No this question has not been answered.
Mac Mini, brand new, 2.6GHz, Core 15, Memory 8GB 1600MHz DDR3Graphic Intel Ins 1536MB
running El Capitan 10.11.6 ( made to solve the clicky USB problems in .4 and .5)
Audacity 2.1.2, the latest version--and I am on their forum with this problem as well.
PreSonus Limited Edition Audiobox USB that i have used before, with my laptop, with no problems
Eliminated many possibilities: no cords are touching. The cable from Audiobox to mac mini is same as before, a Mogami, which is also separated by superdense packing foam from other cords. Same mike and cord as before, a Blue Spark. The power cord form new monitor has a transformer, and it goes to a completely different outlet on the other side of the room, making it 4-6 feet away from all other cords at all times. I have checked all the plugs and connections, and unplugged/replugged all cables and cords.
When I go into MIDI to make sure the PreSonus is the default (it is) the input choices are sample rate 44100 and 48000. When I set both the Audiobox and Audacity to 441000 the problem happens with much more frequency than when I have them both set at 48000.
The weird tech clicking sounds can begin at anytime while I record. not related to stopping and starting, not related to pausing, not related to doing an "append record". They will begin appearing, and i can't really hear them while I record, whereas I can hear mouth sounds, but I see them pop up in the files. In playback, they are obvious. I delete the section and begin recording again. Sometimes, it will be corrected. sometimes it takes 3 or more re-records for the clicking to stop.
I apologize for this next bit: I cannot remember if I had to load software onto my laptop when i first got my Audiobox in order to use it. If so, it seems like that could be the problem, as I have not downloaded any thing onto the macmini to use my Audiobox. If that is the case, what is the link to the particular software, etc I need?
One other observation:
the Audiobox says it works with a 24bit integer; Audacity is 32 float. I believe this was the case before as well--again when I had no problems--but I am not sure. After doing a punch record in Audacity, I export it as a standard wav file.
I have two small samples, in WAV format, that i can upload if that would help.
Thank you so much!