Audio Splitter routes your browser's audio to multiple output devices at the same time — Bluetooth headphones, wired earbuds, speakers, TVs, hearing aids, all playing simultaneously from a single tab. Here's every useful thing you can do with it.
Watch any streaming site and send audio to your TV speakers AND your partner's headphones at the same time. Same tab, different volumes, zero compromise.
Everyone connects their own Bluetooth headphones to one laptop. Play the same music — each person controls their own volume. The ultimate party trick.
Two people, one laptop — each watching a completely different movie. Route Movie A to headphones, Movie B to Chromecast or Apple TV. No second device needed.
Open the same movie in two tabs — one in English, one in Japanese. Route each tab to different headphones. Same scene, each person hears their own language.
Replace a $200+ hardware monitor controller. A/B between studio monitors and headphones, apply per-output EQ, route bass to a subwoofer, with per-device delay compensation.
Parents and kids share the same screen — each wears their own Bluetooth headphones. No splitter cables, no fighting over earbuds.
Wired earbuds for the full mix, Bluetooth over-ears for pure bass — simultaneously. The over-ears become a personal subwoofer. Confirmed working: Beats Solo 4 + AKG EO-IG955.
Route audio to your Bluetooth hearing aid AND internal speaker simultaneously. Also works with bone conduction headphones paired with earbuds.
Route meeting audio to your headphones AND a Bluetooth conference room speaker simultaneously. Use the browser version of your meeting app.
Place Bluetooth speakers in multiple rooms. Play YouTube, Spotify, or Netflix audio everywhere at once — from a single browser tab.
Connect multiple speakers around your venue. One laptop, many speakers. Synchronized sound without expensive PA systems.
Everyone gets their own headphones at their own volume. No "turn it up" vs "it's too loud" arguments during movie night.
Keep a baby monitor tab in one earbud while YouTube plays on your speaker. One ear on the baby, the other on your content.
Route bass to a subwoofer, vocals to studio monitors, and instruments to headphones simultaneously. Mix referencing across multiple playback systems.
Run a class with shared audio. Each participant uses their own Bluetooth earbuds — everyone hears the music without a noisy speaker system.
Two people, two pairs of headphones, one laptop. Share a podcast, song, or video — each at their own volume. No more passing an earbud.
A group of students sharing one laptop at the library — each wearing their own Bluetooth headphones. Watch a lecture in complete silence.
The most popular use case — here's the exact setup:
💡 Tip: Each person gets their own volume slider in the extension. Bluetooth 5.0+ headphones work best — most laptops handle 2–3 simultaneous A2DP streams. For larger groups, use a BT 5.0+ USB dongle (~$10–15).
Two people sharing one laptop, each watching a completely different movie at the same time:
💡 Tip: Use Tab casting (click the ⋮ menu in Chrome → Cast → Cast tab) to send Movie B to your Chromecast or Apple TV. Audio Splitter handles the audio routing; Chrome handles the video casting.
Audio Splitter Max works as a software monitor controller — replacing hardware units like the Mackie Big Knob ($199) or PreSonus Monitor Station ($299) for browser-based listening sessions:
For browser-based reference listening (YouTube, SoundCloud, Spotify Web), it covers the essentials at a fraction of hardware cost ($19.99 one-time vs $200–500 hardware).
Chrome restricts access to your audio output devices for privacy. The first time you use Audio Splitter, click ➕ Add Device — this opens a setup page that briefly requests microphone permission to unlock device discovery. You only need to do this once. After that, your devices are saved and will appear automatically.
Make sure at least one device is toggled ON (the pill switch should be cyan) and the volume slider is not at 0%. If you still hear nothing, click 🔄 Refresh to re-scan your devices, then try Start Capture again.
Also check: if you have a Volume Booster or Volume Master extension installed, disable it — those extensions intercept the tab's audio stream and prevent Audio Splitter from capturing it.
Bluetooth audio has inherent latency (typically 100–300ms). Use the ⏱ Delay slider on your wired/built-in speaker to add a matching delay so both outputs sync up. Start at ~100–200ms and adjust by ear. Audio Splitter Max also includes Auto-Sync that detects device latency automatically.
Yes, but older laptops with Bluetooth 4.0/4.2 may struggle with simultaneous streams. A Bluetooth 5.0+ USB dongle (~$10–20) fixes this. Works on Mac and Windows. On Mac, hold Shift + Option and click the Bluetooth menu bar icon to disable the built-in controller and use the dongle instead.
Yes — if you use the browser version. Open your meeting at app.zoom.us, meet.google.com, or teams.microsoft.com. The extension captures all audio in the tab, including WebRTC call audio. The Zoom/Teams desktop app is not a browser tab and cannot be captured.
Not within a single Chrome instance — Chrome's tabCapture API only allows capturing one tab at a time per extension. However, you can use two Chrome instances (Chrome + Chrome Canary, or two Chrome profiles) — each runs its own independent Audio Splitter with its own capture. Route each instance to different devices.
Yes — in Audio Splitter Max (desktop app). Route audio from any desktop app (Spotify, VLC, DAW) via BlackHole (Mac, free) or VB-Audio Virtual Cable (Windows, free). Virtual device input is a Max-only feature.
No. All audio processing happens 100% locally using the Web Audio API. No audio is recorded, stored, or transmitted. No analytics, no tracking. See the Privacy Policy for full details.
No, Chrome only. Audio Splitter relies on AudioContext({ sinkId }) and chrome.tabCapture — two Chrome-specific APIs that Firefox doesn't support. It works on any Chromium-based browser: Chrome, Edge, Opera, and Brave.
No. Audio Splitter Max is code-signed and notarized by Apple — double-click the DMG, drag to Applications, launch. No security warnings. On Windows, run the .exe installer and follow the setup wizard.
Lite version is free — 2 devices, no account, no data collection.
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