How do I GRADUALLY change the speed of an audio clip while simultaneously affecting pitch?

I was surfing around the web and I found a solution, although it doesn't make for the most smooth workflow. Basically I can assign the sample to a MIDI note on the EXS24. And then I can control the speed using pitch bend MIDI. I can set the value of max pitch bend in the EXS24 to be as high as I need it to be and I can write in automation for the pitch bend. The downside to this is that if I have to start the sample all over again if I want to hear just a part of it and I will probably have to do this many times while I write the automation. Nonetheless, this does accomplish exactly what I wanted.

Thanks Indyuser. This is almost perfect. The only problem with this is that I tried this and despite the fact that the tempo automation looks smooth, it sounds like the tempo is still being changed in steps.

brendanwhiteman, thanks for the tip. Unfortunately, it seems the sliding time scale/pitch shift tool in audacity still adds artifacts even when you match the speed change % to the tempo change %. I've known Audacity's "change speed" tool to be transparent so I made a comparison. In the sts/ps tool, I tried a static 50% in both values and then compared to Audacity's "change speed" tool at 50%. The sts/ps tool definitely sounded worse than the "change speed" feature. It's a shame because this is definitely how I would do it if it weren't for that.