diff --git a/libraries/common/src/main/java/androidx/media3/common/audio/AudioProcessor.java b/libraries/common/src/main/java/androidx/media3/common/audio/AudioProcessor.java
index f44e3ce471..aed98c8a56 100644
--- a/libraries/common/src/main/java/androidx/media3/common/audio/AudioProcessor.java
+++ b/libraries/common/src/main/java/androidx/media3/common/audio/AudioProcessor.java
@@ -101,11 +101,15 @@ public interface AudioProcessor {
     }
   }
 
-  /** Exception thrown when a processor can't be configured for a given input audio format. */
+  /** Exception thrown when the given {@link AudioFormat} can not be handled. */
   final class UnhandledAudioFormatException extends Exception {
 
     public UnhandledAudioFormatException(AudioFormat inputAudioFormat) {
-      super("Unhandled format: " + inputAudioFormat);
+      this("Unhandled input format:", inputAudioFormat);
+    }
+
+    public UnhandledAudioFormatException(String message, AudioFormat audioFormat) {
+      super(message + " " + audioFormat);
     }
   }
 
diff --git a/libraries/transformer/src/main/java/androidx/media3/transformer/AudioMixingAlgorithm.java b/libraries/transformer/src/main/java/androidx/media3/transformer/AudioMixingAlgorithm.java
index 57e234ccf1..e78719d5c7 100644
--- a/libraries/transformer/src/main/java/androidx/media3/transformer/AudioMixingAlgorithm.java
+++ b/libraries/transformer/src/main/java/androidx/media3/transformer/AudioMixingAlgorithm.java
@@ -76,7 +76,8 @@ import java.nio.ByteBuffer;
       case C.ENCODING_PCM_FLOAT:
         return new FloatAudioMixingAlgorithm(mixingAudioFormat);
       default:
-        throw new UnhandledAudioFormatException(mixingAudioFormat);
+        throw new UnhandledAudioFormatException(
+            "No supported mixing algorithm available.", mixingAudioFormat);
     }
   }
 }