From 3ee45027536c8a085b02844dd7469c9122bdc9ef Mon Sep 17 00:00:00 2001
From: Arif Driessen <arifd86@gmail.com>
Date: Tue, 28 Sep 2021 10:35:43 +0200
Subject: doc/filters: note values for afftflt window function

---
 doc/filters.texi | 27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/doc/filters.texi b/doc/filters.texi
index cbec749ce8..6328a8c563 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -1325,7 +1325,32 @@ Set window size. Allowed range is from 16 to 131072.
 Default is @code{4096}
 
 @item win_func
-Set window function. Default is @code{hann}.
+Set window function.
+
+It accepts the following values:
+@table @samp
+@item rect
+@item bartlett
+@item hann, hanning
+@item hamming
+@item blackman
+@item welch
+@item flattop
+@item bharris
+@item bnuttall
+@item bhann
+@item sine
+@item nuttall
+@item lanczos
+@item gauss
+@item tukey
+@item dolph
+@item cauchy
+@item parzen
+@item poisson
+@item bohman
+@end table
+Default is @code{hann}.
 
 @item overlap
 Set window overlap. If set to 1, the recommended overlap for selected
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