Automatic loudspeaker equalization method
An automatic equalization, loudspeaker technology, applied in the direction of sensors, transducer circuits, stereo systems, etc.
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[0048] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0049] The present invention first measures the impulse response of the loudspeaker system at multiple positions in the room through a microphone, determines its prototype function from multiple impulse responses, and uses an adaptive optimization algorithm to calculate the equalization filter of the prototype function; determines the loudspeaker system according to the prototype function Low frequency lower limit frequency, virtual bass enhancement is performed on the input signal lower than this frequency, so as to realize the automatic equalization of the speaker system in the whole frequency band.
[0050] Such as figure 1 The shown speaker automatic equalization system according to the present invention, its main body is made up of sound source 101, virtual bass enhancement module 102, dynamic range control 103, delay unit 104, equalizatio...
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