Also known as waveguide
tapered sound guide designed to provide an acoustic impedance match between a sound source and free air
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喇叭（英語：horn）是一种用于增加声音传播效率的声学设备，其形状一端细长、一端宽大。喇叭既可用于提高发声音量，又可用于增强收音效果。
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).