def _map_variant(self, phonvariant):
"""
Map phonemes of only one variant of a phonetized entry.
@param phonvariant (str) One phonetization variant of an entry.
"""
phones = self._map_split_variant(phonvariant)
subs = []
# Single phonemes
for p in phones:
mapped = self._maptable.map_entry(p)
if len(mapped)>0:
subs.append( p+"|"+mapped )
else:
subs.append( p )
self._dagphon.variants = 0
phon = ToStrip( self._dagphon.decompose(" ".join(subs)) )
# Remove un-pronounced phonemes!!!
# By convention, they are represented by an underscore in the
# mapping table.
tmp = []
for p in phon.split('|'):
r = [ x for x in p.split("-") if x != "_" ]
tmp.append("-".join(r))
return "|".join(set(tmp))
def run_alignment(self, inputwav, outputalign, N=3):
"""
Execute the external program `julius` to align.
The data related to the unit to time-align need to be previously
fixed with:
- set_phones(str)
- set_tokens(str)
@param inputwav (str - IN) the audio input file name, of type PCM-WAV 16000 Hz, 16 bits
@param outputalign (str - OUT) the output file name
@param N (int) N value of N-grams, used only if SLM (i.e. outext=walign)
@return (str) A message of `julius`.
"""
outputalign = outputalign + "." + self._outext
basename = os.path.splitext(inputwav)[0]
if self._outext == "palign":
self.gen_grammar_dependencies(basename)
else:
self.gen_slm_dependencies(basename)
self.run_julius(inputwav, basename, outputalign)
with codecs.open(outputalign, 'r', encoding) as f:
lines = f.readlines()
errorlines = ""
message = ""
entries = []
for line in lines:
if line.find("Error: voca_load_htkdict")>-1 and line.find("not found")>-1:
line = ToStrip( line )
line = line[line.find('"')+1:]
line = line[:line.find('"')]
if len(line)>0:
entries = line.split()
if len(entries) > 0:
added = self.add_tiedlist(entries)
if len(added) > 0:
message = "The acoustic model was modified. The following entries were successfully added into the tiedlist: "
message = message + " ".join(added) + "\n"
self.run_julius(inputwav, basename, outputalign)
with codecs.open(outputalign, 'r', encoding) as f:
lines = f.readlines()
for line in lines:
if (line.startswith("Error:") or line.startswith("ERROR:")) and not " line " in line:
errorlines = errorlines + line
if "search failed" in line:
message = "Julius search has failed to find the transcription in the audio file of this unit."
errorlines = "Search error. "+ errorlines
if len(errorlines) > 0:
raise Exception(message + errorlines)
return message
def read(self, dirname):
"""
Read a list file (start-time end-time).
@param filename is the list file name.
@raise IOError
"""
filename = os.path.join( dirname, ListIO.DEFAULT_FILENAME )
with codecs.open(filename, 'r', encoding) as fp:
lines = fp.readlines()
_units = []
# Each line corresponds to a track,
# with a couple 'start end' of float values.
for line in lines:
line = ToStrip(line)
_tab = line.split()
if len(_tab) >= 2:
_units.append( (float(_tab[0]),float(_tab[1])) )
return _units
def get_phon_entry(self, entry):
"""
Return the phonetization of an entry.
Unknown entries are not automatically phonetized.
This is a pure dictionary-based method.
@param `entry` (str) The token to phonetize.
@return A string with the phonetization of `entry` or
the unknown symbol.
"""
entry = ToStrip(entry)
# Specific strings... for the italian transcription...
# For the participation at the CLIPS-Evalita 2011 campaign.
if entry.startswith(u"<") is True and entry.endswith(u">") is True:
entry = entry[1:-1]
# No entry! Nothing to do.
if len(entry) == 0:
return ""
# Specific strings used in the CID transcription...
# CID is Corpus of Interactional Data, http://sldr.org/sldr000720
if entry.startswith(u"gpd_") is True or entry.startswith(u"gpf_") is True:
return ""
# Specific strings used in SPPAS IPU segmentation...
if entry.find(u"ipu_")>-1:
return ""
# Find entry in the dict as it is given
_strphon = self._pdict.get_pron( entry )
# OK, the entry is properly phonetized.
if _strphon != self._pdict.unkstamp:
return self._map_phonentry( _strphon )
return self._pdict.unkstamp
def read_walign(self, filename):
"""
Read an alignment file in the standard format of Julius CSR engine.
@param filename (str - IN) The input file name.
