For those of you getting an error message, it's most likely your mp3 file has a corrupted header. If you look at your codec information, it probably doesn't show up, and Naudio doesn't seem to be able to read the mp3 files that have bad headers. You'll need to either try to repair your mp3 file or get a better file that reads out the Codec, Bit rate, and Frequency in the metadata.
For those of you getting an error message, it's most likely your mp3 file has a corrupted header. If you look at your codec information, it probably doesn't show up, and Naudio doesn't seem to be able to read the mp3 files that have bad headers. You'll need to either try to repair your mp3 file or get a better file that reads out the Codec, Bit rate, and Frequency in the metadata.