The rules Telegram does not tell you
Telegram's sendVideoNote accepts almost any file and then quietly shows it wrong: an oval, a still frame, or nothing. For a video note to actually play as a circle, it has to be:
- square – width equal to height;
- 60 seconds or shorter – longer is refused;
- H.264 video with AAC audio in MP4 – anything else is a file without a player;
- modestly sized, because it autoplays in the chat.
The converter works out what your video needs and does only that.
What it changes, and what it leaves alone
- Crop: the largest square from the centre of the frame. A vertical phone video loses a little top and bottom; a landscape one loses the sides.
- Size: the official clients record at 512 or 384 pixels, so a larger video is brought down to one of those. A smaller one is kept as it is – upscaling only makes a bigger file that looks the same.
- Length: anything over a minute keeps its first 60 seconds.
- Audio: already AAC in almost all phone videos, so it is copied untouched.
- Nothing else: a video that is already square, small, short and H.264 is simply copied.
Ideas
- Turn a moment from a reel or a Short into a reply your friends see as a circle.
- Greetings and announcements for a channel, edited first and then made round.
- Cut exactly the part you want with the cutter, then convert it.
Related
- Get a clip first: Reels, Shorts, TikTok.
- Name the song in the clip: find a song from a video.