diff --git a/model.py b/model.py
index 4b371f0b..121bf8d4 100644
--- a/model.py
+++ b/model.py
@@ -280,7 +280,7 @@ class Model:
         return False
 
     def startMicTranscript(self, fnc):
-        if config.CHOICE_MIC_HOST == "None" or config.CHOICE_MIC_DEVICE == "None":
+        if config.CHOICE_MIC_HOST == "NoDevice" or config.CHOICE_MIC_DEVICE == "NoDevice":
             return
 
         mic_audio_queue = Queue()
@@ -324,7 +324,7 @@ class Model:
             self.mic_audio_recorder = None
 
     def startCheckMicEnergy(self, fnc):
-        if config.CHOICE_MIC_HOST == "None" or config.CHOICE_MIC_DEVICE == "None":
+        if config.CHOICE_MIC_HOST == "NoDevice" or config.CHOICE_MIC_DEVICE == "NoDevice":
             return
 
         def sendMicEnergy():
@@ -353,7 +353,7 @@ class Model:
             self.mic_energy_recorder = None
 
     def startSpeakerTranscript(self, fnc):
-        if config.CHOICE_SPEAKER_DEVICE == "None":
+        if config.CHOICE_SPEAKER_DEVICE == "NoDevice":
             return
         spk_audio_queue = Queue()
         spk_device = [device for device in getOutputDevices() if device["name"] == config.CHOICE_SPEAKER_DEVICE][0]
@@ -397,7 +397,7 @@ class Model:
             self.spk_audio_recorder = None
 
     def startCheckSpeakerEnergy(self, fnc):
-        if config.CHOICE_SPEAKER_DEVICE == "None":
+        if config.CHOICE_SPEAKER_DEVICE == "NoDevice":
             return
 
         def sendSpeakerEnergy():
diff --git a/models/transcription/transcription_utils.py b/models/transcription/transcription_utils.py
index 522cb7a2..fead4fc4 100644
--- a/models/transcription/transcription_utils.py
+++ b/models/transcription/transcription_utils.py
@@ -13,7 +13,7 @@ def getInputDevices():
                     else:
                         devices[host["name"]] = [device]
     if len(devices) == 0:
-        devices = {"None": [{"name": "None"}]}
+        devices = {"NoHost": [{"name": "NoDevice"}]}
     return devices
 
 def getOutputDevices():
@@ -24,7 +24,7 @@ def getOutputDevices():
             if device["hostApi"] == wasapi_info["index"] and device["isLoopbackDevice"] is True:
                 devices.append(device)
     if len(devices) == 0:
-        devices = [{'name':"None"}]
+        devices = [{'name':"NoDevice"}]
     return devices
 
 def getDefaultInputDevice():
@@ -38,7 +38,7 @@ def getDefaultInputDevice():
                 device = p.get_device_info_by_host_api_device_index(host_index, device_index)
                 if device["index"] == defaultInputDevice:
                     return {"host": host, "device": device}
-    return {"host": {"name": "None"}, "device": {"name": "None"}}
+    return {"host": {"name": "NoHost"}, "device": {"name": "NoDevice"}}
 
 def getDefaultOutputDevice():
     with PyAudio() as p:
@@ -55,4 +55,4 @@ def getDefaultOutputDevice():
                             if default_speakers["name"] in loopback["name"]:
                                 default_device = loopback
                                 return default_device
-    return {"name":"None"}
\ No newline at end of file
+    return {"name":"NoDevice"}
\ No newline at end of file