C930s has two microphones which will also be recognized by your system and made available in your application. Audio quality can be impacted by several factors including network performance, system, application, or the device itself. To ensure that the C930s mics are working properly, please check the following:

• Are the C930s mics properly selected in your application? Sometimes, the audio can default to a laptop mic, if the computer system has one. Double-check that C930s is the mic device selected in your app. If you don’t see it listed, please review the steps in Webcam is not detected by my computer.
• Do you have the latest firmware for C930s? If not or if you’re not sure, please check Logi Tune to see if you already have the latest firmware installed or update to the latest version.
• Ensure the mic level is optimal — adjusting the level may correct the issue (see advanced troubleshooting suggestions below).
• Try another video conferencing or audio application. Many applications even have a test mode to playback audio for testing purposes.
• Verify the network or video conferencing service is not the cause of the audio quality issues — try a local audio recording application such as Windows 10 Voice Recorder (available free on Microsoft Store) and check the audio quality of the microphone locally.

Advanced steps:

You can try adjusting the mic gain lower or higher by following these steps:

For Windows:

1. Right-click on the speaker icon in the system tray (bottom right), and select Sounds.
2. Once you’ve opened Recording, right-click on the C930s microphone, select Properties, and then Levels.
3. Adjust the Mic array slider higher and lower to reset the gain.

For Mac:

1. Click the Apple logo, then click System preferences.
2. Click Sound, then click the Input tab.
3. Slide the Input Volume slider higher or lower to reset the gain.

Enable/disable processing: Sometimes the audio processing in the video conferencing application can interfere with mic performance. If your application allows you to enable/disable audio processing, take this step to evaluate if it makes a difference.

If your audio problems persist, please contact Support.