There are a number of settings you can easily change in your encoder that can have a significant impact the quality of your video. Three key settings in your encoder are the bit rate, output resolution, and input resolution. These three settings are discussed in the first three steps of our Top 10 Simple Steps to Improve Your Broadcast Quality.
There are other factors that can impact video quality as well, such as the camera, encoder, lighting, camera angle, and the amount of motion in the picture. For example, if you have poor lighting and your camera angle shows the entire stage then you will have trouble making out facial expressions of a person who is moving around the stage and speaking even if you broadcast with a bit rate of 700 Kbps and a picture window size of 640x360. On the other hand, if you have good lighting and zoom in on the person speaking to where their head and shoulders take up most of the picture window then it will be easy to see their facial expressions even with a small 320x240 broadcast at 300 Kbps.
You are welcome to contact us to see if we have any recommendations specific to your setup that may help to improve the video quality of your broadcasts.