Add streaming CTC ASR APIs for node-addon-api (#867)

nodejs-addon-examples/test_asr_streaming_transducer_microphone.js

@@ -25,7 +25,6 @@ function createOnlineRecognizer() {
       'numThreads': 2,
       'provider': 'cpu',
       'debug': 1,
-      'modelType': 'zipformer',
     },
     'decodingMethod': 'greedy_search',
     'maxActivePaths': 4,
@@ -68,7 +67,7 @@ ai.on('data', data => {
   }
 
   const isEndpoint = recognizer.isEndpoint(stream);
-  const text = recognizer.getResult(stream).text;
+  const text = recognizer.getResult(stream).text.toLowerCase();
 
   if (text.length > 0 && lastText != text) {
     lastText = text;