update model

sherpa-onnx-tts.js

@@ -610,6 +610,14 @@ function createOfflineTts(Module, myConfig) {
       matcha.tokens = './tokens.txt';
       ruleFsts = './phone.fst,./date.fst,./number.fst';
       break;
+    case 3:
+      // matcha en
+      // https://k2-fsa.github.io/sherpa/onnx/tts/all/English/matcha-icefall-en_US-ljspeech.html
+      matcha.acousticModel = './model-steps-3.onnx';
+      matcha.vocoder = './vocos-22khz-univ.onnx';
+      matcha.tokens = './tokens.txt';
+      matcha.dataDir = './espeak-ng-data';
+      break;
   }
 
   const offlineTtsModelConfig = {