Where can I find resources to improve my listening ability? I am currently studying for the HSK1 exam, I can read the vast majority of the required vocab and know the pinyin for most of the words but I am having a lot of trouble understanding the audio on the mock exam audio tracks.

Ideally, I would love a website that plays me a short sentence and test my transcription ability, but I can not find any services that offer this. 

Does something like this exist? Or is there something else I can use to practise my (very basic) listening skills?
http://www.sexymandarin.com is suitable for beginners…
I haven't got anything good for exam preparation but if u wanna learn it in depth it's better to find a native speaker and listen to him speaking