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Diffstat (limited to 'doc/filters.texi')
| -rw-r--r-- | doc/filters.texi | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 867b9324ec..5bced37c4d 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -2585,6 +2585,10 @@ Set file for dumping, suitable for gnuplot. @item dumpscale Set scale for dumpfile. Acceptable values are same with scale option. Default is linlog. + +@item fft2 +Enable 2-channel convolution using complex FFT. This improves speed significantly. +Default is disabled. @end table @subsection Examples |