i am always wondering why people ask for help if they already changed preset and seem to know everything and if you try to tell them something they take it as an insult or something.
It's called trying things out for yourself, and that's normal. Not only that, but the part about him "seeming to know everything" was unnecessary, as that was never implied anywhere. If you would have paid attention to what he actually wrote instead of interpreting things without really helping, you would see that tiba doesn't understand two main things here:
- How CPU profiles work;
- The importance of bitrate in regards to video quality.
AKA video encoding basics, and as this is an obscure subject to the uninitiated it isn't strange for most people to not understand this.
CPU profiles are named somewhat unintuitively when you look at it the first time. What this setting does is it trades compression efficiency against encoding speed. The slower a preset you choose, the more taxing the encoding will be for your computer. In other words, your CPU will have to work harder to encode the video. This technically means that you can get better quality with lower bitrates, but this is only feasable if you have the CPU power for it.
The quality of a video is directly dependent on the bitrate. Simply put: the more bits you give the video, the better it will look. 600Kbps of extra video data is actually quite significant, and can definitely be a big step up in terms of video quality. Think of it as extra space for more video data to be stored into. The more video data that can be stored, the less you have to sacrifice, making the video look better. You can think of CPU presets as the time you're willing to give the CPU to find out how it can most effectively store the video data into the "space", AKA the bitrate.
If you want to improve your video quality, your first step should be to increase the video bitrate. Changing CPU presets is another way, but the trade-off is that you usually have to dedicate a lot more CPU power for that. The best results can be gotten through experimentation with both bitrate and CPU presets.
That said, nothing is stopping you to livestream at a lower bitrate. It just won't look great.
