diff --git a/ChangeLog b/ChangeLog
index 2c2b4674e..cb49ed5f7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2003-08-27  Moritz Bunkus  <moritz@bunkus.org>
+
+        * mkvmerge: Fixed some missing default values in the Matroska
+        reader (e.g. mono audio files). Reported by Liisachan.
+
 2003-08-25  Moritz Bunkus  <moritz@bunkus.org>
 
         * mkvmerge: Improved all command line parsing error messages.
diff --git a/src/r_matroska.cpp b/src/r_matroska.cpp
index 057352835..c80300626 100644
--- a/src/r_matroska.cpp
+++ b/src/r_matroska.cpp
@@ -405,19 +405,11 @@ void kax_reader_c::verify_tracks() {
           }
         }
 
-        if (t->a_sfreq == 0.0) {
-          if (verbose)
-            mxwarn("matroska_reader: The sampling frequency was not "
-                   "set for track %u.\n", t->tnum);
-          continue;
-        }
+        if (t->a_sfreq == 0.0)
+          t->a_sfreq = 8000.0;
 
-        if (t->a_channels == 0) {
-          if (verbose)
-            mxwarn("matroska_reader: The number of channels was not "
-                   "set for track %u.\n", t->tnum);
-          continue;
-        }
+        if (t->a_channels == 0)
+          t->a_channels = 1;
 
         if (t->a_formattag == 0) {
           if (verbose)