Update the captioning instructions

1 files changed, 17 insertions, 7 deletions

diff --git a/captioning.md b/captioning.md
index 157adee0..f0692611 100644
--- a/captioning.md
+++ b/captioning.md
@@ -11,8 +11,8 @@ can update the index and try to avoid duplication of work. [Find talks that need
 
 We've been using <https://github.com/sachac/subed> to caption things
 as VTT or SRT in Emacs, often starting with autogenerated captions
-from YouTube (the .vtt or .srt file), but you're welcome to make
-captions using your favourite tool. 
+from OpenAI Whisper (the .vtt). You're welcome to work with captions
+using your favourite tool.
 
 We'll be posting VTT files so that they can be included by the HTML5
 video player (demo: <https://emacsconf.org/2021/talks/news/>), so if
@@ -39,10 +39,12 @@ capitalization and commonly misrecognized words.
 
 Please keep captions to one line each so that they can be displayed
 without wrapping, as we plan to broadcast by resizing the video and
-displaying open captions below. Maybe 50 characters max? Since the
-captions are also displayed as text on the talk pages, you can omit
-filler words. Split the captions at natural pausing points (ex:
-phrases) so that they're displayed nicely.
+displaying open captions below. Maybe 60 characters max, but target
+around 50 or so? Since the captions are also displayed as text on the
+talk pages, you can omit filler words. If the captions haven't been
+split yet, you can split the captions at natural pausing points (ex:
+phrases) so that they're displayed nicely. You don't have to worry too
+much about getting the timestamps precisely.
 
 For example, instead of:
 
@@ -136,7 +138,15 @@ Introduction
 What is BinDat?
 ```
 
-For an example of how chapter markers allow people to quickly navigate videos, see <https://emacsconf.org/2021/talks/bindat/> .
+For an example of how chapter markers allow people to quickly navigate
+videos, see <https://emacsconf.org/2021/talks/bindat/> .
+
+If you're using subed, you can make chapter markers by making a copy
+of your WebVTT file and then using ~subed-merge-dwim~ (bound to ~M-m~
+by default) on a region including the subtitles that you want to
+merge. You can also use ~subed-set-subtitle-text~ or
+~subed-merge-region-and-set-text~ - if you can think of good
+keybindings for those, please suggest them!
 
 Please let us know if you need any help!