Is there any easy way to listen to the input on a mac?
For example, assume I have a microphone hooked up to the input (i.e. line in) of my mac, and I have headphones hooked up to the output of my mac, is there any way that I can hear what I say in the microphone through the headphones?
This is very easy in Windows XP, simply by going to the sound settings for recording devices, checking "Select" on the Line In and increasing the volume. Which makes it so you can hear what is said into the microphone.
It has to be in real time, a solution where you record the input and then playback the output later doesn't help.