I can only give you a simple answer

You can find detailed parameters on Baidu yourself

(1) Video

①Video code Rate: The bit rate is the number of data bits transmitted per unit time during data transmission. The video bit rate can be understood as the amount of video data transmitted per second. The size of the video file is directly proportional to the video bitrate parameter. An original AVI video file has a screen size of 640×480, a frame rate of 25, an uncompressed video bitrate of 20000kbps, and a file size of 200M/min.

②Aspect ratio: refers to the aspect ratio of the screen. The sizes of ordinary computer monitors, projectors, and old-fashioned TVs are all 4:3. New LCD monitors are generally 16:9 (i.e. wide screen) or Other proportions. Choose according to your needs and the characteristics of the video.

③ Frame rate: refers to the number of frames played per second. The larger the data, the more delicate the action. Generally, movies are set to 24 frames, PAL TVs are generally set to 25 frames, and NTSC TVs are generally set to 24 frames. Set to 29.97 frames. There are no fixed requirements for videos played on computers. You can set it according to your needs. The larger the data, the larger the size of the video file. Generally, the FLV format video spread online is set to 15 frames.

④Resolution: The video resolution is expressed by multiplying the number of horizontal pixels by the number of vertical pixels. For example, 800 x 600 means that the video is 800 pixels long and 600 pixels wide. The size of the video displayed during normal playback is the size of the resolution. When the picture is enlarged, the image quality will be reduced.

(2) Audio

①Audio bit rate: refers to the amount of audio data transmitted per second. The higher the bit rate, the larger the file size. Select or input according to your needs and the purpose of the video file. If it is music, it can be appropriately higher. If it is ordinary speech, it can be appropriately lower. The audio format is mp3 music, and the minimum requirement is 128kbps. Any lower will cause obvious distortion.

②Sampling rate: refers to the number of samples extracted from continuous signals and composed into discrete signals per second. The larger the parameter, the larger the file size. Generally, 44100Hz is selected for music files.

③Channel: 1 and 2 are the left and right channels respectively. Generally, Auto is selected.

④Volume: The volume greater than 100% will be enhanced, and the volume less than 100% will be weakened. Be aware that if you enhance it too much it will become distorted.