File size: 3,872 Bytes
d5ee97c |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 |
#include "phonemizer.h"
#include <fstream>
#include "ext/ZCharScanner.h"
int32_t GetID(const std::vector<IdStr>& In, const std::string &InStr)
{
for (const IdStr& It : In)
if (It.STR == InStr)
return It.ID;
return -1;
}
std::string GetSTR(const std::vector<IdStr>& In, int32_t InID)
{
for (const IdStr& It : In)
if (It.ID == InID)
return It.STR;
return "";
}
std::vector<IdStr> Phonemizer::GetDelimitedFile(const std::string &InFname)
{
std::ifstream InFile (InFname);
int32_t CuID;
std::string Tok;
std::vector<IdStr> RetVec;
std::string Line;
while (std::getline(InFile, Line)) {
if (Line.find("\t") == std::string::npos)
continue;
ZStringDelimiter Deline(Line);
Deline.AddDelimiter("\t");
CuID = stoi(Deline[1]);
Tok = Deline[0];
RetVec.push_back(IdStr{CuID,Tok});
}
return RetVec;
}
void Phonemizer::LoadDictionary(const std::string &InDictFn)
{
std::ifstream InFile (InDictFn);
std::string Word;
std::string Phn;
if (Dictionary.size())
Dictionary.clear();
std::string Line;
while (std::getline(InFile, Line)) {
if (Line.find("\t") == std::string::npos)
continue;
ZStringDelimiter Deline(Line);
Deline.AddDelimiter("\t");
Word = Deline[0];
Phn = Deline[1];
Dictionary.push_back(StrStr{Word,Phn});
}
// Sort so lookup can be a bit optimized
std::sort(Dictionary.begin(),Dictionary.end());
}
std::string Phonemizer::DictLookup(const std::string &InWord)
{
for (size_t w = 0 ; w < Dictionary.size();w++)
{
const StrStr& Entr = Dictionary[w];
if (Entr.Word.size() != InWord.size())
continue;
if (Entr.Word == InWord)
return Entr.Phn;
}
return "";
}
Phonemizer::Phonemizer()
{
}
bool Phonemizer::Initialize(const std::string InPath)
{
// Load indices
try {
CharId = GetDelimitedFile(InPath + "/char2id.txt");
PhnId = GetDelimitedFile(InPath + "/phn2id.txt");
// Load model
G2pModel.Initialize(InPath + "/model");
LoadDictionary(InPath + "/dict.txt");
}
catch (...){
return false;
}
return true;
}
std::string Phonemizer::ProcessWord(const std::string &InWord,float Temperature)
{
// First we try dictionary lookup
// This is because the g2p model can be unreliable, we only want to use it for novel sentences
std::string PhnDict = DictLookup(InWord);
if (!PhnDict.empty())
return PhnDict;
std::vector<int32_t> InIndexes;
InIndexes.reserve(InWord.size());
// Turn word into indices
for (const char ch : InWord)
{
std::string Single(1,ch);
int32_t Idx = GetID(CharId,Single);
if (Idx != -1)
InIndexes.push_back(Idx);
}
TFTensor<int32_t> PhnPrediction = G2pModel.DoInference(InIndexes,Temperature);
std::string RetStr = "";
bool FirstIter = true;
for (int32_t PhnIdx : PhnPrediction.Data)
{
std::string PhnTxt = GetSTR(PhnId,PhnIdx);
if (!PhnTxt.empty())
{
if (!FirstIter)
RetStr.append(" ");
RetStr.append(PhnTxt);
}
FirstIter = false;
}
return RetStr;
}
std::string Phonemizer::GetPhnLanguage() const
{
return PhnLanguage;
}
void Phonemizer::SetPhnLanguage(const std::string &value)
{
PhnLanguage = value;
}
std::string Phonemizer::GetGraphemeChars()
{
std::string RetAllowed = "";
for (const IdStr& Idx : CharId)
RetAllowed.append(Idx.STR);
return RetAllowed;
}
bool operator<(const StrStr &right, const StrStr &left)
{
return right.Word.length() < left.Word.length();
}
|