When we buy a headset, no more than concerned about two things:1. Headset sound quality.2. Headset appearance (for girls still concerned for this).I am here to say that for the first, how to identify quality headphones.Headphone sound quality is good or bad usually by audition and compare to identify its good and bad, this time you need to prepare some stuff:An. A better sound quality of MP3As the saying goes "a good horse with a good saddle" in my opinion, need a good saddle with good Malay.A good quality MP3, earphone with good sound quality with an order to show it's the perfect sound out.And a good quality MP3, to a greater extent the headset audio quality to the fore.Must not use the computer to listen (in addition to a professional, independent computer sound card), we all know, computers are not primarily used for listening to music.(MP3 how to choose good quality, this is not my topic here to say. Is higher than the price of MP3 sound more good? I should not, and we all know the answer, but I think, in three to five MP3 epidemic year bought a hundred dollars would not be as sound quality of MP3, but now a few hundred dollars of MP3 sound quality is very good.)
(2) a suitable song for auditionNot every song can be used to listen to some songs the band is too monotonous, too biased towards a particular frequency band, such as low or medium frequency or high frequency.Many people have this view, to audition for this song, so use your headphones sound quality is certainly good. Here, I like to say that a suitable song for an audition, not the original sound quality will get better headphones, but headphones can better distinguish the sound quality is good or bad.Also, the song is used to test sound familiar to you, it is best heard many times. So you can listen music when headphones are out there the more perfect performance of a baseline for comparison.For the audition song, I recommend: 1 Hotel California (USA Eagles), 2 Ferry (Tsai Chin).I am more respected by Hotel California. This song belongs to the whole band, the drums, sand hammer, sound, voice, guitar sound is low frequency, medium frequency, high-frequency have, the headset can be used to test the various frequency bands.3 more quiet environment auditionListen to the quiet environment is also important to listen headset. Noisy environment, the effect will be greatly audition headphones called discount. On this point, we all know, I do not say.Another point I want to say is that in the audition able to open when the volume of MP3 on how to open how much you can afford within the ear.Because a large volume, one can put the headset will sound the advantages and disadvantages are nothing; Second, some headphones power is very small, will be issued under the big break the sound volume (which is a fatal flaw headphones).4. A switch interface, a good quality headsetHeadphone sound quality what is best identified by comparing to. Find a switch interface, a good quality headphones, the exchange in the shortest possible time audition, so the headphones need to identify more with other headphones, the identification of better audio quality headphones.Above points, the second point is more important, but many people do not know.Here to listen to the Hotel California, for example, talk about good and bad performance of the band headphones.Headphones low frequency rating:LF good headphones drums / voice calm, flexible and intensity (stirring, as if to knock on your heart), drums have a certain continuity and vibration.Poor low-frequency drum boring headphones, sound like a gong, like, immediately stopped, did not last; or echo large, giving a "buzz" or "Hong Hong" feeling, as in a large open room echo when speaking.Headset in the band rating:IF good headphones kind of natural human voice, the thickness, magnetic.IF poor headphones voice choking, as the simmering breath in throat singing, the sound is not completely open; or pitched singing voice.Evaluation of the high frequency headphones:High-frequency sound is very good headphone guitar rigid, powerful voice contraction, giving a clear sense of brightHeadphone sound quality overall assessment:Clear and thorough clean, no muddy or echo phenomenon.Efforts to resolve a good, detailed, tiny instruments can clear sound playback.Layering is good, background music and vocal position clear.Headphone sound quality evaluation, constantly listen to sound good through headphones and bad headphones, repeated comparisons, from experience, the accumulation was to continue. I think so much, later gradually improved.You also can go online to look up the headset-related forums on the headset sound quality evaluation of others.I am not a headphone enthusiast, perhaps evaluation is not very place. If you have any good view, we communicate with each other, learn from each other and progress together!Earlier I wrote some personal headphones sound more superficial view, serve as a catalyst, the following are some music fans to write the post, I stick it out for all to communicate with the exchange.Quality evaluation is a matter of psychological, physiological and listening environment, listening comments, the application of technical standards for a number of aspects of the complex process, due to stage one of the "quality evaluation" and "Testing Standards" the link between there are still some different views, including the evaluation of quality, listening equipment, play spaces, audio program selected, the listener's knowledge and life experience and understanding of different music and other differences, as well as the human ear sensitivity to sound, the sound level of physiological responses (eg, like the type of sound), listening when personal feelings (ease of mind, would have exaggerated the possibility of quality evaluation, feelings of irritability and may be denied good quality), etc. .Therefore, the objective evaluation of sound quality the most important difficulties is this: How will the listener's subjective evaluation of the impact of factors on the quality reduced to a minimum! To do this is very difficult, not to mention the average person, even if received strict professional training, personnel evaluation, personal factors can not completely "indifferent"! Therefore, in order to reduce the interference of such factors to ensure the objectivity of the evaluation of sound quality, it is necessary to have a more specialized evaluation procedures, and uniform standards of professional reference with some words to express the sound quality is good