Microphone wind noise can corrupt outdoor recordings even when wind shields are used. When monitoring wind turbine noise, microphone wind noise is almost inevitable because measurements cannot be made in still conditions. The effect of microphone wind noise on two Amplitude Modulation (AM) metrics is quantified in a simulation, showing that even at low wind speeds of 2.5 m/s errors of over 4 dBA can result. As microphone wind noise is intermittent, a wind noise detection algorithm is used to automatically find uncorrupted sections of the recording, and so recover the true AM metrics to within ±2/±0.5 dBA.
展开▼
机译：即使使用防风罩，麦克风的风声也会破坏室外的录音。监视风力涡轮机噪声时，麦克风风噪声几乎是不可避免的，因为无法在静态条件下进行测量。在仿真中量化了麦克风风噪声对两个幅度调制（AM）指标的影响，表明即使在2.5 m / s的低风速下，也会产生超过4 dBA的误差。由于麦克风的风噪声是间歇性的，因此使用风噪声检测算法来自动查找录音的未损坏部分，从而将真实AM指标恢复到±2 /±0.5 dBA之内。
展开▼
