降噪耳机的原理

一张技术信息图,讲解耳机的主动降噪,画成一只耳罩围绕耳朵的剖面。外界的环境声波遇上耳机生成的反相「反噪声」波,两者相互抵消归于安静——以叠加的蓝橙波形加耳罩内一个小麦克风与扬声器图标表现。时尚的现代扁平风格,深藏青、青与珊瑚色配色,浅灰底。左上角粗体标题「降噪耳机的原理」,编号说明,一个波形图例。

A technology infographic explaining active noise cancelling in headphones, drawn as a cross-section of an ear cup around an ear. Incoming ambient sound waves meet an inverted 'anti-noise' wave generated by the headphone, and the two flatten to silence - shown with layered blue and orange waveforms plus a small mic and speaker icon inside. Sleek modern flat style, a deep-navy, cyan and coral palette on light grey. Bold title 'How Noise Cancelling Works' top-left, numbered captions, a waveform legend.