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?

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.

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.

This is a new feature in Mavericks.

Hopefullt there's a hack that will disable this. Extremely annoying.

That's not a solution either. But thanks for suggesting it.

I agree, I just use it so i can hear my music a little better. My pleasure

I also want to be able to turn off this feature as well. Seriously, why in the world would they add this feature WITHOUT including the ability to turn it off?

I also want to be able to turn off this feature as well, please help apple ????????????????????????????,

I would love a solution to this. Anybody find some Terminal code to disable it?

Oooo Sorry,,,,, for trying to help...

Exactly the same for me!

SOLVED!!!

Install Windows or Linux!

I completely agree! I'm a big girl who would like to regulate her own output balance...

this **** blows mane. ALL I WANNA DO IS LISTEN TO MY MUSIC IN PEICE 😢

Ew no. The solution is to downgrade to Mountain Lion because it's way faster and less buggy anyway. And it actually has color labels and "open in new Finder window" 😀

ANY UPDATE????? hack...something... I'm so frustrated. What a terrible idea Apple had.