I need to generate recordings of sounds made by mechanical equipment. These sounds occur randomly every few hours, and only last approximately 1-3 seconds.
Ideally, I would like software that can perform that exact task. I have not been able to find such an app, so I posted this question (and placed a bounty on it!). While I wait for an answer, I was thinking about other ways to obtain the needed recordings.
Is anyone aware of software for either windows or android that can process a 2-12 hour audio recording and automatically delete all time periods that have no audio?
Ideally, I would like to set the dB threshold that defines "no audio".
Also, ideally, I would like to be able to specify the amount of empty audio before and/or after each fragment that is kept. For example, keep 1 second of empty audio before each fragment that is used.
Since I have not yet generated these recordings, I am open to using any audio file types for which I can find a recorder.
I would like gratis software (freeware) for this task.