That intonation is perfect for someone who is lazily reading some totally random stuff on a random page on the internet, so let's forget about intonation and rhythm (it is unnatural, but several people read like morons if they don't concentrate).
<<"Stumbling", for instance, sounded more like "stahmbling", which is a U-sound that exists in no variety of American accent and immediately sounds like a foreign mistake.>>
I don't think the vowel in "stumbling" in itself was too weird at all, although I recognize she's probably not consistent in the vowels she chooses, and that one does sound close to others that are supposed to be distinct. I noticed she doesn't pronounce final -ing's as "eeng", so she can't have the Cali vowel shift.
Conclusion: if she's not a native speaker, she really fooled me anyway (I am not a native speaker but I am improving), and if she doesn't sound like a native speaker to the natives, it must be because of some unexpected features in the expected accent, and not because of the presence of non-native features (apart that "speesh"). That "ch --> sh" would be the only thing that could make me think of a non-native feature, but I am not sure. Maybe it's a speech defect or something I don't know. I hear "ak-sint" all the time, so I really couldn't take her pronunciation of "accent" as non-native. This guy seems to say "ak-sint" too (0:20 - ...when they try to do a New York aksint...)
http://www.youtube.com/watch?v=apyL9wBWvIk
I know she's probably a non-native speaker because she's the one who posted it and who is learning English, LOL... but... if you are not a native speaker, I would say your accent is excellent anyway. I guess less than 3% of learners would have an accent as good as that, or better.
<<"Stumbling", for instance, sounded more like "stahmbling", which is a U-sound that exists in no variety of American accent and immediately sounds like a foreign mistake.>>
I don't think the vowel in "stumbling" in itself was too weird at all, although I recognize she's probably not consistent in the vowels she chooses, and that one does sound close to others that are supposed to be distinct. I noticed she doesn't pronounce final -ing's as "eeng", so she can't have the Cali vowel shift.
Conclusion: if she's not a native speaker, she really fooled me anyway (I am not a native speaker but I am improving), and if she doesn't sound like a native speaker to the natives, it must be because of some unexpected features in the expected accent, and not because of the presence of non-native features (apart that "speesh"). That "ch --> sh" would be the only thing that could make me think of a non-native feature, but I am not sure. Maybe it's a speech defect or something I don't know. I hear "ak-sint" all the time, so I really couldn't take her pronunciation of "accent" as non-native. This guy seems to say "ak-sint" too (0:20 - ...when they try to do a New York aksint...)
http://www.youtube.com/watch?v=apyL9wBWvIk
I know she's probably a non-native speaker because she's the one who posted it and who is learning English, LOL... but... if you are not a native speaker, I would say your accent is excellent anyway. I guess less than 3% of learners would have an accent as good as that, or better.