Difference between revisions of "Meas formants"
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Revision as of 12:35, 8 October 2013
#!/usr/bin/env python
# Measure formants. Read input textgrids, call ifcformant on associated audio file,
# and output measurements to a .meas file.
Usage = 'meas_formants speaker file1.TextGrid [file2.TextGrid] ... [fileN.TextGrid]'
import audiolabel
import os, sys, subprocess
import re
import numpy as np
# Do minimal checking to ensure the script was called with appropriate
# arguments.
try:
if not (sys.argv[1] == 'male' or
sys.argv[1] == 'female' or
sys.argv[1] == 'child'): raise
sys.argv[2] != None
except:
raise Exception('Usage: ' + Usage)
# Regular expression used to identify vowels.
vre = re.compile(
"(?P<vowel>AA|AE|AH|AO|AW|AX|AXR|AY|EH|ER|EY|IH|IX|IY|OW|OY|UH|UW|UX)(?P<stress>\d)?"
)
# The output header line.
head = '\t'.join(('t1 t2 lintime ifctime idx vowel stress \
rms f1 f2 f3 f4 f0 word context'
).split()) + '\n'
# Format string used for output.
fmt = '\t'.join(["{t1:0.4f}", "{t2:0.4f}", "{lintime:0.4f}", "{ifctime:0.4f}",
"{idx:d}", "{vowel}", "{stress}", "{rms}", "{f1}", "{f2}",
"{f3}", "{f4}", "{f0}", "{word}", "{context}\n"
])
# Name to use for ifcformant output file.
tempifc = '__temp.ifc'
speaker = sys.argv[1]
ifc_args = ['ifcformant',
'--speaker=' + speaker,
'-e', 'gain -n -3 sinc -t 10 60 contrast',
'--print-header',
'--output=' + tempifc]
# Loop over all the input files specified on the command line.
for tg in sys.argv[2:]:
fname = os.path.splitext(tg)[0] # get filename without extension
with open(fname + '.meas', 'w') as out:
# Praat LabelManager.
pm = audiolabel.LabelManager(fromFile=tg, fromType='praat')
# Create ifcformant results and read into ifc LabelManager.
proc = subprocess.Popen(ifc_args + [fname + '.wav'], stderr=subprocess.PIPE)
proc.wait()
if proc.returncode != 0:
for line in proc.stderr:
sys.stderr.write(line + '\n')
raise Exception("ifcformant exited with status: {0}".format(proc.returncode))
#ifc = audiolabel.LabelManager(fromFile=tempifc, fromType='ifcformant')
ifc = audiolabel.LabelManager(fromFile=tempifc, fromType='table', t1Col='sec')
out.write(head)
# Loop over all the vowel labels in the tier named 'phone'.
for v, m in pm.tier('phone').search(vre, returnMatch=True):
if v.duration() > 1 and v.t1() != 0:
continue
# Safer to use center of a label as reference point than an edge.
word = pm.tier('word').labelAt(v.center())
context = pm.tier('context').labelAt(v.center())
# Take measurements at start and end of vowel and at five
# equally-spaced intervals in between them.
for idx, t in enumerate(np.linspace(v.t1(), v.t2(), num=7)):
meas = ifc.labelsAt(t)
out.write(fmt.format(t1=v.t1(), t2=v.t2(), lintime=t, ifctime=meas.f1.t1(),
idx=idx, vowel=m.group('vowel'), stress=m.group('stress'),
rms=meas.rms.text, f1=meas.f1.text,
f2=meas.f2.text, f3=meas.f3.text, f4=meas.f4.text,
f0=meas.f0.text, word=word.text,
context=context.text)
)
os.unlink(tempifc)
