How to make stereo sound good

Author:　News Source:　Click：　Update Time：2007-09-07

The principle speaker sound

In addition to some special design speaker, the general working principle of passive speakers are mostly the same: the amplifier into the signal sent to the speaker, after a Crossover, the filtered signal and then sent to each monomer. Single voice, through air transport, the room inside the diffraction phenomena such as refraction, all the sound sent to our ears, into what we have heard voices.

The biggest influence on the sound

Would like to know why the speaker can not achieve the best sound conditions, then we should first look at the most accurate tool to KAM to listen to: headphones. Headphone amplifier is also driven by the single voice, but with the biggest difference between speakers there are several: first, sent to the headphones do not have to go through any signal within the sub-damper on the single player directly from the headphone out, thereby reducing the Crossover to the sound signal degradation and depletion. Secondly, from the headphones to the sound emitted monomer, without going through a few meters from the air and the middle may have a variety of refraction, there is no obstacle can be directly transmitted to the human ear, so the signal can be described as single milli No loss sent eardrum. After the loss of signal and interference at least, then we hear the voice of course, closest to the original signal! Third, the headphones as long as the monomer can be produced by tiny vibrations in our ears sounds great, so monomer vibration amplitude is very small, because the single campaign will not let let the headset framework of the produce significant vibration, so monomer any small movements can certainly be translated into sound waves, reached the ears.

Are there any headphones from the above description of several important places to see? One is the loss of input signal less, one is less interference from the output signal. Once you master these two basic principles, I believe there is going to sell the horn can be a better way to listen to.

Now let's take a look at why the speaker sounds like the headset can not be as precise. First, after the signal into the speaker, it will go through Crossover. Crossover from a variety of passive components such as capacitors, inductors, resistors composed of lines, these lines are like a layer of mesh-like layer, once again filter out the voice signals in the details.

Then, the voice of speakers monomer, in addition to the front by the speaker box so that we send to listen to, the monomer is also behind the energy is almost the same voice is used in the speaker box inside the suction sound-absorbing cottonIn addition to, or reflection by the speaker cabinets, bass reflex from the hole in the discharge. These speaker cabinets of energy, will result in speaker in the broadcast sing, we hand to touch box, the felt vibration. Shock what is wrong? Let us think about, horn monomer is fixed in the box, if the box itself has been in the vibration, the amplitude of small single speaker, it will be eaten by these cabinet vibrations, but can not pass on the details of the voice.

Finally, the voice of monomer is to listen to space through a variety of refraction, will be sent to our ear. If the high-frequency phenomenon of refraction is very serious, will be overshadowed by the voice of refraction monomer own voice, let us have heard a lot of little details; if the energy of low-frequency refraction serious, and there is likely to produce low-frequency standing waves will be, let us hear the unbalanced low-frequency performance.

Hands-on pre-note

Next we want to address how to make their homes in the hands of the speaker to listen better. In fact, as long as the master of these elements, to make a better speaker to listen to should be very simple matter.

It should be noted that the extent of their own hands of different sizes. As long as replacement parts involved to open the speaker of such actions, most will only give the original manufacturer warranty expired, or is to reduce the value of the product used. So I suggested that such moves to improve the speaker sound should try to pick the low-cost speaker. Why? With the low-priced speakers, mostly because of cost considerations, can not be noted that all the detail so that the sound moves nicely, so long as we make improvements to these projects, it is easy to have an immediate effect.

The speakers are usually high-priced because the costs and spent a lot of focus on the details of these effects sound a small place, so worth not low. If we will certainly modify it, not only the degree of improvement may sound little, but also may be degraded sound, it had more losses than gains.

To improve the diffraction

We start with a simple way without having to modify the speaker talked about. The easiest way is to reduce the speaker cabinet that may arise from diffraction. Diffraction of the culprit for that? Is the speaker cabinet itself. As the monomer is not the only way in front of the sound energy, as well as to extend in all directions to open the energy, so monomer next to the edges and corners at alt can easily result of diffraction. Diffraction phenomena of severe, it may interfere.

How to solve the diffraction problem? Can buy thin foam or cloth, cut into small pieces, attached to the treble monomer around (because of diffraction effects of the vast majority of those at the high-frequency, so frequency need not processing). It has noted before, many high-priced single speaker in the treble are affixed around the flannel? The idea is the same. In the paste up, I believe that most of the low-priced speaker, can hear a high-frequency have become cleaner.

More drastic approach is to listen to speakers such as Kam-FactoryWestlakeProduction of accessories like, the whole chunks of foam speaker embedded in the central. Although such an approach the visual results are poor, but the sound improvementIs absolutely obvious.

Vibration suppression

Vibration Naishi speakers worst enemy, because any vibration would make the monomer has been offset by a small amplitude. How to make box more rugged and less subject to shocks? Advanced speaker cabinets will add all kinds of reinforcement measures, such as wood frame support, coupled with the internal partitions, etc., are allowing the tiles to enhance a good way to be more rigid. If you want to box yourself to increase the rigidity, it can be considered in the case of internal walls coated with asphalt-like material, which would allow for the vibration is more immune box.

The other is the speaker cone beneath their feet or the nails or feet padded support, allowing the tiles to the floor with the vibration can be separated. If your speaker is a bookshelf, then of course, with the tripod in the horn pad between the pad material to isolate vibration. When the experimental pad materials, please note that should make full use of three-point fixation, instead of four points. Why? From the geometry point of view, three points is a real plane, while the four point is difficult to achieve a real plane. But also in the Horn of these materials under the pad, it should try to*Near the edge, and get the largest size, because the larger area of the plane can be more solid.

