add audio test python

testAudio.js

@@ -1,21 +1,113 @@
 const fs = require('fs');
+// const portAudio = require('naudiodon');
+// Imports the Google Cloud client library
+const speech = require('@google-cloud/speech');
 const portAudio = require('naudiodon');
 
-// Create an instance of AudioIO with outOptions (defaults are as below), which will return a WritableStream
-const ao = new portAudio.AudioIO({
-  outOptions: {
-    channelCount: 2,
-    sampleFormat: portAudio.SampleFormat16Bit,
-    sampleRate: 48000,
-    deviceId: -1, // Use -1 or omit the deviceId to select the default device
-    closeOnError: true // Close the stream if an audio error is detected, if set false then just log the error
-  }
-});
-
 // Create a stream to pipe into the AudioOutput
 // Note that this does not strip the WAV header so a click will be heard at the beginning
 const rs = fs.createReadStream('rawAudio.wav');
-
+const WebSocket = require("ws")
 // Start piping data and start streaming
-rs.pipe(ao);
-ao.start();
+const {Writable} = require('stream');
+const ws = new WebSocket("ws://localhost:8080");
+//const duplex = WebSocket.createWebSocketStream(ws, { encoding: 'binary' });
+
+let audioChunks = [];
+const audioInputStreamTransform = new Writable({
+  write(chunk, encoding, next) {
+    // console.log(chunk)
+    // ws send chunk
+    audioChunks.push(chunk);
+    next();
+  },
+
+  final() {
+    console.log(audioChunks)
+    ws.send(audioChunks)
+    // stop ws transer
+  },
+});
+
+
+// Creates a client
+const client = new speech.SpeechClient();
+
+/**
+ * TODO(developer): Uncomment the following lines before running the sample.
+ */
+const filename = './rawAudio.wav';
+const encoding = 'LINEAR16';
+const sampleRateHertz = 16000;
+const languageCode = 'en-US';
+
+const config = {
+  encoding: encoding,
+  sampleRateHertz: sampleRateHertz,
+  languageCode: languageCode,
+};
+const audio = {
+  content: fs.readFileSync(filename).toString('base64'),
+};
+
+// const request = {
+//   config: config,
+//   audio: audio,
+// };
+
+// Detects speech in the audio file
+async function test() {
+  const [response] = await client.recognize(request);
+  const transcription = response.results
+    .map(result => result.alternatives[0].transcript)
+    .join('\n');
+  console.log('Transcription: ', transcription);
+}
+
+// test();
+
+const request = {
+  config,
+  interimResults: true,
+};
+
+const speechCallback = (data) => {
+  console.log(
+      `Transcription: ${data.results[0].alternatives[0].transcript}`
+    )
+}
+
+const recognizeStream = client
+.streamingRecognize(request)
+.on('error', err => {
+  if (err.code === 11) {
+    // restartStream();
+  } else {
+    console.error('API request error ' + err);
+  }
+})
+.on('data', speechCallback);
+
+// Create an instance of AudioIO with inOptions (defaults are as below), which will return a ReadableStream
+const audioOptions = {
+  channelCount: 2,
+  sampleFormat: portAudio.sampleFormat16Bit,
+  sampleRate: 16000,
+  deviceId: -1, // Use -1 or omit the deviceId to select the default device
+  closeOnError: false // Close the stream if an audio error is detected, if set false then just log the error
+}
+
+let audioData = [];
+const ai = new portAudio.AudioIO({
+  inOptions: audioOptions
+});
+// ai.on('data', (d) => {
+//   audioData.push(d.toString('binary'))
+// })
+ai.pipe(audioInputStreamTransform)
+ai.start();
+setTimeout(() => {
+  ai.quit();
+}, 2000)
+
+