Just like a movie, if you download a movie with 15fps (frames per second), if it is an action movie, you will feel that the picture is blurred in a fierce scene. If it is a romantic movie, it feels like a 30fps movie, and it is very smooth. So you should choose some large symphonies or detailed music, such as electronic music, for comparison.
In fact, there are many reasons why the difference in sound quality cannot be reflected: first, everyone's listening level is different, and second, the equipment. For example, a mobile phone notebook and an ordinary mp3 player may play 228 and 320 at the front end with small thrust (but 128 and 320 and >; 700 lossless or can hear the difference), you need to connect the power amplifier, increase the power, the difference in sound details will be obviously amplified, and you can hear the difference. It is also possible that the headphones are poor. For example, many mobile phones are equipped with headphones, and many consumer-grade headphones that are not more than 200 yuan may be difficult to distinguish.
Of course, the last reason is that some 320kbps songs on the Internet are actually empty labels, and lz may also feel that some 320 songs are obviously broken or have poor sound quality. The reason is that many people convert low bit rate into high bit rate and upload it to the internet in order to increase the download volume. Everyone likes to download high-quality files, and naturally some files will become popular. However, although this document is said to be 320, it actually contains many nihilistic elements. For example, if you convert a 200MB movie with poor picture quality into a movie with a bit rate of several thousand 2G, the picture is still no better than the original.