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LineIn enables the soft playthrough 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. If you need to input audio from an external device, recreating OS 9's "Play input through output device" option, then LineIn is perfect for you.

What's New

Version 2.3:
  • A long-standing issue with latency has finally been cured
  • Added a menu item for toggling play-thru


  • OS X 10.7 or later

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5 14


Current Version (2.x)


Downloads 161,966
Version Downloads 37,797
License Free
Date 10 Sep 2014
Platform OS X / Intel 32
Price Free
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