4.1. New audio file
Go to menu Files -> New
Channel:
Enter the channel number in the edit, 1 for MONO, 2 for STEREO.
Frequency:
Enter the samplerate in this edit (it won't affect the playback samplerate).
Length:
Enter the length in seconds of the file to be created in this field.
Bits per sample:
Select the bit depth of the file to be created.