Many friends carefully choosing headphones or MP3 product line will be to look at some of the evaluation of these products on the article. However, due to evaluation article too often involve some professional terms, many consumers understand the meaning of it is very difficult. Today, we will work together to understand the professional sound quality evaluation is the hope of the future of reading plays a little help.

Range: musical instruments or human voice can sound with the highest range between the lowest.

Sound:Tamber also known as the voice of one of the basic attributes, such as the erhu, pipa tone is different.

Sound pollution: the antithesis of music naturally neutral, that is the voice of the program is not infected with a number of characteristics, such as a jar in front to be the kind of speech is a typical tone sound pollution. Staining showed that playback of audio signals of more (or less) of certain elements, this is clearly a distortion.

Distortion: the output device is unable to fully recover the input, resulting in a signal waveform distortion or changes in composition.

Dynamic: Allows recording of information and the largest ratio of the minimum information.

Transient Response: equipment for the music to follow the ability of emergency signals. Good transient response equipment should be a signal to immediately respond to a stop signal on the happend stopping not beating about the bush. (A typical musical instrument: piano)

Signal to noise ratio: Also known as the signal to noise ratio, the useful signal and noise components of the strength of contrast, often expressed by a few decibels. Equipment, the higher signal to noise ratio that it generated less noise.

Air flu: Treble used to indicate the open or in the sound field space in the musical interval between the acoustic terms. At this point, the high-frequency response can be extended to 15kHz-20kHz. Antonym of "dark (dull)" and "thick (thick)".

Low Frequency Extension: refers to playback of audio equipment can be the lowest frequency. Used for the determination of the Department of bass in the playback speaker when the sound system or can dive to what extent the scale. For example, small-scale low-frequency subwoofer can be extended to 40Hz, while the subwoofer is a large dive to 16Hz.

Bright: 4kHz-8kHz means to highlight the high frequency band, at this time is relatively stronger than the fundamental harmonic. What is the problem itself is not bright, live music concerts have a bright sound, the problem is too bright and have a good sense of proportion, too bright (even howl shout) people hate it.

Transient: the voice of a sudden increase or decrease the ability to, if the increase / decrease of sound pressure to a certain time required to explain the less the better transient, as the voice of the actual performance received mixed without the ability to survive.

Dynamic: the voice at the time of the minimum and maximum sound pressure or power, voltage ratio, is to quantify the dynamic range.

Sound: the voice of the trend, for example, clear high-frequency or low frequency sound forceful or dynamic strong jump. To some extent, the sound is good and bad, regardless, completely personal preference.

Fengman voice: means the re-burst of high, medium and low proportion of appropriate, high moderate, adequate tenor sounds a certain degree of flexibility. There are levels: the level of voice refers to re-aloud can be a true reflection of the overall sense of a band.

Clear: is the high intelligibility of language, music structured.

Balance: is the music of the voices, the ratio of coordination, left and right channels of a good consistency.

Fengman: refers to the tenor voice full, moderate treble, loudness appropriate to listen to a sense of warmth, comfort, flexibility.

Efforts: the voice of a firm means that there can be all-too-apparent sense while at the same time reflects the dynamic range of sources.

Park Run: refers to the voice of the beautiful sounds, rather than shiny sharp noise. Soft: the voice of relaxation means not tight, treble is not harsh, listening to a sense of pleasant, comfortable.

Integration: refers to the entire blend of voices together, the overall sense of feeling good group.

Realistic: the voice is the voice to maintain the original characteristics. Telepresence: sound playback gives the immersive feel.

Three-dimensional sense: there is a sense of space refers to the sound, sound like the exact position of their own, as well as flu and depth sense width.

Overall impression: the voice refers to the overall feel.