LineIn

LineIn is a simple application for OS X to enable the soft playthru of audio from input devices. In simpler terms, you can use LineIn to play sound through a microphone or any other device plugged in to your Sound In port. Use it with Audio Hijack or Audio Hijack Pro to hijack audio from external devices.

Downloads

	LineIn 2.0.3	Freeware	Download		(156 Ko)
	LineIn 2.0.2	Freeware	Download		(156 Ko)
	LineIn 2.0.1	Freeware	Download		(156 Ko)

Freeware by Rogue Amoeba

SoundSource

Accessories - Tool to switch input and output audio sources