#16-Adding speech recognition

alfred/speech_recognition/_speech_recognition.py

@@ -0,0 +1,22 @@
+import speech_recognition as sr
+
+class SpeechRecognition():
+    def __init__(self):
+        self.r = sr.Recognizer()
+        self.m = sr.Microphone()
+
+    def listen(self):
+        try:
+            with self.m as source: self.r.adjust_for_ambient_noise(source)
+            with self.m as source: self.audio = self.r.listen(source)
+            message = self.r.recognize_google(self.audio)
+            print("Google Speech Recognition thinks you said " + message)
+            return message
+            m.__exit__()
+            r.__exit__()
+        except sr.UnknownValueError:
+            #print("Google Speech Recognition could not understand audio")
+            return ''
+        except sr.RequestError as e:
+            #print("Could not request results from Google Speech Recognition service; {0}".format(e))
+            return ''

alfred/views/main_widget.py

@@ -8,6 +8,7 @@
 from alfred import data_rc
 import alfred.alfred_globals as ag
 
+from alfred.speech_recognition._speech_recognition import SpeechRecognition
 
 class MainWidget(QDialog, Ui_Dialog):
     text_changed = pyqtSignal('QString')
@@ -22,23 +23,38 @@ def __init__(self, bridge_obj):
         self.last_text = ''
         self.lineEdit.returnPressed.connect(self.send_text)
 
+        self.mic.clicked.connect(self.listen)
+
         self.channel = QWebChannel(self.webView.page())
         self.webView.page().setWebChannel(self.channel)
 
         self.channel.registerObject("web_bridge", bridge_obj)
 
+
     @pyqtSlot()
     def send_text(self):
         msg = self.lineEdit.text()
         if msg != '' and self.last_text != msg:
             self.text_changed.emit(msg)
             self.last_text = msg
 
+    @pyqtSlot()
+    def listen(self):
+        print ('start voice listening') ##Debug
+        self.lineEdit.clear()
+        self.lineEdit.setPlaceholderText("Start speaking, I am listening...")
+        s = SpeechRecognition()
+        msg = s.listen()
+        if msg == '':
+            print("Didn't hear it!!")
+        print (msg) ##Debug
+        self.lineEdit.setText(msg)
+        self.send_text()
+
     @pyqtSlot(list)
     def set_view(self, components):
         temp = ag.main_components_env.get_template("base.html")
         html = temp.render(componenets=components)
-        # print(html)
         self.webView.page().setHtml(html)
 
     @pyqtSlot(str)

alfred/views/ui/widget_ui.py

@@ -3,7 +3,7 @@
 
 # PyQt imports
 from PyQt5 import QtCore, QtWidgets, QtWebEngineWidgets
-from PyQt5.QtWidgets import QVBoxLayout, QHBoxLayout, QWidget
+from PyQt5.QtWidgets import QVBoxLayout, QHBoxLayout, QWidget, QPushButton
 from PyQt5.QtWebEngineWidgets import QWebEngineView, QWebEngineSettings
 from PyQt5.QtCore import QUrl, QMetaObject, QRect, QFileInfo
 
@@ -64,8 +64,12 @@ def setupUi(self, Dialog):
         self.lineEdit.setCursorMoveStyle(QtCore.Qt.VisualMoveStyle)
         self.lineEdit.setObjectName("lineEdit")
 
+        self.mic = QPushButton('mic')
+        self.mic.setAutoDefault(False)
+
         self.horizontalLayout.addWidget(self.bot_status_icon)
         self.horizontalLayout.addWidget(self.lineEdit)
+        self.horizontalLayout.addWidget(self.mic)
 
         self.verticalLayout_2.addLayout(self.horizontalLayout)