalizer** spans 32 Hz to 16 kHz, with ±12 dB of adjustment per
band. Named presets cover common listening scenarios — Bass Boost, Vocal/Voice,
Treble, Loudness, Rock, Pop, Electronic, Acoustic, and Small Speakers — or set
your own curve and save it per site.

**Bass boost** adds a dedicated low-end lift on top of the EQ, independently
adjustable.

## Spatial and Headphone Controls

Four controls shape how audio sits in space:

- **Mono downmix** collapses stereo to center — useful when one channel is
  missing or when you need a clear, undistorted mono reference.
- **Stereo width** spans from the mono mix up to an ultra-wide field. Useful
  for widening cramped-sounding stereo or tightening content that feels too
  spread.
- **8D rotating pan** applies a slow rotating-pan effect — the kind used in
  immersive listening edits.
- **Headphone crossfeed** blends a small amount of each channel into the other.
  Headphones place audio hard inside your head; crossfeed moves it slightly
  forward, closer to how speakers in a room sound.

## Smart Mute and Per-Site Memory

**Smart mute** watches for background tabs playing audio and mutes them
automatically so only the active tab is heard. A silent mode extends this
further, muting all tabs including the active one — useful when you need
complete quiet without closing everything.

**Per-site memory** stores your volume level, EQ curve, and channel settings
for each website. Return to a site and your settings apply without touching
anything.

The **audible-tabs list** in the popup shows every tab currently playing audio.
Click any entry to switch to it or mute it directly.

## Protected and DRM-Restricted Sites

On most websites, SuperchargeAudio works by inserting a gain node directly into
the page's Web Audio graph — no capture, no extra permissions.

Some streaming services use DRM or strict content security policies that
prevent in-page audio processing. For these sites, an optional
**tab-audio-capture mode** routes the tab's audio output through the extension's
processing chain instead. The audio controls work the same way; the content
itself is untouched. This mode does not remove or modify content access in any
way — it only adjusts what you hear.

Tab-audio-capture requires granting audio capture permission when first enabled.
It is off by default and must be opted into per-session.

## Privacy

All audio processing runs locally in your browser. No audio data leaves your
device, no account is required, and no usage telemetry is collected.

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Canonical URL: https://www.superchargebrowser.com/changelog/audio/1.0.0/