Directivity optimization method for loudspeaker array
A technology of speaker array and optimization method, which is applied in frequency/direction characteristic devices, sensors, transducer circuits, etc., can solve the problem that the directivity is not easy to control, is not suitable for small and micro fields, and the optimization method of speaker array directivity is complex, etc. problem, to achieve the effect of easy directionality and simple method
Inactive Publication Date: 2011-04-06
AAC TECH PTE LTD +1
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[0003] However, the directivity optimization method of loudspeaker arrays in the related art is relatively complicated, the directivity is not easy to control, and is not suitable for small and micro fields
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[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0038] Such as figure 1 Shown, a kind of loudspeaker array directivity optimization method, this method comprises the following steps:
[0039] Step A, providing a loudspeaker array, which includes a number of loudspeaker units evenly distributed on a straight line;
[0040] Several filters are provided;
[0041] providing a signal source providing an audio input signal;
[0042] An audio analyzer is provided.
[0043] Step B. Input the audio input signal to the filter to obtain several groups of secondary audio input signals of different frequency bands. Specifically, in this embodiment, the frequency range of the audio input signal provided by the signal source is set to 600-10KHz, and three filters are set, and the filter frequencies are 600-1.2KHz, 1.2K-4KHz and 4K-10KHz respectively, then the audio The input signal is filtered by the filter to...
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The invention provides a directivity optimization method for a loudspeaker array. The method comprises the following steps of: providing the loudspeaker array which comprises a plurality of loudspeaker units uniformly distributed on a straight line; providing a plurality of filters; providing a signal source which provides audio input signals; inputting the audio input signals into the filters toacquire a plurality of groups of secondary audio input signals of different frequency bands; and according to the property of a sound array, inputting the secondary audio input signals of different frequency bands to the different loudspeaker units respectively to acquire the directivity of the loudspeaker array so as to acquire the optimized directivity of the loudspeaker array. The directivity optimization method for the loudspeaker array is simple and easy to control the directivity, and is applied in the small and micro fields.
Description
【Technical field】 [0001] The invention relates to a directivity optimization method, in particular to a loudspeaker array directivity optimization method. 【Background technique】 [0002] With the development of room acoustics, speaker arrays have entered the home audio market. A loudspeaker array includes several loudspeaker units, and its directivity is an important parameter. The directivity directly affects the performance of the loudspeaker array, and its characteristic is that the directivity gradually becomes sharper as the frequency increases. The loudspeaker array in the related art uses different digital signal processing techniques to control the phase and delay of the audio input signal input to each loudspeaker unit, thereby optimizing the directivity of the loudspeaker array to meet people's requirements for the performance of the loudspeaker array. need. [0003] However, the directivity optimization method of the loudspeaker array in the related art is rela...
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IPC IPC(8): H04R1/32H04R3/00
Inventor 汤赟
Owner AAC TECH PTE LTD