def utt_mceps(utt, shift=0.005, remove_pau=False, resettimes=False):
temppath = mkdtemp()
#wavs
wfn1 = os.path.join(temppath, "1." + WAV_EXT)
utt["waveform"].write(wfn1)
#feats
ffn1 = os.path.join(temppath, "1." + FEAT_EXT)
cmds = SIG2FV % {"inputfile": wfn1,
"outputfile": ffn1,
"shift": shift}
#print(cmds)
os.system(cmds)
#tracks
t1 = Track()
t1.load_track(ffn1)
#cleanup
shutil.rmtree(temppath)
keep_intervals = []
if remove_pau:
u = deepcopy(utt)
fill_startendtimes(u)
for seg in u.gr("Segment"):
if seg["name"] != "pau":
keep_intervals.append((seg["start"], seg["end"]))
indices = t1.mask_indices(keep_intervals)
t1.times = t1.times[indices]
t1.values = t1.values[indices]
if resettimes:
t1.times = np.arange(1, len(t1.times) + 1, dtype=np.float) * shift
return t1
