function [x, fs, frameLength, noOfFrames] = openFile( currentSampleName )
    
    [ x, fs ] =  wavread(['../' currentSampleName]);
    frameLength = 2^(ceil(log2(fs/100)));
    noOfFrames = floor( length(x) / frameLength); %skip the final samples if necessary

    % Convert stereo to mono
    if (size(x, 2)==2)
        x = mean(x')';
    end