Voice processing professionals often use a voice editor to manually add or remove periods of silence at the beginning and end of their recordings. This is usually a time-consuming and boring trial-and-error activity. If you have to do this on thousands of files, it is a nightmare.
You can completely automate this repetitive task with the help of Vox Studio. Simply select a default length for leading and trailing silence in the program defaults and give a single command to apply it to all your prompts. Vox Studio does all the work for you. This works on multiple files in batch-mode too. You can do this on thousands of files in one go!
Automatic silence adjustment is a threshold-activated process and, naturally, requires very clean recordings.