Is there any way of changing the tempo for a project without having to do into the Ruler tab of Project Properties? Perhaps putting a tempo box on the toolbar like so many DAW's do it?
Hold the Ctrl key and drag the edge of the audio event? Elongating the event, slows it down, the opposite speeds it up. The pitch remains the same with this method.
To speed it up/down and change the pitch like the speed control on an analog R-R machine, change the sample rate of the file (in Sound Forge for instance).