![]() RULES: Rule 1: Top level comments must contain a genuine attempt at an answerĪll direct answers to a post must make a genuine attempt to answer the question. This subreddit was inspired by this thread and more specifically, this comment. r/explainlikeimfive (check their rules before posting) r/OutOfTheLoop (check their rules before posting) Thanks for reading all of this, even if you didn't read all of this, and your eye started somewhere else have a cookie. All questions are welcome - except clear trolls, please don't be that guy. All questions are welcome such as to how to change oil, to how to tie shoes. Selecting a region changes the language and/or content on is no such thing as a Stupid Question!ĭon't be embarrassed of your curiosity everyone has questions that they may feel uncomfortable asking certain people, so this place gives you a nice area not to be judged about asking it. In both cases, the frame rate is approximately 30 frames per second. For example, 1080i60 denotes interlaced scanning of 60 interlaced 1920x1080 fields per second, whereas 720p30 denotes progressive scanning of 30 noninterlaced 1280x720 frames per second. HD video formats are designated by their vertical pixel dimensions, scan mode, and frame or field rate (depending on the scan mode). Typically, the highest-resolution formats are interlaced at the higher frame rates, because noninterlaced video at these pixel dimensions would require a prohibitively high data rate. ![]() HD video formats include interlaced and noninterlaced varieties. The most common HD formats have pixel dimensions of 1280x720 or 1920x1080, with an image aspect ratio of 16:9. ![]() Typically, standard-definition refers to digital formats with pixel dimensions close to those of analog TV standards, such as NTSC and PAL (around 480 or 576 vertical lines, respectively). High-definition (HD) video refers to any video format with pixel dimensions greater than those of standard-definition (SD) video formats. For example, if your source has a frame rate of 24 fps, then reduce the frame rate to 12 fps, 8 fps, 6 fps, 4 fps, 3 fps, or 2 fps.įor mobile devices, use the device-specific encoding presets from the Preset Browser panel. However, if you must reduce the frame rate, the best results come from dividing evenly. If you lower the frame rate, Adobe Media Encoder drops frames at a linear rate. For full-motion NTSC video, use 29.97 fps for PAL video, use 25 fps. If you lower the bitrate and leave the frame rate unchanged, the image quality is reduced.īecause video looks much better at native frame rates (the frame rate at which the video was originally recorded), Adobe recommends leaving the frame rate high if your delivery channels and playback platforms allow it. To reduce the file size, lower either the frame rate or the bitrate. When working with digitally compressed video, the higher the frame rate, the larger the file size. The trade-off for higher quality, however, is that higher frame rates require a larger amount of data, which uses more bandwidth. The higher the frame rate, the more frames per second are used to display the sequence of images, resulting in smoother motion. The number of frames that appear every second is known as the frame rate, and it is measured in frames per second (fps). Video is a sequence of images that appear on the screen in rapid succession, giving the illusion of motion. John Dickinson provides a video tutorial on the Adobe website that demonstrates the use of Adobe Media Encoder with After Effects and Premiere Pro.įor more information about encoding and compression options, see this FAQ entry: "FAQ: What is the best format for rendering and exporting from After Effects?" You can control many of the factors that influence compression and other aspects of encoding in the Export Settings dialog box. For example, the best codec for compressing cartoon animation is generally not efficient for compressing live-action video.Ĭompression can be lossless (in which no data is discarded from the image) or lossy (in which data is selectively discarded). ![]() Each encoder has a corresponding decoder that decompresses and interprets the data for playback.Ī wide range of codecs is available no single codec is best for all situations. Various encoders use different compression schemes to compress the information. When exporting a movie file for playback on a specific type of device at a certain bandwidth, you must first choose an encoder ( codec). ![]() Compression is essential for reducing the size of movies so that they can be stored, transmitted, and played back effectively. Most formats use compression to reduce file size and bitrate by selectively reducing quality. Recording video and audio to a digital format involves balancing quality with file size and bitrate. ![]()
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