diff --git a/gst-libs/gst/audio/gstaudiosink.h b/gst-libs/gst/audio/gstaudiosink.h
index 4fde56f935..02d5a7e681 100644
--- a/gst-libs/gst/audio/gstaudiosink.h
+++ b/gst-libs/gst/audio/gstaudiosink.h
@@ -88,7 +88,7 @@ struct _GstAudioSinkClass {
   gboolean (*close)     (GstAudioSink *sink);
   /* write samples to the device */
   gint     (*write)     (GstAudioSink *sink, gpointer data, guint length);
-  /* get number of samples queued in the device */
+  /* get number of frames queued in the device */
   guint    (*delay)     (GstAudioSink *sink);
   /* reset the audio device, unblock from a write */
   void     (*reset)     (GstAudioSink *sink);
diff --git a/gst-libs/gst/audio/gstaudiosrc.h b/gst-libs/gst/audio/gstaudiosrc.h
index 211ea0a923..89d8af1b83 100644
--- a/gst-libs/gst/audio/gstaudiosrc.h
+++ b/gst-libs/gst/audio/gstaudiosrc.h
@@ -87,7 +87,7 @@ struct _GstAudioSrcClass {
   /* read samples from the device */
   guint    (*read)      (GstAudioSrc *src, gpointer data, guint length,
       GstClockTime *timestamp);
-  /* get number of samples queued in the device */
+  /* get number of frames queued in the device */
   guint    (*delay)     (GstAudioSrc *src);
   /* reset the audio device, unblock from a write */
   void     (*reset)     (GstAudioSrc *src);