I am partially deaf in one ear and require the use of the accessibility feature of "Audio Balance" when using headphones and over the past 48 hours I've noticed a big problem with my iMac 4K.
Whenever I turn the volume up or down it's changing the balance level with each click of the volume. So when I turn the volume up it's moving the balance further to the right and away from the left side instead of leaving the balance level as I selected and then changing the master volume which in turn allows me to listen to audio centred at any volume.
I know it's nothing to do with my hearing as I have the exact same balance on my MacBook Air and it is not having the same trouble of moving the balance when the volume is turned up or down.
You can see in the photos below that the balance slider is missing from the "Master Stream" section and the Master Volume is greyed out and it's just adjusting to left/right volume, while the bottom picture is what my MacBook Air which has the balance working perfectly and leaving the balance as I selected and just adjusting the master volume while leaving the left/right volume untouched.
iMac 4K
MacBook Air (Balance Working Perfectly)
I have no idea how this changed, I've tried restarting, resetting SMC/PRAM and just this morning did a full clean install and Time Machine backup and it's still there. Does anyone know how I can get it back to way it is on my MacBook Air.
I've installed no new software or anything like that the only thing I've done in past few days is installing the latest 11.2.1 update.
I am using the exact same headphones in both examples so I know it can't be that. I've also noticed that it says "External Headphones" for the MacBook Air which is working perfectly, while the troublesome iMac 4K has the headphones listed as "Built-In Output". Could this be contributing?
Any help is greatly appreciated as this is very annoying for someone with partial hearing loss.
Whenever I turn the volume up or down it's changing the balance level with each click of the volume. So when I turn the volume up it's moving the balance further to the right and away from the left side instead of leaving the balance level as I selected and then changing the master volume which in turn allows me to listen to audio centred at any volume.
I know it's nothing to do with my hearing as I have the exact same balance on my MacBook Air and it is not having the same trouble of moving the balance when the volume is turned up or down.
You can see in the photos below that the balance slider is missing from the "Master Stream" section and the Master Volume is greyed out and it's just adjusting to left/right volume, while the bottom picture is what my MacBook Air which has the balance working perfectly and leaving the balance as I selected and just adjusting the master volume while leaving the left/right volume untouched.
iMac 4K
MacBook Air (Balance Working Perfectly)
I have no idea how this changed, I've tried restarting, resetting SMC/PRAM and just this morning did a full clean install and Time Machine backup and it's still there. Does anyone know how I can get it back to way it is on my MacBook Air.
I've installed no new software or anything like that the only thing I've done in past few days is installing the latest 11.2.1 update.
I am using the exact same headphones in both examples so I know it can't be that. I've also noticed that it says "External Headphones" for the MacBook Air which is working perfectly, while the troublesome iMac 4K has the headphones listed as "Built-In Output". Could this be contributing?
Any help is greatly appreciated as this is very annoying for someone with partial hearing loss.