How to Create High-Quality Videos (Q&A Topic 11)
More and more users have been asking us why their videos have high bitrates but poor visual quality. This is often caused by improper shooting techniques. Today, let's discuss how to shoot better videos.
1. Use a tripod to reduce camera shake
If the camera is not stable, the footage will be shaky. Shaky images introduce a lot of extra information, which increases the data rate and places a burden on bandwidth.
2. Use good lighting techniques
The brightness of the light source is important. Many cameras have an automatic brightness adjustment function. When the ambient light is insufficient, the camera will automatically adjust the brightness. During this adjustment process, some noise may be introduced, which is recorded as useful information, thereby increasing the video bitrate.
3. Choose an appropriate frame rate
The frame rate indicates the number of frames played per second (fps). If the clip has a high data rate, a lower frame rate can improve playback on low-end computers. Since the video will look much better when viewed at its original frame rate, it is recommended to use a higher frame rate. If you need to reduce the frame rate, reducing it by an integer multiple will yield better results. Typically, screen recordings use 5 or 15 fps, 24 fps is the lower limit for continuous motion, and 60 fps is essentially the limit of human eye resolution.
4. Remove noise and deinterlace
After capturing video, you may need to remove noise and deinterlace.
5. Keep it simple and avoid complex transitions
Hard cuts (as opposed to cross dissolves) generally offer the best compression. While cross dissolves may look visually appealing, their compression efficiency is relatively poor.
