The sound quality of music depends on many factors, such as sound source characteristics (sound pressure, frequency, spectrum, etc.), signal characteristics of audio equipment (such as distortion, frequency response, dynamic range, signal-to-noise ratio, transient characteristics, stereo separation, etc.), and sound field characteristics (such as direct sound, pre-reflected sound, reverberation sound, cross-correlation coefficient between two ears, reference vibration, sound absorption rate, etc.

related introduction:

different types of sounds have different requirements for sound quality. For example, the fidelity of speech quality is mainly reflected in clear, undistorted and reproduced plane sound image; The fidelity of musical sounds is high, and the creation of spatial sound images is mainly reflected in the reproduction of all sound images of the original sound source by means of multi-channel simulation of stereo surround sound or virtual dual-channel 3D surround sound.

Expand the data

The change and combination of three elements of musical sound quality, namely loudness, tone and pleasure, to subjectively evaluate various attributes of sound quality, such as low-frequency loudness for sound fullness, high-frequency loudness for sound brightness, low-frequency weakness for sound smoothness and high-frequency weakness for sound clarity. In the following, several typical listening senses are introduced in combination with sound source, sound field and signal characteristics.

for analog audio, the more frequency components of the reproduced sound, the less distortion and interference, the higher the fidelity of the sound and the better the sound quality. For example, in communication science, the level of sound quality is measured not only by the frequency range of audio signals, but also by indicators such as distortion and signal-to-noise ratio.

Baidu encyclopedia-sound quality