If you experience echo during a video (or audio) call, this indicates a problem at the other end of the call. (Echo is where you can here your own voice repeated through your speaker/headset.) This means that the person you are speaking to needs to change something to stop the echo:

  • Make sure that the microphone and speaker are not too close to each other
  • Echo is often prevented when people who use a software client (StarLeaf app or Click-to-Call) do so with a headset/headphones rather than in-built laptop speakers
  • Audio problems are often caused by the person at the other end of the call having the microphone level too high. The StarLeaf app warns if this is the case and you can simply lower the microphone level using a control in StarLeaf app
  • Do no use television speakers with StarLeaf app or Click-to-Call (they add delay to the signal which will cause echo)
  • Additionally, ensure that your own microphone level is not too high as this could increase the likelihood of echo

MS Surface Pro

If you are using a Surface Pro, disable “enhancements” on the microphone array:

Using a speakerphone

If you are using a speakerphone, use the lowest comfortably intelligible volume to minimize echo in the first place

Using StarLeaf app on Windows

If the people you talk to complain about echo and you are using StarLeaf app for Windows, it can be due to your microphone having incorrect settings. To access the microphone settings, go to the Windows Control Panel. Find your microphone settings in Hardware and Sound > Manage Audio Devices and select the Recording tab. Select your microphone and choose properties. The available settings depend on the type of microphone that you have. On the Enhancements tab, select Echo Cancellation. Below is an example of the settings you might see:

More information

When you are troubleshooting echo, it is worth understanding that there are three causal factors:

  • Input or output is too loud at the far end. The volume of any speaker, or the microphone level, could be too high. The speaker and microphone might be too close together
  • There is too much delay in the signal. Check the setup. Is there any part of the setup that is introducing increased delay? Televisions in the audio path on StarLeaf app can create problems, as can anything else that results in high latency on the output (or input) path
  • Something is performing some difficult to understand processing (e.g. non-linear) on the audio signal. The major culprit is the one Steve has mentioned, the “audio enhancements” being enabled on Windows. This isn’t a problem limited to the Surface Pro at all, but many laptop manufacturers.