Variable bit rate
Variable bit rate
The bit rate fluctuates in a video or music data file. More efficient compression is achieved by increasing the bit rate (large amount of data) in the large change part (vigorous movement) and decreasing (decreasing the amount of data) in the small change part. You can expect the effect of reducing the amount of data while maintaining the quality or the effect of improving the quality while maintaining the amount of data, but it is generally used for the first purpose.
⇨ Bit rate
Source: Asahi Shimbun Publishing Co., Ltd. “Books to open when you have problems with your computer” Information on books to open when you have problems with your computer
Explanation of the ASCII digital glossary.jp “Variable bit rate”
Variable bit rate
Bit rate at which the amount of data changes per unit of time. With the variable bit rate, the bit rate per unit of time can be adjusted according to the state of use of the line and the amount of data to be transmitted, so that the data can be transferred efficiently. Also, when compressing video to mpeg, etc., a compression method by changing the bit rate value according to the video.
Digital Daijisen “Variable Bit Rate” explained
Kahen-Bitrate [Variable Bit Rate]
“Variable bit rate” used in a system, for example, when compressing audio and video data. By changing the bit rate, it corresponds to the amount of data in the scene. VBR. VBR control. → Constant bit rate
