The Video Bitrate Changes the Quality of the Video

The bit rate can change the video quality and file size. When the encoder and resolution are the same, the higher the bit rate, the better the quality.  And with the same encoder and resolution conditions, the lower the bit rate, the smaller the file size. With different encoders, with the same resolution, the software will automatically match the most suitable bit rate that the encoder is suitable for. If it is an advanced encoder, the bit rate is relatively low; while the intermediate encoder needs higher bit rate, but their video quality is the same. In order to make a better quality, in the case of improved resolution, the bit rate needs to be improved, which is the reason why a rising tide raises all boats. It is easy for you to get better quality by changing bit rate. Besides, it can help you to reduce the file size.

1. When both the encoder and resolution parameters are fixed, the bit rate is the only factor that determines the quality of the video. The higher bit rate, the better the quality of the video.

2. Generally, the bit rate, the encoder, and the resolution are all corresponding relationships. So there is a table that includes the frequently-used encoders at the common resolution, and the most appropriate bit rate. You can understand by directly watching the table below. (The most appropriate meaning is that the video quality is very good and the file is relatively small.)

H265 (HEVC) and VP9 are top-level encoders; H264 (AVC1) is a mid-level encoder; MPEG4, MPEG2, XVID, DIVX and other encoders are low-level encoders. The higher encoder needs higher bit rate.

The bit rate is the most crucial factor that determines the size of a video file. The bit rate is proportional to the file size. In a word, the higher bit rate, the larger video file size.

Note: Often, we can see that the larger resolution, the larger video file. (But the video with the same resolution also has a difference in size.) That's because the higher resolution video requires more matching bitrates to achieve good quality. So the main reason is the high bit rate.

In all video conversion software, the higher bit rate, the slower the video conversion speed, and it will consume more system resources.

However, the conversion speed is also related to the encoder. The higher compression ratio, the slower conversion speed at the same bit rate.

Note: In WonderFox Lightning Mode, the conversion speed is not affected by the bit rate

A: People who like to watch videos have high requirements for video quality and would like to convert some low quality videos into high quality videos.

How to improve quality in an easy solution?

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B: Like video and audio, it is very reasonable to improve the quality of audio and video by changing the bit rate.

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C: You will find that the higher quality video, the bigger file size. Get the smaller the file size will be the problem you want to solve.

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