def extract_examples(relative_path='..\\..\\PreppedUIowa v1.1\\'):
"""
Opens all files from the given directory and subdirectories of the dataset.
Maps the examples of instruments to the name of the instrument.
Works only with PCM .wav files.
:param relative_path: Relative path to the directory containing all example files.
:return: An array of keys and an array of corresponding spectra. An array of all possible keys.
"""
i_keys = []
i_specs = []
keys = []
types = os.listdir(relative_path)
print types
print '~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
# For each type get instruments.
for t in types:
# Define filepath for reading data
i_path = os.path.join(relative_path, t)
instruments = os.listdir(i_path)
print ('\n' + t)
print '-------------------------------------------------------------------'
# For each instrument get files.
for i in instruments:
# Add to the key array.
keys.append(i)
# Define filepath for reading data
f_path = os.path.join(i_path, i)
files = os.listdir(f_path)
print('' + f_path)
# For each file of this instrument.
for f in files:
# Define filepath for reading data
s_path = os.path.join(f_path, f)
sound_file = of.open_wav(s_path, 0)
#print('\t> ' + f)
# Array of FvPs to be mapped to this instrument.
values = []
# Sliding window, 200 samples wide.
get_freqs(sound_file, values)
# Pair each value with instrument.
for v in values:
i_keys.append(i)
nv = np.array(v)
#nv = nv.reshape(nv.shape[0],1)
i_specs.append(nv)
print '\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
print '\nExtraction finished successfully!'
return i_keys, i_specs, keys
def askopenfilename(self):
"""Returns an opened file in read mode.
This time the dialog just returns a filename and the file is opened by your own code.
"""
# get filename
path = tkFileDialog.askopenfilename(**self.file_opt)
# open file on your own
if path:
self.results_text.delete('1.0', Tkinter.END)
results = ''
wav = op.open_wav(path, 0)
results = tst.test(wav, 1)
output = tst.prepare_output(path, results)
self.results_text.insert('1.0', output)
# For each type get instruments.
for t in types:
i_path = os.path.join(read_path, t)
instruments = os.listdir(i_path)
print t
#print instruments
print '-------------------------------------------------------------------'
#For each instrument get files.
for i in instruments:
f_path = os.path.join(i_path, i)
files = os.listdir(f_path)
m_path = os.path.join(f_path, 'mono')
os.mkdir(m_path)
print('\n' + f_path)
print '...................................................................'
#For each file
for f in files:
new_f = f.replace('stereo', 'mono')
if('Piano' in f):
new_f = f.replace('Piano', 'Piano.mono')
print(f + '\t\t->\t\t' + new_f)
s_path = os.path.join(f_path, f)
sound_file = of.open_wav(s_path, 0)
trim = ts.trim(sound_file)
sv.new_wav(trim, f_path, new_f)