Had a lost of ticks last couple of hours and was able to watch the console log:
Tick’s for sure also while sound is set to mute (at OSX-level)
A couple of entries from the console log:
13/11/13 17:27:04,247 mds[54]: (Warning) Volume: vsd:0x7fcabe085400 Open failed. failureCount:2 {
DisabledRecycleCount = 2;
}
13/11/13 17:28:05,442 mds[54]: (Warning) Volume: vsd:0x7fcabe08b000 Open failed. failureCount:3 {
DisabledRecycleCount = 3;
}
13/11/13 17:30:07,568 mds[54]: (Warning) Volume: vsd:0x7fcabb01b600 Open failed. failureCount:4 {
DisabledRecycleCount = 4;
}
13/11/13 17:26:33,236 mds[54]: (Warning) Volume: vsd:0x7fcabe05d800 Open failed. failureCount:1 {
DisabledRecycleCount = 1;
}
Searching for "volume" showed a lot of similar errors in the log file. I also found the ticks occuring without a new log entry. And while using Parallels () it seemed that whenever i started an EXE, in many cases i would get a tick (but not in all cases).
Also, since it is hard to pinpoint the location from the sound, i do wonder where the tick is coming from within the MBP case.
Google-ing to see whether there are more people having similar console log errors, i found only
http://bbs.pcbeta.com/viewthread-1421521-1-1.html , but in relation to Mavericks (coincidence?)