diff --git a/technology/applications/media/ffmpeg.md b/technology/applications/media/ffmpeg.md
index 4c31048..8c97112 100644
--- a/technology/applications/media/ffmpeg.md
+++ b/technology/applications/media/ffmpeg.md
@@ -2,6 +2,7 @@
 website: https://ffmpeg.org/
 repo: https://github.com/FFmpeg/FFmpeg
 obj: application
+rev: 2024-06-10
 ---
 
 # ffmpeg
@@ -58,6 +59,7 @@ Usage: `ffmpeg [global_options] {[input_file_options] -i input_url} ... {[output
 | `-ignore_unknown`                         | Ignore input streams with unknown type instead of failing if copying such streams is attempted.                                                                                                                                                                |
 | `-copy_unknown`                           | Allow input streams with unknown type to be copied instead of failing if copying such streams is attempted.                                                                                                                                                    |
 | `-map_chapters input_file_index (output)` | Copy chapters from input file with index input_file_index to the next output file. If no chapter mapping is specified, then chapters are copied from the first input file with at least one chapter. Use a negative file index to disable any chapter copying. |
+| `-b:a <bitrate>`                          | Audio Bitrate                                                                                                                                                                                                                                                               |
 
 ### Filters
 [List of all filters](https://ffmpeg.org/ffmpeg-filters.html)