What compression does youtube use?

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Garrett Auer asked a question: What compression does youtube use?
Asked By: Garrett Auer
Date created: Sun, May 9, 2021 4:48 PM
Date updated: Tue, Jun 28, 2022 9:47 PM

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YouTube uses 4 container formats and 4 different codecs. It depends on the popularity of the video what codecs are used for your video (see below why). Generally, every of your uploaded videos will be encoded in h. 264 and will be muxed into an .

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A lot of serious audiophiles use YouTube as a legitimate source of product demonstration so you stand a better chance at reaching a well researched consumer that way. More or less they do compress audio but at 1080p you can be quite impressed with the sound. You are in it for marketing and if you can get better quality hosting it on your own website state that in the video comments.

I made a video in 1080p that came out to be 3GB. Later, I noticed that you can download it as an MP4 from your account. I downloaded it, and it was only 100MB, and the quality was identical. What kind of compression does YouTube use? It's amazing. Thanks.

Handbrake is a good tool to compress raw video or something you get out of your video editor. It can shred up to 90 percent of the weight, without compromising the quality. However, for the videos that are already compressed (like movies and tv shows), it won’t work.

Youtube uses two types of audio formats – AAC (wrapped in an MP4 container) or Opus in a WebM container. For AAC, Youtube will play a maximum audio bitrate of around 126 kbps. For Opus, it can be between 56 kbps and 165 kbps. This is regardless of the audio source format being uploaded because Youtube will automatically re-encode videos to use their format.

If YouTube starts using a new codec like VP9, they’ll transcode your video using your original upload. If you uploaded an H.264, that’s as good as it’s going to get. But, before you go running off to upload all of your uncompressed HD 1080p files, there are a few things you’ll want to keep in mind.

Compression reduces file size, that's the only benefit you get from it. Best case you don't loose information with that compression but with most codecs like h264 you do because they discard information and re-arrange it in order to achieve a high compression. Though different codecs do have an affect on the outcome, encoding a video with MPEG2 or h264 makes a huge difference.

But even then, you’re doing yourself a huge disservice and denying your soul the ability to really experience something special – and here’s why: All audio on YouTube is compressed (approximately to around 126 kbps AAC), which in itself isn’t such a bad thing; AAC compression can sound ok at relatively low bitrates. It becomes a problem, however, when poorly compressed videos are used as source files – effectively compressing the audio twice.

Google uses a very simple and strict compression setting. Based on allowing 60fps only on 1920x1080p or 1280x720. Any other video screen format that is not one of these and 16:9 is reduced to 30 or 29,970 fps.

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