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Friends who are new to the fever circle either seem to understand some of the "black words" in the fever world and apply them randomly; or they are confused and don't understand what they mean. Even if there are some experienced audiophiles, the meaning and technical characteristics of some sound quality evaluation "black words" are not very clear.


In view of this, it is necessary to study the meaning and technical characteristics of these sound quality evaluation "black words".


Only by clarifying the meaning of these "black words" can we better communicate and communicate with each other; to further clarify the technical characteristics of these "black words", can we freely master the sound quality design when designing home theater and HIFI music systems by ourselves. When buying audio equipment, you can imagine the sound according to its technical characteristics and buy audio equipment that suits your taste.


Some common "black words" about sound quality evaluation are summarized as follows, and their technical meanings are briefly described.


Sound has moisture

Interpretation: The mid-to-high frequency reverberation is sufficient, the frequency response is wide and uniform, and the sound comes out with a certain degree of loudness and brightness. The distortion is small, and the ratio of the reverberation sound to the direct sound is appropriate. Hearingly feels dry, round and hydrated.

Sound quality evaluation terms with the opposite meaning: dry, dry voice.


Soft voice

Interpretation: The frequency response of the low frequency range is broadened, and the low frequency and the middle and low frequency are also obtained, and the high frequency range has no peak and the high frequency range is reduced. The reverberation is appropriate, the distortion is small, the damping is good, and it feels soft and comfortable in hearing.

Sound quality evaluation term with the opposite meaning: hard sound


Sound bright

Interpretation: Moderate low-frequency and mid-frequency components in the entire sound range, adequate high-frequency sense of volume, and rich homophonic harmony with slower decay process, proper reverberation, low distortion, good transient response, clear and active hearing.

Sound quality evaluation terms with the opposite meaning: the sound is muddy, gray.


Thick voice

Interpretation: The low frequency and the low frequency have a strong sense of volume, especially the sound from 200~500Hz, the high frequency component is sufficient, the average sound energy level is high, the reverberation is suitable, the distortion is small, and the sound is thick and powerful.

Sound quality evaluation term with the opposite meaning: thin


Voice is clear (clear)

Interpretation: The frequency response is wide and uniform, the harmonic distortion and intermodulation distortion of the entire frequency band are small, the reverberation is moderate, the transient response is good, the middle and low frequency bands are moderate, and the high frequency band is free of noise and distortion and can be produced. The language has high intelligibility, the band has a clear hierarchy, and the sound has a clear sense of bottom.

Sound quality evaluation terms with the opposite meaning: fuzzy, chaotic.


The sound is dynamic

Interpretation: The mid- and low-frequency bands are adequate in volume, high-frequency components are not lacking, reverberation is sufficient, distortion is small, and the sound is solid and powerful.

Sound quality evaluation terms with opposite meanings:

Insufficient strength, weakness.


Strong voice

Interpretation: The average energy level of the sound energy in the middle and low frequency bands is large, and the high and medium frequencies are not lacking. The proportion of direct sound is large, the reverberation sound is moderate, the loudness is high, the distortion is small, and the sound is thick and bright.

Sound quality evaluation term with the opposite meaning: sound empty


Sound wood

Interpretation: The high frequency and mid-high frequency are lacking, the low frequency and mid-low frequency components are more, but the sense of volume is insufficient, the reverberation time is short, and it sounds inactive and dull.


Voice shrink

Interpretation: The sound energy density is small, and the sound cannot be delivered; lack of midrange, less reverberation, low sound, poor clarity, and not full timbre.


The sound is crisp

Interpretation: Too much middle and high frequency and high frequency components, insufficient low frequency components, uneven frequency response of the entire frequency band, large distortion, thin and not thick sound.


Squeaky voice

Interpretation: Insufficient low-frequency volume, too much improvement in the mid-to-high frequency range (2kHz~6kHz), uneven frequency response distribution, large distortion, and aurally harsh.


Muffled voice

Interpretation: The low frequency sense is too strong, especially around 150Hz, and the low-frequency distortion is large, the transient response is not good, the high frequency and the middle and high frequency components are lacking, and the high frequency is severely attenuated above 3kHz~4kHz, and the high frequency reverberation is insufficient.


Fluttering voice

Interpretation: The average energy level of sound energy is small, the loudness is low, the midrange is lacking, the direct sound is not enough, and the indirect sound is too much, causing the sound focus to be unrealistic, and the sound image is blurred and floating.


The sound is blasting

Interpretation: The sound energy density is too large, there are too many high-frequency and mid-high frequency components, and there is noise in the high frequency range, and there is overload and topping distortion.


The sound is broken (splitting)

Interpretation: The sound energy density is too large, severe harmonic distortion, intermodulation distortion and overload clipping distortion will produce a broken feeling, and severely will be accompanied by "pupu" noise.


Sound rustling

Interpretation: The passband has a large distortion, with additional high-order harmonics, and accompanied by transient distortion, and the sound is hoarse in the auditory sense.


Hairy voice

Interpretation: The high frequency has too much medium and high frequency components, and there is noise and distortion in this frequency band, and there are high frequency additional sounds in the auditory, and the sound is rough and unclean.


Sound divergence

Interpretation: The sound is not strong, the focus is empty, the main melody is not prominent, the reverberation is too large, the intermediate frequency is lacking, the frequency response is uneven, and the sound is messy and scattered in the auditory sense.


Voice humming

Interpretation: A certain section of low-frequency and intermediate-frequency is exaggerated, there is resonance, the frequency response is uneven, and the mixing of the Central Committee is too long, such as improper use of reverb, there will be a noisy "bathroom effect", too much increase in 300Hz will also produce noisy Feeling that affects clarity.


Copper sound (or metal sound)

Interpretation: A certain section of the mid-high frequency is prominent or in the resonance peak, the frequency response is uneven, the distortion is large, and the transient response is not good. A dynamic microphone or tweeter with a poor quality often has a hard sound quality and is accompanied by a copper-skin sound, commonly known as a metallic sound.

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Foshan City Nanhai Kafu Professional Audio Equipment Factory was founded in 2006, located in Foshan, China. With more than 10 years operating, we have built up mature products technology, high quality production system and after sale service system. Our products include passive&active line array speakers, full range speakers, subwoofer, power amplifiers, digital processors and peripheral products and and all accessories, which have been successfully applied in public entertainment market, government affairs,business conference, public cultural and sports market.
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