wav_to_audio custom function is not working - matlab

Question

At my wit's end. This program used to work for me, but now for some reason I keep getting that I cannot open the file. (Was using the same file before and no problem). I tried to just switch to wavread only and it worked but it added all sorts of complications for me to debug throughout the rest of my program, so I'd really like to get wav_to_audio working again.
The error message is
Error using wavread (line 70) Invalid Wave File. Reason: Cannot open file.
Error in wav_to_audio (line 108) [f_audio,fs,nbits] = wavread(strcat(dirAbs,dirRel,wavfilename));
Error in test_TempogramToolbox (line 61) [audio,sideinfo] = wav_to_audio('',dirWav,filename);
Here is the matlab code:
clear close all
dirWav = 'data_wav/';
filename = 'Debussy_SonataViolinPianoGMinor-02_111_20080519-SMD-ss135-189.wav';
% filename = '110-130bpm_click.wav';
% filename = 'Faure_Op015-01_126_20100612-SMD-0-12.wav';
% filename = 'Poulenc_Valse_114_20100518-SMD-0-15.wav';
% filename = 'Schumann_Op015-03_113_20080115-SMD-0-13.wav';
%% load wav file, automatically converted to Fs = 22050 and mono
[audio,sideinfo] = wav_to_audio('',dirWav,filename); Fs = sideinfo.wav.fs;
%% wav_to_audio function
if parameter.message == 1
fprintf('wav_to_audio: processing %s, ',wavfilename);
end
[pathstr,name,ext] = fileparts(wavfilename);
if strcmp(ext,'.wav')
[f_audio,fs,nbits] = wavread(strcat(dirAbs,dirRel,wavfilename));
else
error(['Unknown file format ' ext]);
end
bConverted_to_mono = 0;
if parameter.convertToMono
if size(f_audio,2)>1
bConverted_to_mono = 1;
if parameter.message == 1
fprintf('converting to mono, ');
end
switch parameter.monoConvertMode
case 'leftmost_channel'
f_audio= f_audio(:,1);
case 'rightmost_channel'
f_audio= f_audio(:,size(f_audio,2));
case 'downmix' % pay attention to energy loss due to differences in phase
% when using this method. This is often the case for bad
% stereo mixes
nChannels = size(f_audio,2);
f_audio = sum(f_audio,2);
f_audio = f_audio / nChannels;
otherwise
disp('wav_to_audio: monoConvertMode : Unknown method')
end
end
end
bResampled = 0;
if parameter.useResampling
if (fs ~= parameter.destSamplerate)
bResampled = 1;
if parameter.message == 1
fprintf('Resampling to %d, ', parameter.destSamplerate);
end
f_audio = resample (f_audio,parameter.destSamplerate,fs,100);
fs = parameter.destSamplerate;
end
end
%% Update sideinfo
sideinfo.wav.version = 1;
sideinfo.wav.filename = wavfilename;
sideinfo.wav.dirRel = dirRel;
sideinfo.wav.size = size(f_audio,1);
sideinfo.wav.duration = (sideinfo.wav.size-1)/fs;
sideinfo.wav.energy = sum(f_audio.^2);
sideinfo.wav.fs = fs;
sideinfo.wav.nbits = nbits;
sideinfo.wav.channels = size(f_audio,2);
sideinfo.wav.resampled = bResampled;
sideinfo.wav.monoConverted = bConverted_to_mono;
if bConverted_to_mono
sideinfo.wav.monoConvertMode = parameter.monoConvertMode;
else
sideinfo.wav.monoConvertMode = 'none';
end
%% Saving data
if parameter.save == 1
if parameter.message == 1
fprintf('Saving to file, ');
end
filename = strcat(parameter.saveFilename,'_audio');
save(strcat(parameter.saveDir,filename),'f_audio','sideinfo');
end
if parameter.message == 1
fprintf('Done\n');
end
%% Visualization
if parameter.vis
figure;
for k=1:sideinfo.wav.channels
if sideinfo.wav.channels > 1
subplot(sideinfo.wav.channels,1,k);
end
plot( [0:sideinfo.wav.size-1] / sideinfo.wav.fs , f_audio(:,k));
axis tight;
end
end
end