Mark, Thanks for your reply. Previously I had asked if anyone would be interested in my packaging some of my work so that others could use it. As you may know, this can be a daunting task, and I wanted to know whether or not anyone would find the "capability" useful before dumping a lot of time in creating a useable "program." It's like before I build you a car, I ask you if you have any need for transportation. If everyone is happy with the second (and fourth) clip, then I won't bother trying to write the requisite GUI interface and docs that I need to convince everyone to look at. I'm perfectly happy with my command-line and scripts, what I have called a "retro-UNIX" environment, for audio. So my question is whether or not anyone else has a use or need for this type of sound --- vastly improved headphone sound? This is a way of creating accurate but simulated binaural recordings for larger rooms from a monophonic, dry signal. It's a better way of producing what you actually hear in a room than that which is done with the typical mixer and synth. Thanks again for your response. Regards, Dave.