Small-sized equilibrium low stereo sound box system
A speaker system and stereo technology, which is applied in the direction of frequency/directional characteristic device, etc., can solve the problems of low-frequency tone and low-frequency effect of small speakers, high mechanical Q value of subwoofer, and turbidity of playback.
Inactive Publication Date: 2006-05-31
徐耀忠
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Problems solved by technology
[0002] In the research of electro-acoustic technology, people have done a lot of research on the distortion and frequency response of speakers, but it is still difficult to get good low-frequency timbre and small speakers to get good bass effect.
For example, the current general 3D technology is to output the bass (40Hz~100Hz) through the middle channel. Although this method obtains the bass output, it needs to add a subwoofer, and the mechanical Q value of many subwoofers is too high, and the playback is muddy.
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[0022] Depend on figure 1 , figure 2 , image 3 As can be seen, the small balanced bass stereo speaker system of the present invention adopts a super-inverted structure speaker. After equalization, the left speaker 10 has a resonant frequency point f 1 , there is an obvious drop point in the power range of the low frequency 300Hz, and the drop point of this frequency is f 2 . by figure 1 The frequency drop point f 2 As a benchmark, as the resonant frequency point of the right speaker 11, and in combination with hearing, the overall amplitude frequency of the sound and the overall low-frequency output capability of the speaker, properly adjust f 2 , you can get a better low-frequency sound effect. f 1 with f 2 The relationship between is: f 2 =(1.1~1.5)f 1 . image 3 It is a schematic diagram of the sound level after the low-frequency superposition of the left and right speakers 10 and 11. It can be seen from the diagram that after the low-frequency superposition o...
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The invention discloses a small balanced bass stereo speaker system. The stereophonic sound system of prior art, in order to obtain good bass effect, adopts 3D technology a lot, has three-way output, and its bass output part adopts subwoofer to play sound, and the frequency range is 40Hz~100Hz, and the present invention adopts 2 subwoofers with subwoofer to play sound. The full-channel speakers of the effect replace the 3 speakers of the 3D system. Set the low-frequency resonance frequency of one of the two small speakers to be lower and the other to be slightly higher, and the resonance frequency ratio of the two speakers is 1.1 to 1.5 times, and the bass is synthesized by the left and right speakers Obtained, the middle and high-pitched components in the sound source are reproduced according to the original channel, so the present invention can obtain stereophonic sound with strong bass effect.
Description
technical field [0001] The invention relates to electro-acoustic technology, in particular to a small balanced bass stereo speaker system. Background technique [0002] In the research of electroacoustic technology, people have done a lot of research on the distortion and frequency response of speakers, but it is still difficult to get good low-frequency timbre and small speakers to get good bass effects. For example, the current general 3D technology is to output the bass (40Hz~100Hz) through the middle channel. Although this method obtains the bass output, it needs to add a subwoofer, and the mechanical Q value of many subwoofers is too high, resulting in muddy playback. Chinese patent ZL95111607.X discloses a Q value equalization method. The method is to consciously use the speaker resonance technology to solve the relationship between the system frequency and the system Q value. The realization of the sound playback system frequency and Q value balance can be achieved T...
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IPC IPC(8): H04R1/22
Inventor 徐耀忠
Owner 徐耀忠