or bad (the premise is the first requirement, clear technical specifications for each predicate range), because of the quality of the evaluation process more boring, here we first look at some of the professional evaluation of the quality predicate, and their specific meaning and how to apply it!Quality evaluation in general terms:First, the degree of balance: the sound representation in proportion to the frequency band, high, middle and bass with reasonable frequency characteristics, there is too much of a boost or cut frequency band situation. It also refers to multi-channel playback (such as stereo) channels of the sound pressure more consistent. It is the opposite of the word expression is "unbalanced" or "balance";Second, the intensity: a good response to the dynamic range of sound, expressed in strong and solid voice acting freely, out come, enough loudness, frequency, especially in low-frequency (100 --- 500HZ) are measured. It is described as the opposite of "pan-force" or "insufficient";Third, the definition: the sound of language can understand some of the high, music, structured, the frequency band of the signal can be well demonstrated, there are crystal clear sense. It is the word to express the opposite of "fuzzy", "ambiguous," "turbid", etc.;Fourth, the brightness: the sound inside the high-expression, the frequency of rich, high tenor fully, especially in the 2-5KHZ band of the signal to enhance the phenomenon, and the proportion of appropriate sound mix, sounds bright and active. It expressed the opposite word for "dark", "eclipsed" and so on;Five full: expression of low frequency sound in the rich high frequency moderate, bass, tenor come out, listen to a sense of warmth as the spring, comfortable and flexible. It expressed the opposite word for "thin", "dry" or "empty", etc.;Six soft: sound relaxed and not tight presentation, treble the proportion of moderate, harmonic distortion and intermodulation distortion is very small, slightly longer reverberation time, not harsh, sweet feel comfortable listening. It is the opposite of the word expression is "blunt", "harsh", "sharp" and so on;VII realism: the sound of the true extent of expression, that is to keep the sound in the process of restoring all the original features, giving the immersive feel. It is described as the opposite of "distortion" or "untrue";Eight, three-dimensional sense: the basic position expressed in the correct audio and video sound, voice and positioning line, continuity, sense of depth;Nine, a sense of space: the original sound source can be a good location and display the current playback position of the space realism, with a certain delay in the sound effects, people listening to the sound without the feeling of depression;X. presence: the sound response so faithfully the position of the instrument, the audience can identify the source of the position, giving a sense of immersive;XI, natural feeling: the sound of each frequency band of the change is smooth, the overall smooth, there is a deliberate increase or decrease the frequency, the phenomenon of compensation or modification;XII overall sense: sound and the effect it produces coherence and mastery, to form a unified whole, not divorced from the phenomenon;XIII, a sense of atmosphere: the music style, dynamic range, momentum and the performance of the music to match the form and meaning, the listener can easily enter into the performance of music to the mood in the past;Fourth, round: presentation of sound harmonic distortion, treble and volume in the moderate, smooth frequency response curve, which will not peak frequency of the phenomenon, the entire band transient response, reverberation is moderate;Fifth, flexibility: both are expressed with low intensity, but also have a certain toughness of the language, it is a measure of an important aspect of low quality, in particular in low-frequency loose and dispersed, and lively, not stiff, and there is a delay effect. It is usually described together with the fullness to low!XVI emotion: expressed in a wide dynamic range of music, and have a certain sound pressure, the term is mainly used to describe low-frequency energy, abundant;XVII strong: the low frequency sound energy expressed abundant, the speed, dispersed, cohesive high-end sound like a good degree.In the evaluation of sound quality, the general practice is to have the sound into four bands.(1) low frequency (150HZ below): low frequency is the foundation, it makes listening feels thick;(2) low frequency (150 --- 500HZ): the bass is the embodiment of intensity, the intensity of the music is strong there, depending on the band;(3) high frequency (500 --- 5000HZ): alt is the brightness of the performance of the music to see this period of uncertainty, and the impact of the entire music sound great;(4) high frequency (5000HZ above): mainly high-frequency sound clarity of the decision.In a preliminary understanding of the sound of the band's influence on the sound, the sound quality evaluation will be based on different frequency bands to use a different predicate, for example, feel the bass sounds shocking, it seems endless, this time you can use the "surging" to express the bass situation; such as bass feel comfortable listening to, fresh and the smell, toughness, this time you can use "strong", "flexible" to express; another example, crystal clear treble sounds, each instrument by clearly heard the sound, the singer's lyrics a high degree of intelligibility, this time should be "clear" to describe.Of course, describe the quality of the predicate, there are many, are not limited to those mentioned above, we can use in the evaluation process is more appropriately the sound quality, rich user-friendly words to adequately express what you think of the sound and mood music, but the principle is as far as possible and strive to express their voice heard consistent and objective. Describing the bass as the term "wind pants," "Impossible to meat", etc.; described as the violin, two gourd musical instruments such as Alto words are "full of pine scent", "tail taste" to show the words tube mysterious instrument Alto such as "Metal Sauvignon", "metallic luster can be seen", etc.; treble and clarity of description such as "penetration," "Sudden Impact" and so on.In fact, the wording of the objective quality evaluation, but listening is a kind of intangible feeling, not through reason, something illusory, and sometimes only "sense" and not "persuasion"!
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