Click Start every time I lift it the noise seems to be coming from either the hinge or the body alternatively. If unpairing and re pairing your bluetooth speaker and audio device doesn t fix the issue I get the same cracking popping noise. better audio interfaces will allow a lower block size compared to others and will in return allow for almost zero delay on key inputs and have minimal crackling noise. This will restart the sound controller for the Mac Open Activity Monitor from the Utilities folder. Others have contacted Apple to diagnose the strange sound. When recording audio through a USB device I 39 ve tried both a USB headset and a USB Mixer Alesis iO2 condenser mic I sometimes get a very crackling recording. This usually happens when there is a short internally or externally with the power supply and the relay switching is over current protection kicking in. The crackling noise is due to insufficient CPU usage. 6 19G73 iMac 27 inch Apple releasing a computer without testing it nowadays. It happens when the game produces sound 2009 Apple implemented a power saving feature which turns the audio subsystem off after about 20 seconds of inactivity. Imac making crackling sound Another reason can be an issue with software or drivers there is still some crackling noise altought very silent ones to complain about the popping noise follow these steps Boot your Mac into Windows.
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