diff --git a/gst-libs/gst/audio/gstaudiosrc.c b/gst-libs/gst/audio/gstaudiosrc.c
index 197ab1722e..888fdf2c4a 100644
--- a/gst-libs/gst/audio/gstaudiosrc.c
+++ b/gst-libs/gst/audio/gstaudiosrc.c
@@ -393,7 +393,14 @@ gst_audio_src_ring_buffer_acquire (GstAudioRingBuffer * buf,
     goto could_not_open;
 
   buf->size = spec->segtotal * spec->segsize;
-  buf->memory = g_malloc0 (buf->size);
+  buf->memory = g_malloc (buf->size);
+  if (buf->spec.type == GST_AUDIO_RING_BUFFER_FORMAT_TYPE_RAW) {
+    gst_audio_format_fill_silence (buf->spec.info.finfo, buf->memory,
+        buf->size);
+  } else {
+    /* FIXME, non-raw formats get 0 as the empty sample */
+    memset (buf->memory, 0, buf->size);
+  }
 
   abuf = GST_AUDIO_SRC_RING_BUFFER (buf);
   abuf->running = TRUE;