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This is Kidaoka, Marketing Manager. In this article, we will explain the relationship between video file size and image quality, and show you how to set a smaller video file size. When uploading video materials on learningBOX, the file size of the video file exceeds the capacity of the file, so you cannot register the video file you have taken and have to re-take it again! Please refer to this article to find out how to compress your video files. Click here to see the table of contents. 1 Relationship between video file size and image quality 2. how to calculate video files 3. how to compress video files using FFMPEG 4. summary Relationship between video file size and image quality A video file is made to look like a moving picture by showing a number of still images one after the other, based on the same principle as a flip book. Since many images are stored in a single video file, the file size naturally becomes larger. The size (capacity) of a video depends on three main factors: bit rate, resolution, and codec. Let's take a closer look at them one by one. Bit Rate The bit rate is the amount of data that can be sent and received in one second. The unit is bps (Bit Per Second), which indicates how many bits can be transmitted in one second (Per Second). In simple terms, it is a unit that expresses "how much data can be transferred. The higher the bit rate number, the higher the image quality and the larger the video file size. Resolution Resolution is a numerical value that expresses the density of pixels in a video. In digital video, it is expressed as "a collection of very small colored dots (pixels). The unit of "dpi" or "ppi" is used. The higher the resolution, the higher the density of dots, and the smaller the resolution, the smaller the video capacity. Codec A codec is a device or software that performs the encoding (compression) and decoding (playback) of data. Handling large-sized videos uncompressed requires large memory, hard disks, etc., or compressing the video capacity to reduce its size. Calculation Method for Video Files The data capacity of a video file is calculated as follows ▶Here is the calculation formula Bit rate of video × Length (seconds) ÷ 8 (convert bits to bytes) Since the amount of data per second is the bit rate, multiply the time and convert it to bytes to find the video file size. Exercise For a 10-minute video at 2.5 Mbps, what is the file size? →2.5Mbps × 600 (seconds) ÷ 8 = 187.5MB (megabytes) ▼Here is a quick table on video capacity. Please use it as a guide when uploading your video. The actual capacity may go up or down slightly when audio is added, but this will give you a rough idea of the capacity of your video. Here is how to compress your video using FFMPEG FFMPEG is a command line tool to convert audio or video formats. In this article, we will show you how you can easily compress videos using this tool. (Works on Windows 7 or later) If you have any problems such as audio skipping or overlapping when uploading videos using the newer version, please use the older version here. New: Encoder_20200630.zip Old: Encoder_20180402.zip Download and unzip Encoder_20200630.zip ▼ Click here for instructions on how to compress videos. STEP①: Download Encoder. STEP②: Extract the downloaded zip file. Compress the video using the unzipped Encoder STEP ③: Open the extracted zip file and click on Encoder.exe. STEP④: Select the quality of the video if necessary. STEP⑤：Drag and drop the video you wish to compress. STEP⑥: Encoding of the video will begin. Please wait for a while until the encoding is finished. When encoding is complete, the video will be compressed and saved in a smaller size. *Please note that some images, audio, and video files may not be reduced in size even if the video is compressed. Conclusion In this article, we explained the relationship between video file size and image quality, and introduced how to set the size of video files smaller. Shooting and editing videos is a really time-consuming process. If you are worried about uploading your videos due to their large size, please refer to this article to learn how to compress your video files! LearningBOX has plans that can handle large videos. By using the standard plan, the file size limit per video is relaxed, as well as the total amount of content that can be uploaded. For more information on video capacity per plan, please see About Video Capacity. Thank you for your patience with this paper. We also recommend this article! Also read "[The Forefront of Education] Conducting Effective Newcomer Training with Video and E-Learning"

In this article, we will discuss how to conduct online classes using learningBOX and the video sharing site Vimeo. Click here for the Table of Contents 1. what is Vimeo? 2. how to register and set up Vimeo 3. how to set up live streaming on learningBOX 4. summary What is Vimeo? Vimeo is a video sharing and viewing site similar to YouTube and Nico Nico Douga. Unlike YouTube, Vimeo does not display advertisements. ⇒ Vimeo's official page Features of Vimeo With Vimeo you can You can set a public scope for your videos. You can set a password and play videos within a specific domain. ➡You can limit video viewing to only those who can use a specific domain or know the password! How to register and set up Vimeo If you would like to set up online classes using Vimeo, you can sign up for the Premium plan here. This Premium plan is a prerequisite for setting up live video. The Plus, Pro, and Business plans do not support live video streaming. Please note this when signing up for a paid plan. *Vimeo's paid plans come with a 30-day money-back guarantee to get started. If it does not fit your usability, they can offer a refund for up to 30 days of use. (At the time of writing: information as of June 1, 2020. Please visit Vimeo's website for more information). How to set up Vimeo When you sign up for the Premium plan and log in to Vimeo, you will see this screen. To set up a live stream, click on Live Events in the side menu bar. ◆STEP: 1 Please go to Live Event >> Create Live Event. ◆STEP: 2 By setting up your video viewing preferences, you can set the video distribution date and publication restrictions here. When you have completed the settings, finally click on 【Next】. STEP：3 From this screen, configure specific domain settings STEP:4 Embedding >> Specific Domain STEP：5 After setting up the domain, click the + button at the end. STEP: 6 Open the [Embedding] tab and copy the embed code of the video. How to set up live streaming on learningBOX Once the Vimeo settings have been set up, proceed to ◆STEP:3 ⇒ ④, the next step is to set up the video to be streamed on learningBOX. Please log in to learningBOX and go to Content Management >> ⊕ button >> Other materials >> iframe materials. Enter the title and ◆STEP: 3 ⇒ Enter the embed code you copied in ④ into the embed code field of [iframe teaching materials] and finally click the Save button. After setting up the learningBOX, return to the Vimeo settings screen and click [Start Live Streaming]. You can find more information on how to use Vimeo's live video streaming service here. Conclusion In this article, we introduced how to set up an online class using learningBOX and the video sharing site Vimeo. By using Vimeo, you can not only distinguish between public and private videos (password-protected or open only to those you wish), but you can also set detailed privacy settings for each video. The domain name of the video can also be specified, which is useful for making videos available only on the company's own website or on closed member sites.

