No sound from synth connected to Push 3 (Controller)

[BackSackNGuac]

Hey folks!

Loving the Push 3 so far but one minor thing I can't wrap my head around so hoping somebody has an answer (or can at least tell me it's me being dense...):

Using Push 3 (controller) with Live 12.1.1 and have a Roland TB-3 connected via its Out (L/Mono) to Push's In 1 port (along with Midi but that's working fine it seems). For portability's sake and general sketching it's more convenient for me to just use my Mac speakers atm, but even with my headphones plugged into the Push I'm not hearing any sound from the TB-3 despite audio showing as coming through on Ext In (1 and 1/2). Push is set as both the input and output audio device (though would like to get this set up with using the Mac speakers as the output ideally!)

Any ideas? Google has yielded nothing so trying here. Cheers in advance!

[Lar-ZZ]

I don't understand your set up, so this may not be any help.
I'm using Push 2 and a Yamaha MODX synth. I use the Push to trigger the synth so I can play scales mode on the Push.

The synth is connected to the computer by USB, and synth audio out is connected to the audio interface.
Push triggers midi data that is sent to the synth. The sound coming out of the synth is audio and has to be captured in an Audio Track in Ableton.
I can use Push to trigger the synth, or midi out of Ableton to play the synth. Either way, the only sound coming out of the synth is captured in the Audio Track.