File partitioning is preceded by searching for silences of a specific duration (anything between 0.5 and 5 seconds). Since the silence detector must be told how 'silent' the silence is supposed to be you have to set the detection threshold appropriately. The selection (anything between 1 and 1000) should be made in accordance with the recording level and intensity of background noise. If the threshold is too low detector may fail to localize silences between subsequent tracks; if it is too high silent parts of the recording may be mistakenly classified as breaks.
In case there is a piece of silence at the beginning of the recording, even if it is fairly short, press the Find button situated next to the detection threshold box and the value of the threshold will be adjusted automatically.
After setting the minimum separation time and detection threshold click the Process button.