In addition to outside the box, we have considered the sub-installed in the speaker cabinets sound device, it may be the biggest victims of shocks? Teach a very simple Piebu, but also many senior speakers the approach works: pick up the family's hot-melt glue gun, silencers will be the whole package together! If your speaker level is not low, is likely to Crossover already made such a deal, we refer to a look.

Replacement Wiring

Internal speaker sound from the speaker terminal to the sub-devices, sub-audio device to the monomer to go through the wiring. If you've seen the inside wiring speakers will definitely began to wonder why we are spending lots of money to purchase a fever speaker line? Because the signal through the thick water pipeline into the horn as it turned out through the thin wiring inside the signal sent to the monomer! If you agree with that concern, then hands-on wiring replace these bar!

Exchange lines may not only enhance the sound quality, but also may be able to adjust the sound. If you think the sound is too sharp, or thin, it should consider the use of thick copper wire; if you want to sound more analytical power and transparency, it can be considered a change in silver wire. Only by grasping this direction, you also have the opportunity to transfer out of a pair of superior quality speakers!

In addition, you have observed a two-lane behind the speaker terminals do? Most of the middle of a two-lane terminals are gold-plated metal connections, some more luxurious would use copper or brass rod. If you replace this high-quality metal wire, then usually you can find quality will improve.

Replacement Parts

Replacement parts is the most drastic changes in even one of the. Speakers in addition to the single most difficult to change, the sub-audio device in each part are in fact buy, and the same values of the parts, there are variousDifferent grades. In front of said each sub-parts silencers, are like a filter-like, will be a layer of filtering in the minute details of the various voices. If we replace these parts better materials, then the signal will be able to more smoothly through without too many have been filtered out into the atmosphere.

What part of the most easily replaced? The role of capacitance in the low-pass filtering, bass quality, there is help; The role of the inductor is a high-pass filter, the replacement for the high frequency of the most helpful. Resistance is possible for both ends of the impact.

Active Electronic Crossover

Many people may often hear the term active electronic Crossover, no one thought about the significance of electronic sub-tone. Why take the initiative to e-Crossover will be a lot of people recognized as relatively excellent speaker design approach? Active Electronic Crossover biggest difference is the audio device will be moved to after the class before. That is, the former sub-tone-level signals to multiple post-class, and then the direct use of these post-level sub-tone-off signal driven monomer. Since the latter stage of the signal has not been a passive Crossover loss, the latter level and the coupling between two monomers can be achieved almost perfect point (remember the earlier mentioned, the best sound quality headphones there is no sub-audio devices?).

主動電子分音是個非常費事的概念嗎？ In actual fact, the vast majority of high-level car stereo is to adopt a proactive electronic Crossover, active speakers are mostly active electronic sub-audio products. So why take the initiative to electronic sub-audio is no way to become the mainstream product? The main reason is ease of use. Active Electronic Crossover will not only need more post-class, more wires, there is less flexibility in the replacement of equipment. In Japan, between the mainstream high-level audio player, sound seems to take the initiative to electronic sub-systems.

However, not every pair of speakers are able to easily conduct electronic sub-tone. Only a very small number of speakers so that you have this choice. But do not forget that your speakers plus a subwoofer active, that is, a simple electronic sub-Tone!

Take the initiative for the speaker plus a subwoofer is very simple, but there are many ways to connect. The best situation is a complete sub-tone lines, can be responsible for regeneration of ultra-low-frequency bass filter, and then filter off the first-level low-frequency signals to connect to the rear-Class. As a result, the latter class do not have to charge very low frequency driver, pushing the alt from speakers can be said to doubly easy carefree. Crossover in the past such initiatives is difficult to buy, but with multi-channel music and home theater surround the emergence of ultra-low frequency is responsible for the management of Active Crossover also learned that can be bought.

In fact, there is another choice: most of the surround preamplifier or surround amplifier are digitized within the low-frequency management line, as long as your stereo system to surround preamplifier or surround amplifier component, you can try to tune the main channel speakers into a "small", low tones into a "yes", this way, the main speaker and the subwoofer is the sound of the sub-conducting active electronically.

Plus ultra-high tone

WithDVD-AudioAndSACDThe introduction of ultra-sound next few years has become a hot commodity. Although theoretically the human ear can not hear high tones, but the increase in ultra-high sound can be heard after the sound wasCome obvious change, even if brought to listen to not only contain ultra-high frequency signalsCDNews sources, we can hear the sound of quality, ultra-high tone for the great change. Many people mistakenly think that would be noisy or a sharp increase in pitch, in fact, a large number of high-frequency, and will not make people feel sharp, be sharp, harsh conditions, mostly because of serious distortion or a space caused by high-frequency peak.

Similarly, ultra-high sound can also be used to connect active or passive way, most people typically use relatively simple passive connection method, because the increase of driving an ultra-high sound, will not have too great a burden caused by the expansion machine. Have been accompanied by ultra-sound is usually a passive Crossover, but also often offer a variety of slopes so that you experiment. As long as the simple instructions shining with the speaker wire connections, the use of ultra-high tone for the majority of users are the pieces of a relaxed and happy things.

These are simple ways to improve the speaker sound. Of course, you can improve the sound of small speakers still a lot of know-how. Members audio enthusiasts in the time reading magazines, in addition to attention to the description of sound quality, you can also pay more attention to the article inside the horn design concept for the description of each manufacturer to adjust the sound for the idea, there may be able to experiment to see themselves personally看. To do a simple minor operation to improve the speaker's voice, they might let you save large sums for the machine's budget to buy a few piecesCDHome music!