![]() Summary – Format: MP4, Web Optimized Dimensions – No changes Filters: Off Video – Video Codec: H.264, Encoder Preset: Slow, Encoder Tune: Still Image, Avg Bitrate: 360, 2-Pass Encoding: on Audio – Bitrate: 40, Mixdown: Mono Example of HandBrake settings used for screencast compression It’s too early for H.265 and WebM In short, we are now using an MP4 container with H.264 encoder, no scaling or filters, H.264 encoder tuned to Still Image at a low bitrate of 360 kbps and 2-Pass encoding. When we reduce the file size by 66%, we use correspondingly less energy during the data transfer. There are many of them and they all use power. Faster pages rank better on search engines, especially for mobile users – that’s no longer a secret.ĭata transfers are not free. Lighter files load faster at the user and eat up less of the mobile user’s data plan. ![]() Well, that’s three things at once! Nevertheless, this is what is achieved by optimising the media on the website, and this is especially true for video, which is some of the heaviest content we can serve. Video fileįile sizes before and after optimization A better user experience, better SEO and a greener Internet In other words – if we reduce the video bitrate to ⅓, the compressed video takes up about ⅓ of the original. The 420 kbps, or kilobits per second, can be multiplied by the length of the video to give a kilobit number, which for convenience is given in megabytes. Komprimeret video – 420 kbps Bitrate and file size are linkedīitrate and final file size are closely related. The point is that image and sound are close to being the same in the original and in the compressed version respectively. We have to apologize for the sound quality – the voice “Microsoft Helle” doesn’t always sound completely sober □ In the video we demonstrate how the built-in speech synthesis in Windows works in Microsoft Edge. An original version exported from Screencastify, and a version compressed with HandBrake. Optimal compression can significantly reduce file sizeīelow are examples of a 29-second screencast. There are built-in profiles that make it easy to get started converting to specific platforms, useful filters such as deinterlace and you queue multiple files at once. HandBrake, available for Windows, MacOS and Linux, converts anything we throw at it to H.264/H.265 or WebM. An exception is perhaps WebM instead of a GIF animations.A better user experience, better SEO and a greener Internet.Optimal compression can significantly reduce file size.The following guide will assist you in compressing your video clips to an appropriate size. Trim a Movie or Clip in QuickTime Player on Mac The following page from the Apple support site will assist you in trimming your video clips. IMovie is preinstalled on Mac computers and should provide all of the functionality that you need to trim the video clips you want to use for edTPA and to compress the files to an appropriate size. Preparing Video Clips in Windows 10 Using iMovie on a Mac The following document includes step-by-step instructions for trimming and compressing video files. It should provide all of the functionality that you need to trim the video clips you want to use for edTPA and to compress the files to an appropriate size. If you don’t want to use HandBrake, you can use the Photos app in Windows 10. This can take a while, especially if you are working with a large file! Make sure to leave enough time for this process. ![]()
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