Hi Newbie here ops:
Audio in has 4 inputs.

How do I enable Input 3-4 ?

Input 1-2 working fine, with build-in audio-card
and Motu UltraLite-mk3 Hybrid. (Audio interface, firewire)

With sound on Motu Input 3-4, I see nothing happening in
the Motion-view. (Input 1-2 are fine.)

Settings
audioin1 node:
Audio Source Line (Tested Digital to)
Audio Format 4 Channel
Use Global Sample Rate.

No Input? :roll:
Houdini Master Non-Commercial on a Mac.

I see in the docs, Audio In CHOP node.

Audio Format: Selects mono, stereo, or 4 channel mode. 4 Channel mode is not available on all systems. This parameter also determines how many channels are created (1, 2 or 4).

On which system is it available ? :roll: