Hello there,
I have found this thread extremely helpful since we have a similar problem: we need to measure the onset latency (how long it takes until the subject starts speaking) and the length of the time spoken.
Since we will have hundreds of soundfiles which we need the exact length from, it will be very complicated to analyse these via Audacity.
At which data do we need to look to "look at the length of the trial and subtract the RT" as you proposed earlier? Does this work even if there are several stimuli shown in one trial?
Thank you so much for your help!