diff --git a/frigate/events/audio.py b/frigate/events/audio.py
index 76bfd5fa8..a48061091 100644
--- a/frigate/events/audio.py
+++ b/frigate/events/audio.py
@@ -163,7 +163,7 @@ class AudioEventMaintainer(threading.Thread):
         self.recordings_info_queue = recordings_info_queue
         self.feature_metrics = feature_metrics
         self.inter_process_communicator = inter_process_communicator
-        self.detections: dict[dict[str, any]] = feature_metrics
+        self.detections: dict[dict[str, any]] = {}
         self.stop_event = stop_event
         self.detector = AudioTfl(stop_event, self.config.audio.num_threads)
         self.shape = (int(round(AUDIO_DURATION * AUDIO_SAMPLE_RATE)),)
diff --git a/frigate/output.py b/frigate/output.py
index 09c385dcf..4c72247d5 100644
--- a/frigate/output.py
+++ b/frigate/output.py
@@ -60,7 +60,7 @@ def get_canvas_shape(width: int, height: int) -> tuple[int, int]:
 
     if round(a_w / a_h, 2) != round(width / height, 2):
         canvas_width = width
-        canvas_height = (canvas_width / a_w) * a_h
+        canvas_height = int((canvas_width / a_w) * a_h)
         logger.warning(
             f"The birdseye resolution is a non-standard aspect ratio, forcing birdseye resolution to {canvas_width} x {canvas_height}"
         )