fix: compare returned volume by regex

src/aura_engine/core/mixer.py

@@ -27,6 +27,7 @@ set of channels with their own control options.
 from __future__ import annotations
 
 import logging
+import re
 import time
 
 import confuse
@@ -432,8 +433,10 @@ class Mixer:
         playout_volume = str(int(volume) / 100)
         args = f"{channel.get_index()} {playout_volume}"
         message = self.client.exec(self.mixer_id, "volume", args)
-        if not message.find(f"volume={volume}%"):
-            msg = f"Error setting volume of channel {channel}: {message}"
+        search = re.search(r"volume=(\d+)", message).group(1)
+        actual_volume = int(search)
+        if actual_volume != volume:
+            msg = f"Error setting volume of channel {channel} to {volume}%: {message}"
             self.logger.error(SU.red(msg))
         else:
             self.update_channel_status(channel.index, message)