SoundSphere

Reliable per-tab volume boost and 10-band EQ for browser audio.

SoundSphere v1.3 Short Description Boost tab volume up to 800%, tune sound with a 10-band EQ, and manage noisy tabs from one clean browser popup. Detailed Description SoundSphere gives you practical control over browser audio. Boost quiet videos, balance music, make voices clearer, reduce sudden loud tabs, and see which tabs are currently playing sound. SoundSphere works per tab, so you can adjust one site without changing your entire system volume. Key Features Boost supported tab audio up to 800%. Fine-tune sound with a 10-band equalizer. Use quick modes for Default, Voice, and Bass. Choose EQ presets including Flat, Speech, Bass Boost, Treble Boost, and V-Shape. Keep audio processing active while switching tabs or windows. See how many tabs are playing audio with the optional toolbar badge. View audible tabs with favicons and titles in the popup. Click any audible tab to jump to it. Mute or control noisy tabs quickly. Save per-tab or global volume preferences. How It Works SoundSphere watches for tabs that are playing audio and gives you a focused control panel from the extension popup. From the popup, you can: adjust the current tab's volume choose an EQ preset fine-tune all 10 EQ bands switch between Default, Voice, and Bass modes view and focus tabs that are currently making sound open settings for badge and persistence options On Chrome, SoundSphere uses Manifest V3 tab audio capture and an offscreen audio engine. This keeps advanced processing stable without requiring a visible helper tab. If a site or protected playback path blocks advanced processing, SoundSphere falls back to basic volume control where possible. Permissions Explained SoundSphere requests only the permissions needed for browser audio control. activeTab: lets SoundSphere work with the tab you explicitly choose by opening the popup. tabCapture: captures the active tab's audio so volume boost and EQ can be applied locally. offscreen: keeps the audio processor running reliably under Manifest V3. scripting: injects the local fallback controller only after user interaction when needed. tabs: detects audible tabs and shows their title and favicon in the popup. storage: saves your settings, EQ choices, and volume preferences. SoundSphere 1.3 for Chrome does not request broad host permissions. Privacy SoundSphere processes audio locally in your browser. SoundSphere does not: collect browsing history collect page content record audio sell data use analytics track users send audio or website data to external servers load remote scripts or remote fonts Safety Note High volume boosts can distort audio and may damage hearing or speakers. Start low, increase gradually, and use high boost levels carefully, especially with headphones.