diff --git a/homeassistant/components/sonos/select.py b/homeassistant/components/sonos/select.py
index 052a1d879676..0a56e37e75c0 100644
--- a/homeassistant/components/sonos/select.py
+++ b/homeassistant/components/sonos/select.py
@@ -61,8 +61,15 @@ async def async_setup_entry(
                 if (
                     state := getattr(speaker.soco, select_data.soco_attribute, None)
                 ) is not None:
-                    setattr(speaker, select_data.speaker_attribute, state)
-                    features.append(select_data)
+                    try:
+                        setattr(speaker, select_data.speaker_attribute, int(state))
+                        features.append(select_data)
+                    except ValueError:
+                        _LOGGER.error(
+                            "Invalid value for %s %s",
+                            select_data.speaker_attribute,
+                            state,
+                        )
         return features
 
     async def _async_create_entities(speaker: SonosSpeaker) -> None:
diff --git a/homeassistant/components/sonos/speaker.py b/homeassistant/components/sonos/speaker.py
index 427f02f04798..acf1b08cd36e 100644
--- a/homeassistant/components/sonos/speaker.py
+++ b/homeassistant/components/sonos/speaker.py
@@ -599,7 +599,12 @@ class SonosSpeaker:
 
         for enum_var in (ATTR_DIALOG_LEVEL,):
             if enum_var in variables:
-                setattr(self, f"{enum_var}_enum", variables[enum_var])
+                try:
+                    setattr(self, f"{enum_var}_enum", int(variables[enum_var]))
+                except ValueError:
+                    _LOGGER.error(
+                        "Invalid value for %s %s", enum_var, variables[enum_var]
+                    )
 
         self.async_write_entity_states()
 
diff --git a/tests/components/sonos/test_select.py b/tests/components/sonos/test_select.py
index ada48de21f39..dbbf28a52d74 100644
--- a/tests/components/sonos/test_select.py
+++ b/tests/components/sonos/test_select.py
@@ -38,9 +38,9 @@ async def platform_binary_sensor_fixture():
     [
         (0, "off"),
         (1, "low"),
-        (2, "medium"),
-        (3, "high"),
-        (4, "max"),
+        ("2", "medium"),
+        ("3", "high"),
+        ("4", "max"),
     ],
 )
 async def test_select_dialog_level(
@@ -49,7 +49,7 @@ async def test_select_dialog_level(
     soco,
     entity_registry: er.EntityRegistry,
     speaker_info: dict[str, str],
-    level: int,
+    level: int | str,
     result: str,
 ) -> None:
     """Test dialog level select entity."""