I initially tested this using Safari in Mac OS X. Using setRate() to slow the video to 1/2 speed worked fine and the pitch remained the same. Great. Unfortunately when I tested the page in Firefox the speed changed as well as the pitch! It seems that the QT pitch and speed controls are linked in Firefox. I tested the page in Safari, IE, and Firefox in Windows as well and experienced similar problems. The strange thing is, aside from it working correctly in OS X Safari, that in the standalone version of QT it works fine (for Mac and Windows). If you change the speed in the A/V controls the pitch is not affected.