Automatically start recording on sound input

[Matt Phillips]

I am trying to record external hardware, mainly drum machines and synths. Is there a way to arm a track and have it automatically start recording when it detects an input and then stop when it doesn't detect anything?

[John Vere]

No. But if you’re working with drum machines you should use midi sync. You can set most  drum machines and external sequencers  to start and stop when you hit play or record in your DAW. 
This way Cakewalks tempo drives the hardware devices  and when you record either the midi or the audio output from them it will be in sync. 

Edited July 28, 2021 by John Vere