I listen to a lot of TV news and a radio podcasts. I have noticed recently that sometimes I can understand almost everything and another time I can understand hardly what. I don't know what it depends on.
Do you have your effective way or any explanation how to deal with this matter?
Special accent, above average speed and unusual vocabulary usage can make it really hard to get the gist. I think it would be effective to hear the same sentence and sentence variations from different persons, but I think making such a big database would require too much efforts. But perhaps a site similar to fraze.it -but with auido would be great. I don't know perhaps there is one somewhere, I just haven't heard of it so far.
I almost forgot to mention, watching pronunciation related videos (like this below), helped me ..