Final batch of code stability updates before anouther bout of extended testing. Still plenty to go, but making progress.

src/fenrirscreenreader/soundDriver/genericDriver.py

@@ -62,6 +62,18 @@ class driver(soundDriver):
             return
         if self.soundType == 'file':
             self.proc.kill()
+            try:
+                self.proc.wait(timeout=1.0)  # Wait for process to finish to prevent zombies
+            except subprocess.TimeoutExpired:
+                pass  # Process already terminated
+            except Exception as e:
+                pass  # Handle any other wait errors
         if self.soundType == 'frequence':
             self.proc.kill()
+            try:
+                self.proc.wait(timeout=1.0)  # Wait for process to finish to prevent zombies
+            except subprocess.TimeoutExpired:
+                pass  # Process already terminated
+            except Exception as e:
+                pass  # Handle any other wait errors
         self.soundType = ''