Regarding the size of video files when creating e-learning materials I am Nagai🎮 of Quality Control, suffering from a cold that is not completely gone. This time, I would like to share with you a question that we have received many inquiries from our customers: "When uploading e-learning materials, how long is a video file and how much space does it take? This article is an explanation and a small piece of information in response to this question. Thank you for your understanding and cooperation. Click here for Table of Contents 1. what is a video file 2. how to calculate a video file 3. how to upload a video file to learningBOX 4. summary What is a video file? A video file uses the same principle as a flip book to show a series of still images one after the other to make the picture appear to be moving. A single video file contains a number of image files, and the file size naturally becomes large. The size (capacity) of a video file depends mainly on the numerical values of factors such as bit rate, resolution, codec, etc. Let's take a look at each of these factors in detail. Let's take a look at them one by one in detail. Relationship between file size and image quality Bit rate This is a unit of rate at which data is transferred. In simple terms, it is a unit that expresses "how much data can be transferred. The higher the bit rate number, the higher the image quality and the larger the video file size. Resolution Resolution is a numerical value that expresses the density of pixels in a video. In digital video, it is expressed as "a collection of very small colored dots (pixels). The unit of "dpi" or "ppi" is used. The higher the resolution, the higher the density of dots, and the smaller the resolution, the smaller the video capacity. Codec A codec is a device or software that performs the encoding (compression) and decoding (playback) of data. Handling large-sized videos uncompressed requires large memory, hard disks, etc., or compressing the video capacity to reduce its size. POINT Generally, to improve video quality, it is necessary to increase the resolution (fineness) of the video, and to increase the resolution of the video, it is necessary to increase the file size of the video. In particular, the size of the bit rate, which represents the file size per second of video, will greatly affect the quality of the image. However, if the bit rate is too large, the performance of the communication line and terminal will be greatly burdened when the video is transmitted over the Internet, causing the video to not play smoothly. Video File Calculation Method You can calculate how much the file size of a video file will be. The data capacity is calculated as follows. ▷Here is the calculation formula Video bit rate x length (seconds) ÷ 8 (convert bits to bytes) Since the amount of data per second is the bit rate, multiplying the time and converting it to bytes will give you the video file size. Exercise For a 10-minute video at 2.5 Mbps, what is the file size? →2.5Mbps × 600 (seconds) ÷ 8 = 187.5MB (megabytes) ▼Here is a quick table on video capacity. Please use it as a guide when uploading your video. The actual capacity may go up or down slightly when audio is added, but this will give you a rough idea of the capacity of your video. How to upload a video file to learningBOX When uploading a video file, the size of the file may vary depending on the settings used at the time of shooting and the performance of the equipment used at the time of shooting. You can check the capacity of the video file by right-clicking ➡ Properties. Click here to see how to check the capacity of your video file. We will show you how to upload videos using YouTube. In this article, we will show you how to upload a YouTube video using video content provided free of charge by the "IPA (Information-technology Promotion Agency, Japan)". (Source: From IPA youtube channel) Registering a YouTube video STEP1: First of all, login to learningBOX. STEP2: Click on "Content Management" and go to "Other Materials" ➡ "YouTube Video". STEP3: Paste the title name and the embed code of the YouTube video. With these steps, you can easily register YouTube videos. How to upload YouTube videos to learningBOX! If you want to check YouTube videos from the learning screen, don't forget to set the material assignment for the folder containing the YouTube videos! This setting is often forgotten. If not set, the folder will not appear on the learning screen. Please be careful. You can upload videos taken with your phone, PC, or video camera! Please login to learningBOX as before and go to the contents management screen ➡ ⊕ button ➡ Video. Conclusion In this article, we have briefly explained the relationship between video file size and image quality. We believe that many people want to use video for education and training. Our e-learning system (learningBOX) allows anyone to easily set up video materials. Please take this opportunity to try learningBOX. learningBOX is free for up to 10 registered accounts and the service can be used indefinitely.