Car horn works

Automotive electric horn from the core, the magnetic coils, contacts, armature, diaphragm and other components. When the driver presses the horn switch, the current through the coil through contacts, under the armature coil produces a magnetic suction force the diaphragm to move the armature to move the contacts open, the current is interrupted, the magnetic coils disappeared, diaphragm spring in their bookshelf computer speaker flexibility and hereinafter together to restore the role of the armature in situ, contact closure circuit is switched on again, the current flowing through the coil generates a magnetic force through contacts, repeat the above action. This cycle repeated continuously vibrating diaphragm, which emit sound. Wooden Computer Speaker bSoundboard rigid connection with the diaphragm, smooth sound vibrations can be more pleasant.

Car audio installation

As is known to all, people mainly from receiving positive noises in my ears, in the narrow space car, reasonable arrangement of the speaker position, make the person is in the front seat can be perceived from the windshield clear voice, rather than from the foot, in 后排座 also try to make people feel voice from front, not behind my ear. Moreover due to the Multimedia Speaker of the left and right speakers deviation, want to make different seat area can feel good music balance, will need a different placement will be the speaker to correct deviation distance. From this perspective, the difficulty of the car stereo positioning is much more than the home stereo. Thus, the design of car audio installation is need professional technology to complete. According to expert introduction, a good car audio installation, to meet the four requirements: one is the stereo matching set is reasonable, and bookshelf computer speaker performance, space and the owner requirements phase, appropriate to decorate in the process does not destroy interior is the best. Second, the sound field location accurate, has a good audio-visual effect, build and space sound field, sound stereo, continuous spectrum curve is smooth, can maintain full range from low to high. 3 it is the appropriate sound pressure, a set of high quality car audio when sounds up to 130 decibels can still maintain the voice is not distortion, restore power to get maximum play; Four is the level of the installation, including the design of the terminal connections, decoration and harmony of the original car, thermal design and the design of the overall power amplifier.

Horn according to its pronunciation power has the branch of electric horn and air horn

Horn according to its pronunciation power has the branch of electric horn and air horn; According to the points with bookshelf computer speaker shape, cylindrical and three types of basin shape; According to the audio can be divided into high and low sounds the horn; According to the connection mode can be divided into single and double line system horn; There can be divided by a non-contact touch point (common type) electric horn and contactless electric horn (electronic). Among them, the air horn is mainly used for heavy bookshelf speaker truck with air brake, electric horn has simple structure, small volume, light quality, sound sweet and easy maintenance characteristics, thus obtained is widely used in small and medium-sized vehicles. Should be paid attention to when adjusting the core and the clearance must be uniform around the armature, a right, not skewed, otherwise easily happened collided with each other at work, make the speaker produces shrill noise.

Speech refers to the speaker at a particular time and space environment

Speech refers to the speaker at a particular time and space environment, the spoken language as the main bookshelf computer speaker to the public is a particular problem or event published his views. In is essentially a campaign speech, the ultimate goal is to persuade, education, to inspire and motivate a large audience. Speech is the process of the speaker to "play" and "speak" to make the audience to produce consistent with bookshelf speaker expectations of the change process. There is no doubt that the speaker's quality is the determinant of success. The speaker's ideology and moral character and cultural conservation, etc. Have a great impact on the effect of the speech. So, a successful speech to what the speaker's psychological quality requirements? This article from the psychology of "cognition, emotion, meaning" the three major psychological processes to analyze the speaker should have psychological quality structure, believe that the speaker will improve their own quality structure. Rich imagination. In writing speeches and the preparation of the rehearsal lecturer in thinking and memory activities, if can the situation of speech (such as the reaction of the audience, the atmosphere of the court, etc.) to imagine, and adjust accordingly (e.g., design different opening), not only help improve the quality of speech, but also can make the speech more close to the atmosphere. Many successful speakers in the preparation of the speech is good at scene of the actual speech bold imagination, there are some in the process of the speaker in the speech of "savoir faire" is not actually used his quick wits but the result of the prior assumptions to a situation.

When the speaker sound in a room

When the speaker sound in a room, the bookshelf speaker can hear directly from the speaker's voice, this is the direct sound field (indirectfield), but can also be heard from the wall, ceiling and floor reflected sound, this is called reflection sound field (reverberantfield). Listeners hear the direct sound field, reflect the voice of the sound field, the more hours, the sound is better, because the voice of the sound field can be controlled directly, but reflect the voice of the sound field is unable to control, can only put the direct a breeder to sound and bookshelf computer speaker, originally the clarity of sound is reduced, so sit nearer the speakers closer to the audience will feel a little better sound effect, and the audience is likely to be in the rear they heard the reflection of sound more sound than the direct sound field, sound effect will be more bad and lower resolution. Sometimes a band performance on the stage, because they are not listening to the speaker, and on both sides of the main sound box is positioned near the location of the mouth, bands and singers have heard no sound from the direct sound field put, they don't stand position is called direct sound field, sound effect will not good, of course, this will also affect the band's performance level, make the audience hear is not very good performance.