A novel audio-bamboo tube speaker, Bamboo Speakers
Keywords: a novel audio-production of bamboo tube speakers
With the increase in the quality of the speaker, many high-power, small caliber, wide frequency band high quality speakers continue to introduce, fundamentally improve the sound effect of small volume speakers. The bamboo tube speaker made is based on the horn, while designing the bamboo musical instrument principle. Doing the box with bamboo tube, not only is convenient, low cost, and the tool is simple, and the production process is easier. First, the power and size of the speaker use a bamboo tube with a diameter of 152mm, a length of 348mm, and selects a bass horn with 5 inches, the maximum power 100W. It is designed to create a pair of main speakers, dismissed with a singular amplifier. Professional manufactured wooden Fidek speaker. In addition, different types of small bamboo tube speakers are produced according to different needs, such as listening, multimedia and other two-channel connecting speakers, the effect is good. Second, the selection of bamboo tubes and the horn fixing I choose bamboo tube according to the speaker diameter. It can also be selected according to the bamboo tube diameter, as long as the inner diameter of the bamboo tube is equal to or greater than the horn diameter. The "U" type (i.e., the bamboo festival is naturally closed) bamboo tube, the speaker is installed on the other, which is easy to make a mono joker. The bamboo tube (i.e., the bamboo festival in the middle) is selected to make a two-channel connecting speaker, and the speaker is mounted on both ends of the bamboo tube, and the intermediate is naturally isolated. When the "U" bamboo tube is obtained, the bamboo will prolong 100 mm outside of the bamboo, and the effect is to increase the length of the box and increase the weight of the cabinet. Regarding the fixing problem of the speaker, if the diameter of the bamboo tube is less than the speaker diameter, the inner wall of the bamboo tube can be removed to the speaker. If the diameter of the bamboo tube is larger than the speaker diameter, the speaker is fixed to the bamboo tube with hot melt glue. If the outer diameter of the bamboo tube is equal to the speaker diameter, the horn is fixed to the top of the bamboo tube with a screw. Third, the inverting hole and the bracket set the inverted phase of the bamboo tube. Different from other speakers. According to the experiment, if there is a different hole in the different positions of the bamboo speaker, the sound effect is significantly changed, and the bamboo tube speaker produced is inverted by this. After multi-experiment, the position and size of the inverted hole is: from the tail of the active case, equal to the position of the bamboo tube diameter, which is equal to the long square hole having half the bamboo tube radius, which can reach inverted. The stent is used to support the foot of the speaker, take the diameter of the speaker, and the length of the bamboo tube is 150mm shorter than the speaker, which is half a half, with half of the back to back to the speaker side, and the height and angle of the stent can be made as needed. Fourth, the sound absorbing material is treated with the absorbing material and the increasing tank of the tank with the box, and the sound absorbing material (such as sponge) is installed in the effective case, and the number is adjusted according to the actual auditory adjustment, the bamboo tube speaker is small, the weight is light. It is easy to vibrate, and the speaker is located at one end of the bamboo tube, the overall weight is unbalanced, and the method is to be applied to the pitch and stones in the tail length of the speaker. For a two-channel congoing speaker, the "bottom" of the left and right speakers is performed, and the weight is determined as needed. After making it, brush two clear lacquers, making the surface more smooth. Since the bamboo tube speaker has the above characteristics, especially the position of the inverted hole hole, the design size, and the adjustment of the sound absorbing material can effectively change the sound effect, as long as these "parameters" are adjusted, it can achieve the best. Figure 1 is a schematic illustration of a single speaker. Figure 2 is a schematic diagram of a two-channel connecting speaker.
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