Your computer's webcam and microphone can only be accessed by one program at a time. If you're video chatting on Skype, for example, you won't be able to simultaneously use Yondo for a live 1-to-1 session or webinar. To use your webcam and microphone with Yondo, you first need to close off access from the application that's currently using it.
In most cases, you can complete the first step below and the interference will stop.
Close All Open Apps
If you're experiencing a software conflict with your webcam or microphone, it's possible the device is being used by an application without your knowledge. Close all open applications on your computer, including those that are running in the background. Some common culprits of webcam troubles are Skype or the software that comes with the webcam -- if this software is running, the webcam or microphone might not work in other apps. Once all programs are closed, try accessing your webcam or microphone via one application at a time.
Restart Your Device
Restarting your device is one of the most basic and efficient methods for clearing out conflicts and removing possible error causes. When your device reloads the operating system, it will only be using the core system applications and whatever you've instructed it to run on startup. If you experience the same issue after restart, it is possible the cause is an application running at startup. Check through your running applications to find anything that might be using the webcam.
Disconnect the Device
Sometimes there's no rhyme or reason to particular bugs or glitches on a computer. As applications open and close, pieces of functionality get suspended in memory or forget to turn themselves off. If you have an external webcam or mic, disconnecting it from your computer removes it from the system completely, forcing any programs accessing it to stop and letting you start from scratch. Reconnect the webcam after a few seconds to see if a quick disconnect was all you needed. If you have an internal webcam, disable the device through Windows Device Manager by right-clicking it and selecting "Disable," and then right-clicking again and selecting "Enable." This has the same effect as disconnecting and reconnecting an external webcam.
In some cases, you may also have to update the drivers for your webcam.
One of the most common causes of hardware and peripheral problems is outdated drivers. Drivers are small pieces of software that tell your operating system how to interact with the various computer components. Visit the official website of your webcam or microphone's manufacturer and download the most recent drivers for your particular model of webcam or microphone. Updating drivers sometimes resolves otherwise unexplainable hardware issues. Even internal webcams require device drivers; consult your product documentation to learn the manufacturer of the webcam so that you can find its drivers.