Slow volume response since installing OS X Mavericks

I've definitely noticed this same slowdown. Even on the very latest iMac, adjusting the volume is incredibly laggy. You can practically buffer the volume completely up or down before the OS responds.

Anyone find a solution for this? Still happening here.

Reset your pram.

- Swith off your system

- Restart and immediately press Cmd+Option+p+r all at once

- Let the system restart/chime thrice (the 4 buttons pressed at al times) then let go

- Restart your system

I, likewise, am suffereing from this lag in response to volume key presses since upgrading to Mavericks. No PRAM zapping, cache removal or restarts effectively resolve this delay. However, I have noticed that when I have the System Preferences Sound panel open (and frontmost) the delay is not exhibited.

This seems to indicate to me that there is a bug in whatever software daemon listens for these key presses and relays the instructions to the hardware. Perhaps it is related to Apple's efforts of saving battery life. I speculate that the listening daemon lowers its sampling frequency when "backgrounded". While the Sound panel is frontmost the listening daemon ramps up it sampling rate thereby improving the response time.

Whatever the cause of the delay may be its presence is annoying.

I'm having this problem as well, but every infrequently. Sometimes my late-2011 high-end 15" MacBook Pro wakes up responding very slowly to volume adjustments, and the traditional volume pop sound is missing as well. However, killing the core audio daemon forces it to restart, which fixes the problem for me.

To kill the core audio daemon, open Terminal and type:

sudo killall coreaudiod

The system will then ask for your password; enter it and the core audio daemon will be killed and restarted shortly after, fixing the problem.

Quitting Boom (Version 1.8.1) solved the problem.

Thanks! It worked for me.

sudo killall coreaudiod

Thanks! It worked for me too. i s'pose that what Gurple said is somehow correct, also, my whole system seems to have gotten a minor speed boost by executing the following command:

sudo killall coreaudiod

Silly, silly apple. tss.

Thanks bluesourav. Resetting the PRAM worked for me!

restarting coreaudiod fixed the problem of lagging volume keys on MacBook Pro (bought in mid 2012).

The "sudo killall coreaudiod" command suggested by Vaelian helped solve the lagging problem for me. I'm using a mid-2013 MacBook Air.

"sudo killall coreaudiod" also worked for me (I don't have this app Boom)

I typed this command on terminal, it stopped playing my musics and then I pressed the volume button again and it was working flawlessly =D

"sudo killall coreaudiod" worked for me too! I have a MacBook Pro 2012 with Mavericks. Fixed it all.

Thanks!!

'sudo killall coreaudiod' worked perfect for me! using a MacBook Air 2012 with Mavericks.

thank youuuu!