On Mon, April 16, 2018 3:59 pm, bjorkj02 wrote: The naming is confusing, but you want to install the Jack 2 binaries, which are built from jack 1.9.12 source, and the installer is named JackOSX 0.92_b3. You can find that under the downloads link at http://jackaudio.org This is a direct link: https://github.com/jackaudio/jackaudio.github.com/releases/download/1.9.11/… There is a program installed along with the jackd server called QJackControl, might be listed just as JackControl when installed on MacOS, start that, it will guide you in picking the audio device you want to use, sample rate, etc. Hit start, it will start the jackd server for you. After that start the autotune application. In the connections tab of JackControl you should see new input ports and output ports from the autotune app. Click on the signal you want to send to the first channel of the autotune, click on the first input of the autotune entry, click the connect button. Do the same for the second channel if you are tuning a stereo source instead of single channel source. First, though are you sure you have the X42 version of autotune? The original version was stand alone, called zita-at1, x42 (Robin Gareus) took the original and wrapped it up as an LV2 plugin called fat-at1.lv2. The LV2 plugin format was developed on linux, Ardour on MacOS may support that plugin format, I'm not sure, but I've never heard anyone mention LV2 on MacOS, it at least can't be very common. https://github.com/x42/fat1.lv2 So make sure of what you have first to verify you really have what you think you do, and if it is really the stand alone version it would probably be zita-at1 from Fons Adriensen, http://kokkinizita.linuxaudio.org/linuxaudio/index.html http://kokkinizita.linuxaudio.org/linuxaudio/zita-at1-doc/quickguide.html -- Chris Caudle