Suddenly no sound when turning on Boom (1.9.1) or its Equalizer slider.
Tried deleting all files with references to Boom, redownloading and installing Boom, even tried reverting to earlier versions. I'm on 10.9.4, on a 2.7Ghz Intel Core i7, 16 Gb RAM. Reverted to an old backup of my HD with Mountain Lion and Boom on it, and worked perfectly, so I guess no hardware problems on this machine, nor audio port headphones problem in this case. I've had to deal with that red light sensor not turning off when headphones are removed, in the past.
I think this may have begun with a recent Safari (7.0.6) and an iTunes (11.3.1) update.
Tried the various solutions on offer on this thread. Nothing worked for me, apart from disabling Boom. Then sound to my internal speakers is fine:
0. Opened 'Audio MIDI Setup' and check volume control levels under input and output. Please make sure to uncheck Mute. Check the same under System Preferences->Sound. Tried with and without Apple TV.
1. Searched and deleted these files:
/Library/Preferences/com.apple.soundpref.plist
~/Library/Preferences/com.apple.soundpref.plist
/Library/Preferences/Audio/com.apple.audio.DeviceSettings.plist
/Library/Preferences/Audio/com.apple.audio.SystemSettings.plist
and then:
Shut down your Mac.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
2. Aram's patch:
sudo kextunload /System/Library/Extensions/AppleHDA.kext
sudo kextload /System/Library/Extensions/AppleHDA.kext
3. This other option just turns Boom off:
sudo killall coreaudiod
or Force Quit it in Activity Monitor.
4. Did a hard shutdown/reset by simultaneously pressing "Shift" "Control" "Option" keys with your left hand and at the same time pressing the "Off" button in the upper right hand corner of the keyboard.
5. Tried re-installing Mavericks.
6. Tried repairing permissions.
7. Reset NVRAM on Mac.
8. Reset the System Management Controller (SMC).
9. Tried everything Boom support suggested.
Uninstall Boom within the app via Settings->Preferences->Uninstall. Next. delete all Boom copies including the DMG files, and support files with Boom or Global Delight in the filename. Now, reinstall a fresh copy of Boom via our website www.globaldelight.com/boom and check if it helps.
I'll check back to see if anyone finds a fix. Off to file a bug report with Apple. https://bugreport.apple.com/
Jon