How to get external audio input/SMPTE from an iTunes?

[rfikes4]

I would like to make audio reactive effects from music playing through an iTunes playlist. I do not want the input to be coming through my laptop's microphone. Instead I want the audio to be picked up straight from iTunes or some other program. How can I achieve this? Also would it be possible to pick up the SMPTE signal from the audio being picked up as well?

[ZYXT]

Soundflower and Loopback (from the same developer) both route audio from one application to another. As far as I am aware, iTunes doesn't send SMPTE Timecode. Would be better to use something else, maybe garage band or a DAW.

[Oaktown]

Use 4 channels of Loopback channel mapping table with Soundflower (64-ch) as follows:
Channels 1 & 2, assign main output L & R
Channels 3 & 4 assign your SMPTE source 1 & 2 )

Arena can take two independent SMPTE timecodes

In Arena, choose channels 1 & 2 for audio input, channel 3 for SMPTE 1 and channel 4 for SMPTE 2

Then you would use channels 1 & 2 to animate a parameter. To do so, right click on the arrow next to the parameter name and select External Audio FFT.

Note that you could also setup channels 5 & 6 for preview but you get the idea!

iTunes doesn't send SMPTE Timecode

It doesn't generate it but it can play an SMPTE file since it's just audio. Here is a link where you can generate SMPTE timecode as Wave files.

Horae and Qlab (pro audio or video) are both great timecode generator for the mac. As a note, Qlab can handle multiple streams of independent LTC and MTC timecode.

[elkogan]

Oakton , I followed your pictorial guide to get iTunes playing through resolume-success when I switch by system preferences sound output to "loopback audio" But when I do this, music doesn't play through my interface/monitors anymore. Luckily I have audio hijack so I told the program to take input of "loopback audio" and run it through "mobile pre output"-sound started playing out of my monitors again.
The only problem is I can't control the volume level off my keyboard aka the master volume fader on my computer. I have to change the volume in iTunes itself.

This whole method is tedious, doest give me full control I need, nor is the volume off my monitors loud enough this way. What Can I do differently?

Thank you so much for your time in advance!