Lossy compression permanently removes data from the file in order to make it smaller.There are two types of compression: lossy and lossless. By definition, reducing file size through video compression will result in the loss of some information from the file. High-quality videos have more data, which contributes to crystal-clear footage-but slower upload and transmission times. How do I compress video without losing quality? Video compression turns raw video footage into a smaller file by keeping only the essential images. Like other kinds of file compression, compressing a video involves re-encoding a file so that it takes fewer bits to store the information, thus reducing the file size. In fact, even a standard definition 60-minute video can be as large as 70GB-which is why compression is sometimes necessary. If you’re a podcaster who’s ever had to convert a WAV audio file to an MP3, you already know that the bigger a file is, the slower and more difficult it is to transmit it. When transferring files digitally, size matters.
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