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MECHANICAL-ECHOLOGICAL, MECHANICAL-CLANGICAL, STEREO-ECHOLOGICAL, STEREO-CLANGICAL TRANSFER PREPARATION AND TRANSFER CALCULATION PREPARATION
MECHANICAL-ECHOLOGICAL, MECHANICAL-CLANGICAL, STEREO-ECHOLOGICAL, STEREO-CLANGICAL TRANSFER PREPARATION AND TRANSFER CALCULATION PREPARATION
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机译:机械-生态,机械-临床,立体-生态,立体-线性传输准备和传输计算准备
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摘要
Stereo sound signals are reproduced directly from loudspeakers (SP(L), SP(R)). By using a sum signal and a difference signal of the stereo sound signals as a reference signal, and according to a cross spectrum calculation of the reference signal with a microphone-collected sound signal, calculation is performed to obtain transfer functions of four sound transfer systems between the loudspeakers and microphones (MC(L), MC(R)). The transfer functions obtained are subjected to inverse Fourier transform to obtain impulse responses, which are set in filter means (40-1 to 40-4) to create echo cancel signals and perform echo canceling.
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