diff --git a/libavformat/westwood_aud.c b/libavformat/westwood_aud.c
index 21d16f7385e669dc1d813c4b055138000c6d7cc2..27dc3fae636071fb94e90c69f6fc47e55009d888 100644
--- a/libavformat/westwood_aud.c
+++ b/libavformat/westwood_aud.c
@@ -117,7 +117,7 @@ static int wsaud_read_header(AVFormatContext *s,
     st = avformat_new_stream(s, NULL);
     if (!st)
         return AVERROR(ENOMEM);
-    avpriv_set_pts_info(st, 33, 1, wsaud->audio_samplerate);
+    avpriv_set_pts_info(st, 64, 1, wsaud->audio_samplerate);
     st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
     st->codec->codec_id = wsaud->audio_type;
     st->codec->codec_tag = 0;  /* no tag */