Hi Tom with this plugin for Audacity I think it is more easy Regards Chris http://wiki.audacityteam.org/wiki/Nyquist_Effect_Plug-ins#Panning_.28random.29 Ramp Panning (panramp.ny) View | Download Author: David R.Sky Evenly pan your stereo audio, starting at one point in the stereo field and ending at another. -10 corresponds to 100% left, 0 to center and +10 to 100% right. Parameters: Start position: from [where -10 - +10, default -10] End position: from [where -10 - +10, default +10]