File size: 6,018 Bytes
1dafe20
0388dc0
1dafe20
0388dc0
1dafe20
 
 
0388dc0
1dafe20
 
0388dc0
1dafe20
 
 
0388dc0
 
 
 
 
1dafe20
0388dc0
1dafe20
0388dc0
1dafe20
0388dc0
 
1dafe20
 
0388dc0
1dafe20
 
0388dc0
1dafe20
 
0388dc0
1dafe20
 
0388dc0
1dafe20
 
 
0388dc0
1dafe20
 
0388dc0
1dafe20
 
0388dc0
1dafe20
 
0388dc0
1dafe20
 
0388dc0
 
 
1dafe20
 
 
 
 
 
0388dc0
 
 
1dafe20
0388dc0
 
1dafe20
 
0388dc0
1dafe20
 
0388dc0
1dafe20
 
0388dc0
1dafe20
 
0388dc0
 
 
 
1dafe20
 
 
 
 
 
0388dc0
 
 
 
 
1dafe20
 
0388dc0
1dafe20
 
0388dc0
 
 
 
1dafe20
 
0388dc0
1dafe20
 
 
 
 
 
 
0388dc0
 
 
 
1dafe20
0388dc0
1dafe20
 
0388dc0
 
 
1dafe20
 
 
0388dc0
1dafe20
 
 
 
 
 
 
 
 
0388dc0
 
 
1dafe20
0388dc0
1dafe20
 
0388dc0
 
1dafe20
0388dc0
 
1dafe20
0388dc0
1dafe20
 
0388dc0
1dafe20
 
0388dc0
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1dafe20
 
0388dc0
 
1dafe20
 
 
 
 
 
 
 
0388dc0
1dafe20
 
 
 
 
 
 
 
 
 
 
0388dc0
 
 
 
 
 
 
 
 
 
 
 
1dafe20
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

function freeConfig(config, Module) {
  if ('buffer' in config) {
    Module._free(config.buffer);
  }

  if ('config' in config) {
    freeConfig(config.config, Module)
  }

  Module._free(config.ptr);
}

// The user should free the returned pointers
function initSherpaOnnxOfflineTtsVitsModelConfig(config, Module) {
  const modelLen = Module.lengthBytesUTF8(config.model) + 1;
  const lexiconLen = Module.lengthBytesUTF8(config.lexicon) + 1;
  const tokensLen = Module.lengthBytesUTF8(config.tokens) + 1;
  const dataDirLen = Module.lengthBytesUTF8(config.dataDir) + 1;

  const n = modelLen + lexiconLen + tokensLen + dataDirLen;

  const buffer = Module._malloc(n);

  const len = 7 * 4;
  const ptr = Module._malloc(len);

  let offset = 0;
  Module.stringToUTF8(config.model, buffer + offset, modelLen);
  offset += modelLen;

  Module.stringToUTF8(config.lexicon, buffer + offset, lexiconLen);
  offset += lexiconLen;

  Module.stringToUTF8(config.tokens, buffer + offset, tokensLen);
  offset += tokensLen;

  Module.stringToUTF8(config.dataDir, buffer + offset, dataDirLen);
  offset += dataDirLen;

  offset = 0;
  Module.setValue(ptr, buffer + offset, 'i8*');
  offset += modelLen;

  Module.setValue(ptr + 4, buffer + offset, 'i8*');
  offset += lexiconLen;

  Module.setValue(ptr + 8, buffer + offset, 'i8*');
  offset += tokensLen;

  Module.setValue(ptr + 12, buffer + offset, 'i8*');
  offset += dataDirLen;

  Module.setValue(ptr + 16, config.noiseScale, 'float');
  Module.setValue(ptr + 20, config.noiseScaleW, 'float');
  Module.setValue(ptr + 24, config.lengthScale, 'float');

  return {
    buffer: buffer, ptr: ptr, len: len,
  }
}

function initSherpaOnnxOfflineTtsModelConfig(config, Module) {
  const vitsModelConfig = initSherpaOnnxOfflineTtsVitsModelConfig(
      config.offlineTtsVitsModelConfig, Module);

  const len = vitsModelConfig.len + 3 * 4;
  const ptr = Module._malloc(len);

  let offset = 0;
  Module._CopyHeap(vitsModelConfig.ptr, vitsModelConfig.len, ptr + offset);
  offset += vitsModelConfig.len;

  Module.setValue(ptr + offset, config.numThreads, 'i32');
  offset += 4;

