The speaker refers to a device that can convert audio signals into sound.In laymans terms, it refers to the self -containing power amplifier in the body of the speaker box or the subwoofer box. After the audio signal is enlarged, the speaker itself will release the sound to make its sound lighter.
Speaker vocal
Principles of Vocal: Vibrator Vibration Vocal (Vibration Audio)+Paper Trumnia Speaker Speaking
The traditional (ordinary) audio and vibration audio audio have both vibrating sounds of vibration audio and speaker sounds of traditional speakers.
The medium hybrid audio mainly combines the vibration vibration vibration vibration vibration vibration vibrant sound technical principle and the principle of ordinary audio paper drums, which combines the two; in fact, the medium resonance hybrid sound is still well understood.It is combined with traditional audio speakers. In general, it is the combination of traditional ordinary audio and vibration audio.
Speaker practical technique
Replacement bass
Removal bass is a very tricky thing. It has added a lot of trouble to the speaker designer and audio enthusiasts.But this is also a challenge. The potential returns have fully proved that it is worth it to improve the subwoofer.
The core of the problem is that the speaker is not running in an isolated environment, but many speaker designers and Hi-Fi audio enthusiasts often ignore this. Designers always use the help of the sound room to be isolated from the actual environment.product.Practice has proved that the sound quality of the speaker has a very closely interacting relationship between the sound quality and the actual listening room, and this relationship is particularly close in the family environment.Everyone knows that the frequency of human ear listening is about the lowest sound from 20Hz to 20000Hz, and its span is about 10 octa -degree sounds.central.Therefore, the subwoofer itself is almost limited to the lowest octa -degree sound (20Hz ~ 40Hz) and the second octa -level sound (40 ~ 80Hz) range above, although simple low frequencies are indispensable in ordinary voice.But it plays a very important role in creating musics authenticity and strength.
If you do not use ultra -bass speakers and rely on ordinary speakers to create a bass, this speaker is not only large in size, but also consumes very power.The ultra -subwoofer has a small volume, not noticeable in the room, and has many advantages in the box with its own amplifier and filter, so it has no additional requirements for the system.In the system, there are ultra -bass speakers specializing in bass, and other channels can use smaller speakers. The configuration and use of the entire system are more flexible and convenient.Generally speaking, it is necessary to use a large volume of speakers, but as long as a pair of ordinary small speakers are placed on the wall, it is enough to expand the loading sound to the heavy bass range.Part of the reason is that placed on the wall helps to increase the bass of 50Hz ~ 100Hz, and the other reason is that the "resident resonance" caused by the shape and size of the room provides "room gain effect".The common problem of most commercially available ultra -bass speakers is that the low -end rolling frequency cannot be extended to less than 50Hz. Its frequency response cannot reach the ideal match with the ordinary speakers of other channels, and some of their frequency response often constitute a harmful overlap phenomenon.Essence
Influence
Each room, whether it is a concert hall or an ordinary familys living room, there is a phenomenon in waves. It is the main source of the subwoofers problem.The frequency of the resident wave is closely related to the size of the room.In the concert hall with a large indoor space, the frequencies in waves occur in the strongest bass and second sound areas, which is lower than the minimum frequency of the low music instrument, so it will not cause adverse effects on the subwoofer.However, in the small room of ordinary families, because the size and space of the room are small, the frequency of the resident wave will be higher and enter the bass area of ??the music, and it overlaps with the latter to worse the sound quality.While providing a "room gain", the resident wave will also make the frequency response of the subwoofer very uneven, that is, it will increase the response of certain frequency and offset the response of other frequencies.In addition, different rooms have different resident modes, and it is related to many factors such as wall materials, furniture furnishings, listening positions and speakers in the room, and it is difficult to accurately predict it.
Create a subwoofer in the room
Everyone knows that in order to make the speaker make a sound, you must use the vibration of the sound basin to move the air molecules, which arouses the sound waves with the same frequency as the sound basin vibration in the air.Due to the long wavelength of the bass and the vibration area of ??the bass speaker sound basin, it is necessary to produce a strong bass indoors, and the sound basin must move a large amount of air molecules at the unit time.To achieve this, ultra -subwoofer speakers usually use large vibration membranes, small punching pins or small vibration membranes, and large -scale sound basins.The latters sound basin has a small caliber, which is conducive to reducing the volume of the entire bass speaker, and has the advantages of high power and high loudness, which has become the mainstream of modern ultra -bass speakers.
However, put the ultra -bass speaker in a huge speaker, although you can reproduce some shocking explosive sounds and landslide sound effects such as some shocking explosions in the movie, but when listening to music, you can replace a lot of high highs.The intensity bass can make people feel unpleasant.In addition, research and practical results have proven that the loudness of the ultra -subwoofer is greater than that of other speakers in the system.These are the reason why the volume of modern ultra -bass speakers is small.
Platter and connection
The variability and unpredictability of indoor waves in the interior waves have no way to tolerate them.Although some computer software provides some interesting methods to control the resident waves, it cannot completely solve the problem of resident waves.Fortunately, the wavelength of the bass is much larger than the size of the ordinary room, and the bass is actually without direction.Using this feature, general users only need to use separate ultra -bass speakers to get almost infinite freedom to test the best placement of bass speakers in the room.Although it is not as important as the main speaker, different positions still have different sound effects.Here are three ways of swinging the three ultra -subwoofer. They each have their own advantages and disadvantages. Readers can choose according to the experimental results.
Place the ultra -subwoofer at the corner.This method helps to avoid indoor sound reflexes, making the sound of the replacement more powerful and vivid.But at this time, the indoor mode is more motivated, which will make the bass response not flat enough.Because the super bass box in the entire system is the farthest from the listening position, the bass heard will be slightly delayed than the sound of the main speaker.When placing, the ultra -bass box should keep at least 10cm distance from the wall.
Place the ultra -bass speaker with the main speaker on the same line.At this time, the distance between the super bass speaker and the main speaker and the listening position is equal, so the direct sound from the three speakers is almost at the same time to reach the ear of the listener at the same time, and there will be no time difference.The disadvantage of this position is that the indoor reflection sound is increased, and these delayed reflex sounds will reduce the resolution of the replaceable sound.
Place the ultra -subwoofer near the listening area.This method is worth trying, especially for some rooms that are difficult to get the best audio effect, because it minimizes the degree of incentives of the indoor mode, and it also greatly shortens the transmission path and bass to the listeners ears of the direct sound.The time, but also makes the indoor reflex sound more mixed.
Another less scientific method is to place the ultra -bass speaker on the seats that usually listen to and let it play music, and then slowly move around it and listen carefully at the same time until the bass sound quality is the most.A little bit.This point is the best place for placing ultra -bass speakers, and finally placed it there.
In addition to the two sets of high levels (speakers) output terminals with two sets of high levels (speakers) output terminals connected to the left and right channel speakers, they also have a low level (line level) output terminal, a source ultra -bass speakerThere is a corresponding input terminal.In order to make the system have the best audio effect when playing music and movie shows, in addition to the two sets of speaker levels of the super bass speakers received the corresponding output terminals of the AV amplifier, the line levels of the two should also be onThe terminal is also connected correspondingly.The advantage of this connection is that when the system plays dual -channel stereo music and 5.1 -channel movies, the bass can effectively enhance.

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