1 files changed, 5 insertions, 0 deletions
diff --git a/src/java/jogamp/common/av/NullAudioSink.java b/src/java/jogamp/common/av/NullAudioSink.java
index 7a02af9..781cfca 100644
--- a/src/java/jogamp/common/av/NullAudioSink.java
+++ b/src/java/jogamp/common/av/NullAudioSink.java
@@ -89,6 +89,11 @@ public class NullAudioSink implements AudioSink {
     }
 
     @Override
+    public int getSourceCount() {
+        return -1;
+    }
+
+    @Override
     public float getDefaultLatency() {
         return 0;
     }