-acodec aac -ac 1 -ar 8000 -ab 16k : Mono audio, 8kHz, 16kbps (low-quality audio). 4. How to Play 144p 3GP Files
You can create this format using video conversion tools like or Handbrake . Using FFmpeg: 144p 3gp(36.05 MB)
Developed for Third Generation (3G) mobile phones. It is designed to minimize storage and bandwidth usage. 3GP files typically use AAC or AMR audio and MPEG-4 Part 2 or H.263 video codecs. 36.05 MB (File Size): The total storage space occupied. -acodec aac -ac 1 -ar 8000 -ab 16k