Android: See How to Adjust Your Android Phone's Volume and Display Settings on the website.

macOS: See Turn the volume up or down in Apple's online support documentation.

Windows: For Windows 10, see How to Adjust the Volume for Individual Apps in Windows on the website for Windows 8.x, see How to adjust volume and sounds in Windows 8 on the website.

If you can hear audio, but the volume is too high or too low: If the problem persists, contact your carrier.

Android: To ensure that audio isn't being sent to the headphone jack, plug headphones in, and then unplug them.

iOS: See If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker in Apple's online support documentation.

macOS: See Get help if the internal speakers on your Mac don't make sound in Apple's online support documentation.To run troubleshooting steps that may not require administrative access, click the Run troubleshooter drop-down. Running the audio troubleshooter may help resolve your issue, but it requires administrative access to your computer.

Office mix troubleshooting