Q: FaceTime making strange clicking sound since OS X 10.10

FYI - my issue started after the first post upgrade reboot from off; I don't use headphones or the jack, just the internal microphone/video.

Despite what others here have posted, turning the sound all the way down in iTunes and then exiting iTunes eliminated my popping sound and I was once again able to hear others on both audio and video Facetime calls.

Good luck.

Glosski, iTunes has absolutely NO affect on this FaceTime issue.  Your "fix" is absolute nonsense.  I duplicated this issue on a number of occasions.  Your "fix" didn't do jack SQUAT.  Once the audio popping noise starts in FaceTime and there's no audio, the only way to temporarily restore proper function is to reboot.  Resetting the core audio might help but I've not tried that as of yet.  One thing is for sure, your "fix" is no more a solution than the other poster's suggestions of replacing their router (***?)  Once the computer wakes from sleep, FaceTime is FUBAR.

This is quite obviously a software deficiency in Yosemite.  Apple broke FaceTime and Apple will have to fix FaceTime or a lot of folks who use it on their Macs will be forced to downgrade to Mavericks.

ALQ-131

Get over yourself and take your hostility somewhere else. That nonsense fixed my issue and it might help others with the same or similar systems or software configurations. It might not - it takes less than two minutes of your life to check. Everybody gets it that you're ****** off at Apple.  I'm not wasting my time or effort replying to your insulting and obnoxious communications. Get a life away from your keyboard.

Glosski,  I'm not being a bit hostile.  You joined here just today (literally) so that's an example of the experience (or lack there of) that you have to offer.  Which is to say not much.  Your inane idea of turning iTunes volume down to 0 is a waste of time and doesn't work.  You're the one who should get over yourself.  You should STFU and let the adults continue with this thread un hampered by your silliness. 

Mine is early 2011 MacBook Pro, and i have same problem which started yesterday night. With ear phones it works fine, only when on speaker i can hear these strange sounds.

Late 2010 (maybe early 2011) MBP.

The issue also affects Skype, sometimes. But as reported by others, all other sound is fine. Additionally, I have FaceTime sessions that start with a silent "ring" to then start the ringing sound once I accept the the call, which does tend to make conversation somewhat difficult.

I would write a long rant about Yosemite but I guess this isn't the place.

Well I am surmising it must be something to do with the wireless/BT hardware in 2011 MBPros and earlier.  I also have a brand new 2014 MacBook Air running 10.10.1.   I am unable to re-produce the audio issue in FaceTime using the 2 methods that always cause it on my early 2011 MBP:  1) Letting the computer go to sleep or closing the lid to put it in sleep mode and 2) Using the headphone jack then unplugging the headphones.

Hopefully it is just a software tweak that Apple needs to write to fix the issue.  Continuity is one of the biggest new features in Yosemite and it uses WiFi and Bluetooth 4.0.   While it is true Handoff and Cellular Hotspot need BT 4.0 and BLE support and cellular calls and SMS messages just rely on Wifi, the Bluetooth 4.0 spec handles high bandwidth connectivity as part of the spec (24Mbps) by using WiFi.   2011 and earlier MBPros support Bluetooth 2.1 and the BT/WiFi card is one unit from Broadcom while newer MBPros and Airs use BT 4.0/WiFi Broadcom cards.  This is why I am coming to the conclusion that it might be a software/hardware functionality issue with Yosemite and older BT/WiFi cards.

Just read all 10 pages of this thread, and I'm having all the same issues:  popping/cracking on FT when plugging/unplugging headphones, sometimes w/o plugging in headphones, can't hear others but they can hear me, etc., etc.  Early 2011 MBP running 10.10.1 and iOS 8.1.2.  I'm guessing it's a bug that affects non-BT 4 machines.  Just booked a Genius Bar appointment and will reference this thread when I take my machine in for them to diagnose the issue.   Fret not, folks; they'll fix it.  I'll just use Skype until they do (even though the quality isn't on par w/ FT). 

I'm having the same problem. 13 inch - late 2011 and the audio on FaceTime doesn't work. They can hear me - all I hear is a clicking, like a speaker is broken or something... but only on FaceTime.

Just went to the Genius Bar.  Ran a bunch of tests, all on separate user accounts.  The Genius thought it could be a logic board issue, so they will replace the logic board free of charge (I had it replaced a few months back).  I'll post the results when I get it back.  I have my doubts that this is a logic board issue, but we shall see!

happygodavid,

I'm frankly surprised they suspect a hardware issue.  Also a bit disappointed as this is obviously a software bug in Yosemite.  In my case and I'm sure most others, this issue didn't exist prior to installing Yosemite.  I really wish Apple would roll out a fix for this.  Best of luck to you and I hope your Mac and the rest of ours get's squared away soon.

Well, I have the same issue with my early 2011 MBP. I have been following this thread, with maybe another data point here to offer. I have been wanting Continuity to work, so I did the surgery and updated my airport BT/Wi-Fi card to the MBP 2012 BT 4.0 version, then applied the automatic terminal script to change the file parameters to recognize the new card for Continuity. I am excited to report that Continuity is working like a champ now. I am not excited to report that the audio FT calling was not resolved. There is still an intermittent clicking and faded sound issue when addressing calls. So, not sure what this means as far as the older BT 2.1 card in combination with the Yosemite software being the culprit. Any ideas?

Alq, I agree with you completely and have my doubts as to whether or not this will resolve the issue. Since the Genius Bar offered to replace my logic board for free, I figured I had nothing to lose. My thinking is that if the logic board replacement doesn't resolve the issue, they will escalate the issue to higher powers that can fix the bug (assuming that's what it is, and I think that's the case).

Adding my 13-inch, Late 2011 pro to the list. SMC reset alone (shift-control-option-power button) solved it until something throw it off again, I been having to do this for 3 times already since Yosemite upgrade.

Macbook Pro 13" early 2011 - same issue here...