From 35b49e497cac452c76ead8da4d618ab93216ad15 Mon Sep 17 00:00:00 2001 From: Werner Robitza Date: Wed, 16 Aug 2017 13:27:19 +0200 Subject: [PATCH] filters.texi: explain audio upsampling in loudnorm Explain that audio will be upsampled to 192 kHz. Addresses issues mentioned in issue 6570. Signed-off-by: Werner Robitza --- doc/filters.texi | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/doc/filters.texi b/doc/filters.texi index 502ebd5e45..ef0b2ca899 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -3070,6 +3070,10 @@ EBU R128 loudness normalization. Includes both dynamic and linear normalization Support for both single pass (livestreams, files) and double pass (files) modes. This algorithm can target IL, LRA, and maximum true peak. +To accurately detect true peaks, the audio stream will be upsampled to 192 kHz. +Use the @code{-ar} option or @code{aresample} filter to set a different output +sample rate. + The filter accepts the following options: @table @option -- 2.14.1