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-rw-r--r--doc/filters.texi14
1 files changed, 14 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi
index 50e1682144..f89b1d0b52 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -1107,6 +1107,20 @@ Stop picking threshold value.
@item on
Start picking threshold value.
@end table
+
+@item precision
+Set which precision to use when processing samples.
+
+@table @option
+@item auto
+Auto pick internal sample format depending on other filters.
+
+@item float
+Always use single-floating point precision sample format.
+
+@item double
+Always use double-floating point precision sample format.
+@end table
@end table
@subsection Commands