The bit rate refers to something like 128Kbps, which is the data flow during playback.

Generally speaking, the higher the bit rate, the more details are retained, and the amount of data required per unit time is The bigger, the better the quality,

But it also has a lot to do with using different encoders and different encoding methods.

To put it simply: bit speed refers to the amount of information that can pass through in a data stream per second

Finally, for example, CD sound quality refers to 44.1KHz, 16bit, then The rate of one second is

16bit * 44.1K * 2 channels = 1141.2Kbit, which is 1141.2Kbps

Divided by 8 is 176.4KBps, because there is no checksum on the music CD code, so this is double the speed of the CD.

The data CD disk has a check code, and the actual data speed is double the speed of 150KBps