1. Lossless sound quality is music that has not undergone lossy compression;

2. Songs played by high-quality music can be heard very clearly! And when playing low-quality music, it will appear Noise.

3. Lossless sound quality: music without lossy compression. In other words, there is no data loss during the process of grabbing it from the disc and changing it to the current format (100% of the original data can be saved). For example, 320kbps mp3 means that there are only 320x1024 bits of content in one second, while the original sound of CD is 1411x1024 bits of content. Common lossless formats include wav, tta, tak, ape, flac, wmal and alac.

4. High-quality music: When playing high-quality music, you can hear it very clearly! But when playing low-quality music, there will be noise. Commonly found on the Internet are: 192K 128K 64K 320K sound quality music. For sound quality 320K, it is widely recognized as high-quality music. The MP3, WMA, and OGG we often see are called lossy compression. As the name suggests, lossy compression reduces the audio sampling frequency and bit rate, and the output audio file will be smaller than the original file.

Extended information:

Sound quality and texture

The texture of the sound. Just like the ratio of silk, silk and coarse cloth.

Thickness of sound quality

Refers to the roughness and detail of the sound. Musical instruments should have a moderate roughness, and the thickness of each instrument is different. If the sound is more detailed than the original instrument should be (due to insufficient sound analysis ability), the sound of the instrument will be lost. texture, and sometimes the sound is not lively enough;

If the sound exceeds the rough texture that the instrument itself should have, the sound will sound harsh. Therefore, delicate and vivid sound quality is our goal.

Sound Purity

Whether the speaker material can reproduce the sound quality of the original instrument depends on factors such as the conversion process and the rendering of the equipment itself.

For example, speaker boxes made of plastic will add plastic sound to the playback sound; chassis made of aluminum, copper, and iron will also have different metallic sounds; and various Different parts, such as crystals, vacuum tubes, capacitors, resistors, etc., will also produce different sound qualities, which will penetrate into the playback sound; noise caused by poor quality parts will also cause impurities in the sound.

Q degree of sound quality

The highest standard is of course just right, as the name implies, just like the QQ elastic feeling when we eat noodles and rice, it can be said to be the end rhyme, or It can be said to be a ringing phenomenon with moderate damping. In fact, in music, elasticity is everywhere, and it does not necessarily only refer to the bass part. A good sound, whether it is bass, midrange or even treble, should be elastic, but the part that affects the elasticity of the entire sound range is mainly in the low frequency.

If the audio equipment does not have good control over the low frequencies, the low frequencies will be soft, loose, dragged out, or have no ending; if the low frequencies are excessively damped, they will end too quickly or too much. If it is short and has no aftertaste, the low-frequency details will not be fully expressed. A good low frequency should be elastic, and the sound should have a final rhyme, like a spring that will pop out and back in. It should be tough and elastic.

Baidu Encyclopedia-Sound Quality