Hi Doug,

I don't know a way to set up audio input and output selections from Terminal, 
but here are a few ideas that might help:
1.  I think this setting is controlled by the preference file, 
"com.apple.audio.AudioMIDISetup.plist" under your account's Library/Preferences 
folder, although I'm not sure of this. If so, moving that file to the Trash or 
to your Desktop might reset things to the default input and output devices.  
I'm not sure this is true, and it might require a restart to take effect.  But 
if you can log in through Terminal from another Mac, you can delete or move the 
file.  For example:

mv Library/Preferences/com.apple.audio.AudioMIDISetup.plist ~/Desktop

Use the tab completion feature of Terminal's bash shell to make typing easier 
-- for example, after typing the "com.apple.audio" part of the file name in the 
path, just type a period and the capital letter "A" and press tab to let the 
shell complete the filename with the correct capitalization of letters.  That 
command will move the specified preference file from your Library/Preferences 
folder to your Desktop when your press "return". 

2.  Another thing you can do is try to unload the Soundflower kernel extension, 
or even remove it.  Again, you'd need to  restart your machine for the changes 
to take effect.  The Soundflower kernel extension is installed in: 
/System/Library/Extensions/Soundflower.ext

(That's slash "Systems" slash "Library" slash "Extensions" slash 
"Soundflower.ext")
To unload this from your system using Terminal, you have to use the "sudo" 
command and enter your admin password:

sudo kextunload /System/Library/Extensions/Soundflower.ext

then enter your password at the prompt.  I've also read that you may need to 
issue the command more than once for it to "take", which you would do by 
pressing up arrow and then "return" a few times.  If you want to uninstall 
Soundflower, which I don't think you do, you could type:

sudo rm -r /System/Library/Extensions/Soundflower.ext

Again, you need to restart your computer for changes to take effect.

3. If you have a bootable clone of your system on an external drive, shutdown 
your system, connect the drive, and then start up while holding down the Option 
key.  After about 15 seconds, press your left arrow once, and then press 
return. You should boot up into your cloned operating system, and have 
VoiceOver working under that system's defaults.  Then you can figure out how to 
repair things on your internal hard drive's settings.

HTH.  Cheers,

Esther


On Oct 30, 2012, at 09:11, [email protected] wrote:

> Helo everyone,
> Does anyone know of a quick way to select the default audio inputs and 
> outputs on OS10? Quick way from the terminal perhaps? I was trying to route 
> default audio through my M-audio fasttrack interface and ended up selecting 
> sound flower instead. Now I have no VoiceOver audio and can't figure out how 
> to select the default audio settings without sited help. 
> 
> Thanks,
> 
> Doug
> 

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