Index: uspace/srv/audio/hound/audio_sink.c
===================================================================
--- uspace/srv/audio/hound/audio_sink.c	(revision e6bba8f1a67abc65679b29789926d859e94458f9)
+++ uspace/srv/audio/hound/audio_sink.c	(revision cd8f19d59bcb29b02648b166e0d220d7e2e7d83e)
@@ -164,5 +164,5 @@
 	assert(dest);
 
-	bzero(dest, size);
+	pcm_format_silence(dest, size, &sink->format);
 	list_foreach(sink->sources, it) {
 		audio_source_t *source = audio_source_list_instance(it);