Relationship between bit rate, video image quality and sound quality
In short, the higher the bit rate, the better the image quality and the sound quality of the video.
In other words, if the video bit rate is set high, the included color information will increase and even the smallest parts of the screen can be displayed neatly. Therefore, it can be said that the bit rate of the video directly affects the image quality of the video. On the other hand, if you set the audio bit rate high, you can record even the delicate parts of the voice and hear it clearly. In other words, the audio bit rate directly affects the sound quality of the video.
Also, as mentioned in Part 1, it is calculated based on factors that are different from video and audio bit rates, but if you want to improve image quality or sound quality, you need to increase either. .
Differences in picture quality and sound quality due to enhanced items
image quality
Increase frame rate → Smooth screen
Increase the resolution → The color fineness of the screen can be displayed clearly
Sound quality
Increase the sample rate → Soft sound
Increase the bit depth → Increase the expressiveness of the sound, such as finesse and volume
Part 3: Estimated Video Bitrate and How to Change It
As the video bit rate improves, so does the amount of data. Therefore, it is not good to ignore the specifications of the computer and the network environment and set it too high.
Speaking of the standard video bit rate value, 1,000 Kbps to 3,000 Kbps is considered sufficient for on-site playback. Also, although the audio quality is usually less important than the video display, it is common to set the audio bit rate to 128 Kbps and increase the video bit rate a bit.
However, this is one of the so-called guidelines and the value of the appropriate bit rate depends on the purpose of the video. It is also important to adjust the frame rate and resolution. In order to optimally adjust this, I would like to recommend everyone this time the popular video editing software “iMyFone Filme” which is easy to use.
Movie Features:
You can set the frame rate, resolution, bit rate, format, etc. all at once, and you can guarantee video quality with detailed settings.
You can add text and effects, as well as basic editing tasks like cutting, cropping, rotating, splitting, and adjusting the speed to make your video more attractive.
It is possible to export the edited video directly to various platforms, but it is very convenient for people who want to share it on SNS.
Movie Video Editing
Free Download Free Download
The procedure for setting the bit rate is as follows.
Step 1.After downloading and launching Filme, click on the Media Library panel or the three buttons below to install the video file. You can also put videos directly from your computer into your media library.
Import videos from media library
Step 2. Drag and drop the video file whose bit rate you want to change onto the timeline. Then click Output in the upper right corner of the interface.
Video output
Step 3. Click the “gear” icon to set the bit rate and related factors in the settings screen that opens. The maximum video bit rate can be set to “80000Kbps” and the maximum audio bit rate can be set to “320Kbps”, but once selected, press “OK” and “Exit” to finish.
Video Bitrate Settings
Part 4: Recommended bit rate settings on YouTube, etc.
The video sharing platforms we often use, like YouTube and SNS, have their own video bitrate ranges. If you want to post smoothly, you need to preset your video.
Therefore, the recommended bit rates for YouTube, Nico Nico, and Twitter are summarized in the list below. Please refer to it when you make a video.
Recommended video bit rate
YouTube video type (standard frame rate, SDR) smiling Twitter
1080p 8 Mbps 12 Mbps or more –
720p 5 Mbps 6 Mbps or more 2048 Kbps
480p 2.5 Mbps 2 Mbps or more 768 Kbps
360p 1 Mbps – 768 Kbps Recommended audio bit rate
YouTube smiling Twitter
128, 384, 512 Kbps 64, 128, 192 Kbps 32, 64, 128 Kbps
