@ssmith1226 said in Weirdest thing happened:
Wayne,
I had a similar issue last January. I was using my iMac and Zoom Recorder Microphone. I was interacting (playing simultaneously) with other musicians located throughout North America using software to facilitate this called Jamulus. When we were playing together, my playing sounded through the headphones one half to one step higher to the rest of the online ensemble. Without the headphones, I was playing in tune. After I reinstalled the microphone and adjusted the parameters of Jamulous, the problem corrected. This problem also manifested itself intermittently on GarageBand as well, where the pitch recorded on GarageBand was 1 - 2 halfsteps sharp compared to what came out of the horn. The only way I found to solve this intermittent problem was to remove Jamulous from my computer.
In your case, you were monitoring your Yamaha Silent Mute System through your headphones on your Mac. You assumed that the background tracks were modified in pitch. Is it possible that your recorded pitch from the Yamaha Silent Mute was modified and the background tracks were the correct pitch?
Had you installed any new software on your Mac that might have created a sample rate issue and modified the pitch? If the sample rate of Your Microphone was, for example 48kHZ and your computer got reset to 44KHz, your recorded and monitored pitch would be relatively sharp compared to your background recordings. BTW, when I discussed the problem with Apple and Jamulous Tech Support, no one could explain the problem, correct the problem, and each pointed their fingers at each other.
I sometimes notice that Apple does not always play well with others.
The new thing was some AirPods which are wireless headphones, but they are Apple. Still wouldn’t rule that out. I do notice that my MacBook seems to eventually “learn” better habits in time.
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