@return Two lists of tuples:
- None
- (start-time end-time word score)
"""
tokens = [""]
scores = [0]
_wordalign = []
wordidx = -1
with codecs.open(filename, "r", encoding) as fp:
lines = fp.readlines()
for line in lines:
# Each line is either a new annotation or nothing interesting!
line = ToStrip(line)
if line.startswith("=== begin forced alignment ==="):
wordidx = 0
elif line.startswith("=== end forced alignment ==="):
wordidx = -1
elif line.startswith("wseq1:"):
line = line[6:]
# each token
tokens = line.split()
if len(tokens) == 0:
tokens = [""]
elif line.startswith("cmscore1:"):
line = line[9:]
# confidence score of the pronunciation of each token
scores = [float(s) for s in line.split()]
if len(scores) == 0:
scores = [0]
elif line.startswith("[") and wordidx > -1:
# New phonemes
line = line.replace("[", "")
line = line.replace("]", "")
line = ToStrip(line)
tab = line.split(" ")
# tab 0: first frame
# tab 1: last frame
# tab 2: score of the segmentation (log proba)
# tab 3: word
loc_s = float(tab[0]) / 100.0
loc_e = float(tab[1]) / 100.0
_wordalign.append([loc_s, loc_e, tokens[wordidx], scores[wordidx]])
wordidx = wordidx + 1
# Adjust time values
for wordidx in range(len(_wordalign)):
# Fix the end of this annotation to the begin of the next one.
loc_e = _wordalign[wordidx][1]
if wordidx < (len(_wordalign) - 1):
nextloc_s = _wordalign[wordidx + 1][0]
else:
nextloc_s = 0.0
if loc_e < nextloc_s:
loc_e = nextloc_s
_wordalign[wordidx][1] = loc_e
return (None, _wordalign)
def read_palign(self, filename):
"""
Read an alignment file in the standard format of Julius CSR engine.
@param filename (str - IN) The input file name.
@return Two lists of tuples:
- (start-time end-time phoneme score)
- (start-time end-time word score)
"""
_phonalign = []
_wordalign = []
phonidx = -1 # phoneme index
loc_s = 0.0 # phoneme start time
loc_e = 0.0 # phoneme end time
phonlist = []
wordseq = []
scores = [0]
tokens = [""]
with codecs.open(filename, "r", encoding) as fp:
lines = fp.readlines()
for line in lines:
# Each line is either a new annotation or nothing interesting!
line = ToStrip(line)
if line.startswith("=== begin forced alignment ==="):
phonidx = 0
elif line.startswith("=== end forced alignment ==="):
phonidx = -1
elif line.startswith("phseq1:"):
line = line[7:]
line = ToStrip(line)
wordseq = line.split("|")
# get indexes of each word
wordlist = []
_idx = -1
for w in wordseq:
_wrdphseq = w.strip().split()
_idx += len(_wrdphseq)
wordlist.append(_idx)
# get the list of phonemes (without word segmentation)
line = line.replace("|", "")
line = ToStrip(line)
phonlist = line.split()
elif line.startswith("cmscore1:"):
line = line[9:]
# confidence score of the pronunciation of each token
scores = [float(s) for s in line.split()]
if len(scores) == 0:
scores = [0]
elif line.startswith("sentence1:"):
line = line[10:]
# each token
tokens = line.split()
if len(tokens) == 0:
tokens = [""]
elif line.startswith("[") and phonidx > -1:
# New phonemes
line = line.replace("[", "")
line = line.replace("]", "")
line = ToStrip(line)
tab = line.split(" ")
# tab 0: first frame
# tab 1: last frame
# tab 2: score of the segmentation (log proba)
# tab 3: triphone used
loc_s = float(tab[0]) / 100.0
loc_e = float(tab[1]) / 100.0
if len(tab) > 3:
# Put real phoneme instead of triphones
_phonalign.append([loc_s, loc_e, phonlist[phonidx], tab[2]])
else:
_phonalign.append([loc_s, loc_e, "", tab[2]])
phonidx = phonidx + 1
# Adjust time values and create wordalign
wordidx = 0 # word index
wordloc_s = 0.0 # word start time
loc_e = 0.0
nextloc_s = 0.0
for phonidx in range(len(_phonalign)):
# Fix the end of this annotation to the begin of the next one.
loc_e = _phonalign[phonidx][1]
if phonidx < (len(_phonalign) - 1):
nextloc_s = _phonalign[phonidx + 1][0]
else:
nextloc_s = 0.0
if loc_e < nextloc_s:
loc_e = nextloc_s
_phonalign[phonidx][1] = loc_e
# Override the segmentation score of the phone by
# the score of the pronunciation of the word
_phonalign[phonidx][3] = scores[wordidx]
# add also the word?
if phonidx == wordlist[wordidx]:
_wordalign.append([wordloc_s, loc_e, tokens[wordidx], scores[wordidx]])
wordidx = wordidx + 1
wordloc_s = loc_e
# last word, or the only entry in case of empty interval...
if len(wordseq) - 1 == wordidx:
_wordalign.append([wordloc_s, loc_e, tokens[wordidx - 1], scores[wordidx - 1]])
return (_phonalign, _wordalign)