Volume change on MBP...

My volume will randomly change itself. It does it on both Vista and OS X. Any ideas of what is causing this or how to stop it?

 

question, under what circumstances. browsing, music apps, video playback etc. or all? Does it go between two extremes , loud and quiet. Have you verified that when it's quiet, sound is still coming from Both speakers? It's possible that a loose connection to one of the speakers could cause an audible drop and resume in volume

 

You might also try downloading updated audio drivers for your notebook.

 

I usually keep my volume at max settings and use a headset. It will drop the volume and then bring it back up to or around max. Both speakers are working correctly. It does it no matter what I'm doing. It has gotten worse and does it quite often now.

 

Have you considered taking the computer into an Apple Store?

 

Yea, my volume changes now and then too. I'm sure it must be just the order in which my volumes are loaded, but it's a huge pain when I need to mount something in terminal or use ntfs-3g.

Just diskutil list or Get Info in Disk Utility to double-check the identifier before you do anything with your volumes so you don't catastrophically mess up your partitions.

 

Did you have a mobile phone near you?

Not sure if it happens pn the MBP but I noticed that if my mobile phone was near my iPod (with video), it would do all sorts of weird things from changing the volume to pausing / playing a song. Highly unlike that it will happen to a MBP but worth checking out.

 

Hmmm I think the problem is with my external keyboard and not my MBP. I use a di Vino Edge and it has a little touch sensitive volume control to the right of the keyboard. I think there is something wrong with that because I've noticed that every time the MBP's volume changes the light flashes really quick on my keyboard. Never noticed this before but I'm assuming it's the problem.

 

weird.. I would have never thought of that one.
It's best to go to the simplest setup first. Remove any externals, and be sure they aren't the cause as you suspect. The keyboard is probably it though. Maybe you can "disable" the audio function on the external keyboard?

 

That sounds like a good assumption to make . Peace.