I'm looking at the feasibility of an automated recording system for wildlife observations from a light aircraft, recording the audio from up to 4 separate mono channels (pilot, copilot, two observers).
I would like to set up a 'black box' recording system which will record (among other things) time-stamped, individual audio files that record automatically when someone speaks (i.e. when the audio input goes above a certain level). Requirements:
- Linux OS;
- Capable of multiple inputs;
- Activated by sound input above a certain level, and STOPPING (not pausing!) when it drops below that level for, say, 1s. Must record an individual track (timestamped file) each time.
Audacity, for example, simply pauses a single track while in 'Sound activated recording' mode, and doesn't seem to allow for separate inputs and separate recordings per channel.