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Sound enters the mic, and as it exits the speakers, it’s detected by the mic again. For example, when gaming with friends, echoes can be heard when your headset mic picks up audio from your headset speakers. How do Echoes Occur on Computers?Įchoes can occur on computers, mainly due to audio feedback between microphones and speakers.Īudio feedback is cyclical. Instead, the soundwaves continuously bounce around in the space, piling on top of each other. This is because the delay between the original sound and the echo is too short for the ears to distinguish them. In contrast, if you try yelling in a smaller space, distinct echoes can’t be heard. This is why recording studios and vocal booths have padded walls – to get a clear, unfiltered sound rather than an echoey, cavernous one. When soundwaves meet softer, more porous surfaces, like foam or fabric, the sound is absorbed. If you’ve ever stood atop the Grand Canyon, yelled at the top of your lungs, then heard a clear resounding reply, that’s a perfect demonstration of these conditions.
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It also requires the presence of hard surfaces to allow soundwaves to bounce off more effectively.
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