diff --git a/StreamingKit/StreamingKit/STKAudioPlayer.h b/StreamingKit/StreamingKit/STKAudioPlayer.h
index 07f45c73..698b5908 100644
--- a/StreamingKit/StreamingKit/STKAudioPlayer.h
+++ b/StreamingKit/StreamingKit/STKAudioPlayer.h
@@ -182,6 +182,9 @@ typedef void(^STKFrameFilter)(UInt32 channelsPerFrame, UInt32 bytesPerFrame, UIn
 /// URLs with unrecognised schemes will return nil.
 +(STKDataSource*) dataSourceFromURL:(NSURL*)url;
 
+/// Returns canonical audio format used by STKFrameFilter blocks.
++(AudioStreamBasicDescription)canonicalAudioStreamBasicDescription;
+
 /// Initializes a new STKAudioPlayer with the default options
 -(instancetype) init;
 
diff --git a/StreamingKit/StreamingKit/STKAudioPlayer.m b/StreamingKit/StreamingKit/STKAudioPlayer.m
index 2d7709d3..939f438e 100755
--- a/StreamingKit/StreamingKit/STKAudioPlayer.m
+++ b/StreamingKit/StreamingKit/STKAudioPlayer.m
@@ -692,6 +692,11 @@ +(STKDataSource*) dataSourceFromURL:(NSURL*)url
     return retval;
 }
 
++ (AudioStreamBasicDescription)canonicalAudioStreamBasicDescription
+{
+  return canonicalAudioStreamBasicDescription;
+}
+
 -(void) clearQueue
 {
     pthread_mutex_lock(&playerMutex);