diff --git a/lib/hash.js b/lib/hash.js
index bc7362f..d185a9a 100644
--- a/lib/hash.js
+++ b/lib/hash.js
@@ -88,7 +88,7 @@
 			// create byte array with length dividable by 64 (512 bit)
 			var neededLength = Math.ceil((length + 1 + 8) / 64) * 64;
 			var messageByteArray = new Uint8Array(neededLength);
-			messageByteArray.set(inputByteArray);
+			messageByteArray.set(new Uint8Array(inputByteArray.buffer));
 			var view = new DataView(messageByteArray.buffer);
 			
 			// append 10...000000
@@ -172,7 +172,7 @@
 			// create byte array with length dividable by 64 (512 bit)
 			var neededLength = Math.ceil((length + 1 + 8) / 64) * 64;
 			var messageByteArray = new Uint8Array(neededLength);
-			messageByteArray.set(inputByteArray);
+			messageByteArray.set(new Uint8Array(inputByteArray.buffer));
 			var view = new DataView(messageByteArray.buffer);
 			
 			// append 10...000000
diff --git a/releaseNotes.txt b/releaseNotes.txt
index d3e54b2..8f76f5e 100644
--- a/releaseNotes.txt
+++ b/releaseNotes.txt
@@ -7,6 +7,7 @@ Version 0.5.8:
 	
 	fixes:
 		- after reset the hidden settings and expanded views were not reset
+		- audio cache did not work properly
 	
 	known issues:
 		- if a data URL is blocked the page action button does not appear