1). Open the wave file.

2). Click the starting point that you want to edit and drag it until ending point to right direction, and then selected part of wave file will be brightened.

3). In case click the icon [Copy], and then the selected part of wave data is copied to the clipboard.

    In case click the icon [Cut], and  then the selected part of wave data is cut and it is copied to the clipboard.

4). Click the point that you want to paste in spectrum of wave data.

5). Click the icon [ Paste] and then the voice data in clipboard is pasted and saved.