MATLAB 阵列信号处理：计算麦克风时差

% 定义两个麦克风的的位置 mic1_pos = [0 0 0]; mic2_pos = [0.1 0 0];

% 生成一个随机信号 signal = randn(1, 10000);

% 在两个麦克风上采集信号 mic1_signal = signal + 0.1 * randn(1, 10000); mic2_signal = signal + 0.2 * randn(1, 10000);

% 计算两个麦克风之间的时差 xcorr_result = xcorr(mic1_signal, mic2_signal); [max_val, max_idx] = max(xcorr_result); delay_samples = length(mic1_signal) - max_idx;

% 将时差转换为时间 fs = 44100; % 采样率为44.1kHz delay_time = delay_samples / fs;

% 输出结果 fprintf('The time delay between mic1 and mic2 is %.2f seconds. ', delay_time);