  Module.setValue(ptr + offset, config.debug, 'i32');
  offset += 4;

  const providerLen = Module.lengthBytesUTF8(config.provider) + 1;
  const buffer = Module._malloc(providerLen);
  Module.stringToUTF8(config.provider, buffer, providerLen);
  Module.setValue(ptr + offset, buffer, 'i8*');

  return {
    buffer: buffer, ptr: ptr, len: len, config: vitsModelConfig,
  }
}

function initSherpaOnnxOfflineTtsConfig(config, Module) {
  const modelConfig =
      initSherpaOnnxOfflineTtsModelConfig(config.offlineTtsModelConfig, Module);
  const len = modelConfig.len + 2 * 4;
  const ptr = Module._malloc(len);

  let offset = 0;
  Module._CopyHeap(modelConfig.ptr, modelConfig.len, ptr + offset);
  offset += modelConfig.len;

  const ruleFstsLen = Module.lengthBytesUTF8(config.ruleFsts) + 1;
  const buffer = Module._malloc(ruleFstsLen);
  Module.stringToUTF8(config.ruleFsts, buffer, ruleFstsLen);
  Module.setValue(ptr + offset, buffer, 'i8*');
  offset += 4;

  Module.setValue(ptr + offset, config.maxNumSentences, 'i32');

  return {
    buffer: buffer, ptr: ptr, len: len, config: modelConfig,
  }
}

class OfflineTts {
  constructor(configObj, Module) {
    console.log(configObj)
    const config = initSherpaOnnxOfflineTtsConfig(configObj, Module)
    const handle = Module._SherpaOnnxCreateOfflineTts(config.ptr);

    freeConfig(config, Module);

    this.handle = handle;
    this.sampleRate = Module._SherpaOnnxOfflineTtsSampleRate(this.handle);
    this.numSpeakers = Module._SherpaOnnxOfflineTtsNumSpeakers(this.handle);
    this.Module = Module
  }

  free() {
    this.Module._SherpaOnnxDestroyOfflineTts(this.handle);
    this.handle = 0
  }

  // {
  //   text: "hello",
  //   sid: 1,
  //   speed: 1.0
  // }
  generate(config) {
    const textLen = this.Module.lengthBytesUTF8(config.text) + 1;
    const textPtr = this.Module._malloc(textLen);
    this.Module.stringToUTF8(config.text, textPtr, textLen);

    const h = this.Module._SherpaOnnxOfflineTtsGenerate(
        this.handle, textPtr, config.sid, config.speed);

    const numSamples = this.Module.HEAP32[h / 4 + 1];
    const sampleRate = this.Module.HEAP32[h / 4 + 2];

    const samplesPtr = this.Module.HEAP32[h / 4] / 4;
    const samples = new Float32Array(numSamples);
    for (let i = 0; i < numSamples; i++) {
      samples[i] = this.Module.HEAPF32[samplesPtr + i];
    }

    this.Module._SherpaOnnxDestroyOfflineTtsGeneratedAudio(h);
    return {samples: samples, sampleRate: sampleRate};
  }
  save(filename, audio) {
    const samples = audio.samples;
    const sampleRate = audio.sampleRate;
    const ptr = this.Module._malloc(samples.length * 4);
    for (let i = 0; i < samples.length; i++) {
      this.Module.HEAPF32[ptr / 4 + i] = samples[i];
    }

    const filenameLen = this.Module.lengthBytesUTF8(filename) + 1;
    const buffer = this.Module._malloc(filenameLen);
    this.Module.stringToUTF8(filename, buffer, filenameLen);
    this.Module._SherpaOnnxWriteWave(ptr, samples.length, sampleRate, buffer);
    this.Module._free(buffer);
    this.Module._free(ptr);
  }
}

function createOfflineTts(Module, myConfig) {
  const offlineTtsVitsModelConfig = {
    model: './model.onnx',
    lexicon: '',
    tokens: './tokens.txt',
    dataDir: './espeak-ng-data',
    noiseScale: 0.667,
    noiseScaleW: 0.8,
    lengthScale: 1.0,
  };
  const offlineTtsModelConfig = {
    offlineTtsVitsModelConfig: offlineTtsVitsModelConfig,
    numThreads: 1,
    debug: 1,
    provider: 'cpu',
  };
  let offlineTtsConfig = {
    offlineTtsModelConfig: offlineTtsModelConfig,
    ruleFsts: '',
    maxNumSentences: 1,
  }

  if (myConfig) {
    offlineTtsConfig = myConfig;
  }

  return new OfflineTts(offlineTtsConfig, Module);
}

if (typeof process == 'object' && typeof process.versions == 'object' &&
    typeof process.versions.node == 'string') {
  module.exports = {
    createOfflineTts,
  };
}