What kind of sound effect is the good sound quality of the speaker?

 

The subjective listening to judge sound effects. Usually, various attributes of sound quality are subjectively evaluated according to the three elements of sound, that is, the change and combination of loudness, pitch, and timbre. For example, low frequency loudness means the sound is full, high frequency loudness means the sound is bright for sound clarity. In the following, we will introduce several typical listening sensations based on the sound source, sound field and signal characteristics.

• Three-dimensional sense, sense of presence

The sound not only has layers and orientation, but also has a sense of space. The sound image orientation of various sound sources is accurate and clear, and there is a complete sound image group distribution. The sound distortion is small, the dynamic range is large, and the transient response is good, giving people an immersive feeling.

 

• A sense of intimacy and naturalness

The sound changes naturally and smoothly, the loudness, pitch, reverberation and balance are appropriate, without exaggeration, and the momentum, style, and dynamic range conform to the natural characteristics of the sound source, making people feel friendly, natural, and pure and beautiful.

 

• A sense of unity and a sense of community

It refers to the rich and harmonious frequency, the thick and powerful low frequency, the clear high frequency level, the overall momentum is grand but delicate, the dynamic range is large and smooth, like a group of peaks standing up and giving people an overall aesthetic feeling.

 

• Fusion, balance and sense of harmony Under the conditions of wide frequency response, low distortion, high signal-to-noise ratio, and large dynamic range, whether it is volume, pitch uniformity, the harmony and balance of the reverberation, the whole sound field is organically blended together.

In addition to the above-mentioned hearing senses, when we subjectively evaluate the sound, we will also find that the sound has the following obvious manifestations:

Clear - Blurry, Cloudy

It means that the language has good intelligibility and the music has a clear hierarchy. When the balance and transient characteristics of the sound are not good, the bass and reverberation are too heavy to bring a "fuzzy", "turbid" feeling.

Balance - Unbalance

It refers to the coordination of the proportions of the various voices in the program, and the proper matching of high, medium and bass. The work itself or the orchestra is often unbalanced, and the balance can be achieved through tuning and pickup.

Plump - Thin, Shriveled

Refers to the fusion of sounds, especially the richness of middle and low harmonics, and the high harmonics are not too prominent. Responsive, warm, thick and bouncy. The high signal level is not necessarily full, poor transient response, low-order overtone loss, weak mid-bass, insufficient reverberation, early reflection

Improper time delay, etc., may bring about the feeling of thin, shriveled defects.

Round - Rough

Beautiful sound, glossy but not screeching. Mainly used for evaluating vocals and instruments. When the treble is excessive, the distortion is obvious, and the poor acoustic characteristics of the hall may make the sound rough.

Bright - Dark

Refers to full high-pitched, clear and active sounding. The early reflected sound, reverberation sound and direct sound are blended properly, which can increase the brightness. Only focusing on increasing the sound pressure level of the direct sound may not work.

Soft - Sharp

The sound is relaxed, not sharp, comfortable and pleasant to the ear. If the pickup distance is too close, it will affect the diffusion of the sound, and the sound will be sharp.

True - False

Maintain the characteristics of the original sound source. When tuning, the unpleasant sound will be suppressed, or the sound source will be modified as desired, and efforts should be made in the direction of pleasing the ear, but the characteristics of the original sound must not be deformed, so that the original piano becomes a clarinet. This is not only necessary to include in the evaluation language, but also the principle of reproducing the sound.