bs1770gain - loudness scanner and normalizer based on ITU-R BS.1770

Thebs1770gainsystemiswrittenPeterBelknerandothers.
              The authors can be contacted via http://bs1770gain.sourceforge.net/ .

       This  manual  page for bs1770gain was written by Petter Reinholdtsen and is licensed using the same terms
       as the bs1770gain source.

                                                 31 October 2024                                   BS1770GAIN(1)

       BS1770GAIN  is  a  loudness scanner compliant with ITU-R BS.1770 and its flavors EBU R128, ATSC A/85, and
       ReplayGain 2.0. It helps normalizing the loudness of audio and video files to the same level.

       Seebs1770gain--helpforexperimentaloptions.
              Command line arguments can appear in any order.

bs1770gain - loudness scanner and normalizer based on ITU-R BS.1770

-h,--help
              print this message and exit

       -i,--integrated
              calculate integrated loudness

       -s,--shorterm
              calculate maximum shortterm loudness

       -m,--momentary
              calculate maximum momentary loudness

       -r,--range
              calculate loudness range

       -p,--samplepeak
              calculate maximum sample peak

       -t,--truepeak
              calculate maximum true peak

       -b<timestamp>,--begin<timestamp>
              begin decoding at timestamp (in microseconds, format: hh:mm:ss.mus)

       -d<duration>,--duration<duration>
              let decoding last duration (in microseconds, format: hh:mm:ss.mus)

       -u<method>,--use<method>
              base replay gain calculation on method (with respect to the -a/--apply and  -o/--outputoptions),
              methods:  "integrated"  (default),  "shortterm",  or "momentary" experimental methods: "momentary-
              mean" (same as "integrated"), "momentary-maximum"  (same  as  "momentary"),  "shortterm-mean",  or
              "shortterm-maximum" (same as "shortterm")

       -a     apply the EBU/ATSC/RG album gain to the output (in conjunction with the -o/--output option)

       -o<folder>,--output<folder>
              write  RG  tags or apply the EBU/ATSC/RG gain, respectively, and output to folder -f <file>,--file
              <file> write analysis to file

       -x,--extensions
              enable following extensions/defaults:

              1)  rename files according to TITLE tag

              2)  read metadata from per-folder CSV file "folder.csv"

              3)  copy file "folder.jpg" from source to destination folder

              4)  automatically add the TRACK and DISC tags

              5)  calculate maximum true peak

              6)  convert to stereo

       -l,--list
              print FFmpeg format/stream information

       --ebu  calculate replay gain according to EBU R128 (-23.0 LUFS, default)

       --atsc calculate replay gain according to ATSC A/85 (-24.0 LUFS)

       --replaygain
              calculate replay gain according to ReplayGain 2.0 (-18.0 LUFS)

       --track-tags
              write track tags

       --album-tags
              write album tags

       --unit<unit>
              write tags with <unit>

       --apply<q>
              apply the EBU/ATSC/RG gain to the output (in  conjunction  with  the  -o/--output  option),  q=0.0
              (album gain) ... 1.0 (track gain), default  0.0 (album gain)

       --audio<index>
              select audio index (corresponds to [0:<index>] in FFmpeg listing, cf. -l/--list option)

       --video<index>
              select video index (corresponds to [0:<index>] in FFmpeg listing, cf. -l/--list option)

       --stereo
              convert to stereo

       --drc<float>
              set AC3 dynamic range compression (DRC)

       --extension<extension>
              enable extension out of

              "rename":
                     rename files according to TITLE tag

              "csv": read metadata from per-folder CSV file "folder.csv"

              "jpg": copy file "folder.jpg" from source to destination folder

              "tags":
                     automatically add the TRACK and DISC tags

       --format<format>
              convert to format

       --loglevel<level>
              set loglevel,

              level: "quiet", "panic", "fatal", "error", "warning", "info", "verbose", "debug"

       --xml  print results in xml format

       --time print out duration of program invocation

       --norm<float>
              norm loudness to float.

bs1770gain [options] <file/dir> [<file/dir> ...]