Test your mic & speakers in 30 seconds.

1. In step 2 above, check the Input device dropdown matches the mic you're actually using (headset, not laptop mic).
2. Speak — does the green level bar move? If not, your OS or headset is muting the mic.
3. Look for a physical mute button on your headset or its cable — many headsets have one and it's easy to bump.
4. Open Windows Settings → System → Sound → Microphone properties and confirm volume is up and the mic isn't disabled.
5. In your CCP App (or Zoom, Teams, Meet), open audio settings and pick the same mic you selected here.

1. Click Play test tone in step 1. If you hear it, the problem is the call app — pick the right speaker in its audio settings.
2. If you don't hear the tone, check the Output device dropdown is your headphones/speakers, not "Communications headphones" or a virtual device.
3. Open the Windows volume mixer (right-click the speaker icon → Open Volume Mixer) — make sure your browser isn't muted.
4. Bluetooth isn't allowed for use with the CCP app.
5. Try wired headphones if you have any — that rules out Bluetooth issues fast.

Use the Monitor a tab VU meter in step 1 to see the audio coming out of another tab — handy when you're not sure whether the silence is the other tab, your speakers, or the call app.

1. In step 1, click 📈 Monitor a tab.
2. In the browser's share picker, choose the tab you want to check (e.g. the YouTube or meeting tab), and tick "Share tab audio" before clicking Share.
3. Play the audio in that tab. The green level bar should move:
   • Bar moves → that tab is producing sound. If you still can't hear it, the problem is your output device (see "I can't hear them" above), not the tab.
   • Bar stays flat → the tab is silent. Check it isn't muted (its own volume, or the small 🔇 on the browser tab), and that something is actually playing.
4. Click ✕ Stop monitoring (or the browser's "Stop sharing" bar) when you're done.

How it works: the browser only lets a page "listen" to another tab when you explicitly pick it in that share prompt — it can't happen silently. The meter just measures the level to show you sound is flowing; it isn't recorded or sent anywhere. Tab-audio sharing works in Chrome and Edge; Firefox and Safari don't support it.

⚠ Use this on your own device, in your own browser. Don't run it in a managed or enterprise browser (e.g. Island) or on a work-managed machine — your organization's policies may prohibit capturing tab or call audio, even just to meter it. Only monitor tabs and calls you're a participant in and have the right to listen to.

1. Switch to headphones. Echo almost always comes from your speakers feeding back into your mic.
2. If the "Hear yourself" toggle in step 2 is on, turn it off — that's a deliberate echo loop.
3. Lower your speaker volume on calls when not using headphones.
4. Move the mic farther from any speaker.

1. Close other apps using the mic (other call apps, OBS, browser tabs with meetings open).
2. Check Wi-Fi: move closer to the router, or plug in an Ethernet cable. Most "robotic voice" issues are network drops, not the mic.
3. If you're on Bluetooth, switch to a wired headset for the call — Bluetooth call mode is low quality and it drops and breaks easily.
4. Restart the browser. If it persists, restart the computer — drivers occasionally get stuck.
5. Run Record & play back here. If the playback sounds clean, the problem is your network or the call app — not your mic.

1. Click the lock icon (or the small icon left of the URL) in your address bar.
2. Find Microphone and set it to Allow.
3. Reload the page.
4. If you don't see a microphone option, reinstall Island

Click below to copy a short report (browser, OS, devices it can see, sample rate). Paste it into your Slack conversation — it usually saves a round trip of questions.

📋 Copy diagnostics