I wish to control a tone generator from a cell in an Excel spreadsheet, so that the audio frequency output changes as the spreadsheet cell value changes. I also want to play the tone in real time. Would I be right in thinking that this cannot be done in Audacity because you must first create a track before you can play it? I know that Excel has the ability to link a cell to another application using its DDE (dynamic data exchange) but I do not have the ability to write code. ANy suggestions would be welcome.