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Sometimes, when I start my machine, the volume control is set to 100, but it plays relatively quiet. I can fix it by rebooting my machine. Is there a way to restart audio devices, without rebooting the computer?

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have you tried to go into the device manager, find audio file, click right mouse button on it and choose disable. After that once again and choose enable. Hope it works ;) –  mnmnc Dec 20 '12 at 11:15
    
Nice idea, device manager lists two "High Definition Audio Device"s under "Sound, video and game controllers". I am able to disable one of them but when I try to disable the second I get a prompt asking to reboot my machine. –  xylar Dec 20 '12 at 11:35
    
Try updating your audio drivers too. –  Bigbio2002 Jan 3 '13 at 20:18

4 Answers 4

up vote 22 down vote accepted

I also had to stop AudioEndpointBuilder and restart it

net stop audiosrv
net stop AudioEndpointBuilder
net start audiosrv
net start AudioEndpointBuilder

If you look at Windows' Task Manager's "services" tab, that might help you identify what services you have tied to audio.

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On my system, net start audiosrv also started AudioEndpointBuilder so no need for the final line. –  xylar Feb 18 '13 at 11:11
    
This doesn't work for my case using Windows 7 32-bit on a HP Mini netbook. Sleeping and waking the computer usually fixes it but in some situations (such as partially buffered YouTube videos) this can have other annoying side effects besides fixing the sound. –  hippietrail Feb 16 at 10:35
    
Similar to @xylar comment: Windows Audio service is dependent on Windows Audio Endpoint Builder. Typically when you want to manually start/stop services that involve dependencies they should be nested in the form: stop A, stop B, start B, start A, where A depends on B. Another option is to use services.msc and Restart the lowest level service, which in this case is Windows Audio Endpoint Builder. That automatically executes all the above in proper order. –  merv Jun 21 at 18:21
    
can we use use wildecard??? –  Jeson Park Jun 24 at 6:26

Open up a command prompt as administrator and run:

net stop audiosrv
net start audiosrv

This restarts the Windows service responsible for handling audio.

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For Windows 7, I used this and hope it will work for all Windows flavors:

  1. Right click on My Computer
  2. Chose Manage
  3. Select Device Manager in the left panel
  4. Expand Sound, video and game controllers
  5. Find your audio driver and right click on it.
  6. Chose Disable
  7. Right click on the audio driver again
  8. Chose Enable

It should start working now.

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This problem is intensely annoying. I have found a solution that works for me. It isn't permanent as you have to do it each time the speakers stop, but it is better than restarting all the time.

Go to Device Manager Right click on Sound video and game controllers and click "scan for hardware changes"

That works for me.

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