From 73c938dd9f3bc9a04a26d2d75f3c8845c6eed0f1 Mon Sep 17 00:00:00 2001 From: Paul B Mahol Date: Thu, 21 Jan 2016 14:42:09 +0100 Subject: [PATCH] doc/filters: fix afftfilt example Signed-off-by: Paul B Mahol --- doc/filters.texi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/doc/filters.texi b/doc/filters.texi index 053e229a5e..dd1f203a78 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -804,9 +804,9 @@ window function will be picked. Default is @code{0.75}. @itemize @item -Increase first 50 bins by 0.1 and lower all other frequencies by factor of 10: +Leave almost only low frequencies in audio: @example -afftfilt="1.1*between(b\,0\,49)+0.1*between(b\,50\,f)" +afftfilt="1-clip((b/nb)*b,0,1)" @end example @end itemize