Update

rust_native_module/src/beat_tracking/tracker.rs

@@ -182,7 +182,11 @@ impl BeatTracker {
                     if let Some((period_length, crossing)) = self.get_correlation_data() {
                         let last_update_timestamp = self.audio_capture_thread.get_last_update();
 
-                        let mut dt = (now - last_update_timestamp).as_millis() as i64;
+                        let mut dt = if now > last_update_timestamp {
+                            (now - last_update_timestamp).as_millis() as i64
+                        } else {
+                            -1 * (last_update_timestamp - now).as_millis() as i64
+                        };
                         dt += ((POINT_BUFFER_SIZE - crossing) * MILLIS_PER_POINT) as i64;
 
                         let mut prev = now - Duration::from_millis(dt as u64);