The present TTS is wrong here since it cuts off the P at the end. On the page I linked you to, there is one pronunciation for skärp which is very good, and another one for the word skarp which means 'sharp', also very good. If you leave that page and go to the map page, there's another pronunciation for skärp which sound pretty much the same to me, only it has poorer audio quality.
In this case, you can see it on both vilket, which would be vilka if it were plural, and ditt, which would be dina if it were plural. So Vilka skärp är dina? would be 'Which belts are yours?'. A lot easier to tell the difference in Swedish than in English, if you ask me :P
The "sk" combo is an airy sound that comes from the back of your mouth. Maybe try and listening to the pronunciation on something else so you can hear it better. I listened to it on Google translate and that wasn't so bad. Although I couldn't hear the p at the end of the word on Google translate and it's definitely pronounced with the p.