I had the same issue and Apple replaces my Mac. Worked fine and now started again. the only app I use that uses Intel is the Epson printer drivers and apps. None of my other Macs (intel and M1) have this issue! only the 14" M1 Pro. The popping and cracking sound happens during online meeting (just talk) and any music app especially Apple Music. I guess Apple are moving their resources to the iPhone division -).