possible fix of crashing audio device

modem/modem.py

@@ -135,13 +135,13 @@ class RF:
 
     def start_modem(self):
         if not TESTMODE and HamlibParam.hamlib_radiocontrol not in ["tci"]:
-            self.init_audio()
+            result = self.init_audio()
 
         elif not TESTMODE:
-            self.init_tci()
+            result = self.init_tci()
         else:
-            self.init_mkfifo()
-
+            result = self.init_mkfifo()
+        if result not in [False]:
             # init codec2 instances
             self.init_codec2()
 
@@ -154,6 +154,8 @@ class RF:
             # init decoding threads
             self.init_data_threads()
             atexit.register(self.stream.stop)
+        else:
+            return False
 
     def stop_modem(self):
         try:
@@ -167,7 +169,6 @@ class RF:
             self.log.error("[MDM] Error stopping modem", e=err)
 
     def init_audio(self):
-        try:
         self.log.info(f"[MDM] init: get audio devices", input_device=self.audio_input_device,
                       output_device=self.audio_output_device)
         try:
@@ -200,15 +201,15 @@ class RF:
                 blocksize=4800,
             )
             self.stream.start()
+            return True
 
 
 
         except Exception as audioerr:
             self.log.error("[MDM] init: starting pyaudio callback failed", e=audioerr)
-
-        except Exception as err:
-            self.log.warning("[MDM] init: can't open audio device. Stopping modem", e=err)
             self.stop_modem()
+            return False
+
 
     def init_tci(self):
         # placeholder area for processing audio via TCI

modem/service_manager.py

@@ -42,3 +42,4 @@ class SM:
                     del self.data_handler
                     self.modem = False
                     self.data_handler = False
+            threading.Event().wait(0.5)