Why Is There No Sound When I Use Chromecast?
Troubleshooting a Chromecast without sound can be difficult because the issue could rest in one of many places. Here are the main reasons there’s no sound:
The device is mutedThe cable or port is badThe software is outdated (or experiencing a glitch/conflict)The Chromecast itself is failing
How Do I Get Sound Through Chromecast?
Like most streaming devices that plug directly into a TV, Chromecast delivers sound through HDMI. As long as an HDMI cable attaches it to the display, it will carry video and sound.
How to Fix Chromecast Sound Not Working
Before you buy a new Chromecast or opt for an alternative streaming device, walk through these simple tips to see if one of them will get the sound to work again. It might sound like an obvious step, but even if the TV’s volume is maxed out, you may have turned down the Chromecast’s volume from your phone without realizing it. To test this, first, open the app you’re trying to cast from, and then use the volume buttons to turn it up. Use the remote’s Input button, or whatever that function is called on your remote, to switch to TV mode or another input with a different device plugged in (an Xbox, Roku, etc.). Since you’ve already confirmed the volume is turned up on both the casting device and the receiving device, and the TV can provide audio apart from the Chromecast, you need to ensure the device doing the casting has working audio on its own. Force it to close down, wait a few seconds, and then start it back up and attempt to cast it again. Google has instructions for how to reboot the Chromecast from the Home app, but it might be easier to unplug it for a minute. An outdated or buggy firmware could be to blame for the sound issue. If an update isn’t available, you could try to reinstall the app.