Covers80 dataset is .mp3 files, not .wav files, and organized differently than you expect

[alanngnet]

Your current code is not capable of ingesting the covers80 dataset as published at http://labrosa.ee.columbia.edu/projects/coversongs/covers80/ because:
a) The covers80 files are .mp3 files, and your code is expecting .wav files, as detailed in your dataset.txt file. This leads to sox crashing with this message in the sox.log output file: "sox FAIL formats: can't open input file `data/covers80/wav_16k/en_vogue+Funky_Divas+09-Yesterday.wav': No such file or directory"
b) The covers80 files are presented in a different folder structure and name than your code expects: covers80 presents its mp3 files in subfolders organized by song title and all of those within a parent folder named "covers32k" whereas your code, as detailed in your dataset.txt file, expects them to be in a single folder named "wav_16k".

[alanngnet]

Probably also relevant: The README.md file is missing instructions about the path where the code expects to find the Covers80 dataset, and whether you expect the user to manipulate the Covers80 dataset in some particular way before placing it at that undocumented path location.

[alanngnet]

Here's my workaround (or the missing documentation that belongs in README.md) :

1. Download and extract the contents of the covers80.tgz file
2. Convert all the provided .mp3 files to .wav format.
3. Move all the converted .wav files to a new folder called "wav_16k" in the project "data/covers80" folder. Abandon the 2-level folder structure that came inside the covers80.tgz file, flattening so all the .wav files are in the same "wav_16k" folder.

Use your favorite OS scripting commands to accomplish the above, presumably most people trying this being equipped to use sox to do the mp3>wav conversion.