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On OS Mavericks, When i Face Time it lowers the system volume. Like iTunes and the adjustment sounds for volume up, and down, and such. Is there a setting, or preference to stop it from lowering every other volume?

I have been using mavericks for some time now, and i like the upgrade. It's a fantastic improvement to an operating system.


However i've noticed that when i go onto facetime, it dulls EVERY OTHER SOUND.


Like when i want to watch a video on youtube, it doesn't play it on full volume

Or listen to something on itunes, and control the volume myself. It lowers that too.


It lowers everything except the facetime conversation


Is there a setting or ANYTHING to turn that off?

MacBook Pro (15-inch Late 2011), OS X Mavericks (10.9)

Posted on Oct 30, 2013 8:56 PM

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Posted on Nov 5, 2013 11:27 PM

Same here! And if anyone is monitoring this from Apple, this question has been asked in several other communities posts. I already hated that I couldn't adjust the volume on specific apps, but now I have to hang up with my bf or ask him to be quiet if I want to watch a video or listen to something.... UGGHHHHHH.

56 replies

Dec 4, 2016 3:58 AM in response to JaysITunes645

ok, for mavericks you will need to execute the following in you terminal:

printf "p *(char*)(void(*)())AudioDeviceDuck=0xc3\nq" | lldb -n FaceTime


If you don't have lldb (Xcode additions) you will be prompted to install them first.


On Sierra you will have to deactivate the System Integrity Protection first.

To do this, start in recovery mode and execute:

csrutil disable

in terminal over there.

Feb 19, 2017 7:36 AM in response to JaysITunes645

Keeping the aforementioned terminal code somewhere (I know i personally am not going to remember it) or looking it up every time is very tedious, so I found kind of a silly workaround that at least I can remember how to do.


Download Soundflowerbed (I do audio work w/ outputs from my computer so I already happened to have it). From the video menu of FaceTime route the output audio through a Soundflowerbed channel, and then route the same channel to your built-in output. FaceTime will only lower the volume of other things routed through the Soundflowerbed channel.


This is the same idea as the bluetooth headphones idea listed earlier in the thread. This works a bit better for me because I don't have bluetooth headphones, and Soundflowerbed is free.

On OS Mavericks, When i Face Time it lowers the system volume. Like iTunes and the adjustment sounds for volume up, and down, and such. Is there a setting, or preference to stop it from lowering every other volume?

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