What is the audio bit rate? Relationship between “bit depth” and “sample rate” and sound quality
Bit rate is one of the factors that determine the quality of a video job.
Among them, the one that determines the audio finish is the audio bit rate. Understanding the bit rate will allow you to control the sound quality and create better quality audio.
So on this occasion, I will explain bit depth and sample rate which are indispensable when talking about sound quality.
What is a bit rate?
What is a bit rate?
■ Bit rate represents high quality
Bit rate is a numerical value that represents the amount of information in the data, and the height of the bit rate is proportional to the quality of the data.
By looking at the bit rate, you can see how much data is packed in one second. Generally, the higher the bit rate, the higher the sound quality, and the sound and video are more realistic.
■ Audio bit rate and video bit rate
In the case of video, the bit rate is divided into two types, video and audio, and the overall quality of the video is determined by the height of each bit rate.
The “video data rate” shown in the video properties is the video bit rate and the bit rate assigned to “audio” is the audio bit rate. The “total bit rate” is the total of the two types of bit rates, video and audio, and is the bit rate of all video.
However, high bit rate audio is not always good. This is because if the quality of the original audio data or the equipment used for recording is poor, poor quality audio will be played. For example, if the original voice contains noise, the noise part will be reproduced realistically and the voice will be difficult to hear. Similarly, if the bit rate of the video is low, the movement will be choppy and unnatural, or the video will be uneven.
