If your friend can’t hear anything at all from your side, the problem is either with your microphone or with their playback device (speakers or headphones).
Check your microphone.
If you’re using your computer’s built-in microphone, make sure that the mute button isn’t pressed and that you’re not muted in Skype. Right-click the Volume icon in the notification area of the taskbar, and then select Sounds.
Click the Recording tab, right-click the name of the microphone you are using, and then select Properties.
Click the levels tab, and move the sliders to adjust the volume and boost of your microphone. To mute your volume, click the Mute button .
If you’re using an external microphone, check that it’s plugged in – or if it’s a wireless mic, check that the batteries are charged. If Skype can’t detect a microphone signal, you’ll see a message to let you know.
Make a test call.
Skype’s free test call is the easiest way to see if there’s an issue with your mic – it prompts you to record a message, and then plays it back for you to hear. Type echo123 into the search field in Skype to get started, then call and follow the instructions. We have a handy guide to explain how to make a test call.
If you can hear your recorded message played back, then your microphone is working fine. The problem might be with your friend’s connection or playback device. Ask them to check out our guide to solving speaker or headset issues.
If you can’t hear your recorded message, continue through these steps to check your microphone settings in Skype.
Check your Skype settings.
Watch this short video for the lowdown on checking your audio and video settings, or follow the steps below.
In Skype, click Tools > Options, and then on the left click Audio settings.
In the Microphone drop-down, select the mic you want to use. If you only have your computer’s built-in mic, you’ll only see one option.
Make a noise. If the microphone can hear you, the green on the Volume bar will move up and down. If you have more than one mic and you’re not sure which name relates to which mic, talk into each microphone in turn and check the volume bar for movement.
Check your Windows settings.
If the above steps haven’t helped, you might have a problem with your Windows audio settings. Microsoft has a tool to automatically diagnose and fix audio problems.