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Como o Echo ocorre?

Os espelhos fluirão as imagens e enviarão a luz para trás. As paredes também enviam as vozes de volta. Se você ficar um pouco mais longe de uma parede alta ou um grande penhasco, você vai ouvir a sua voz girando para trás alguns segundos depois.

Se uma onda sonora encontra uma parede ou uma superfície de rocha alta e larga, ele gira para trás em direção à sua fonte. É assim que o eco acontece. Se o som extraído é curto e as ondas sonoras atingem a bateria como normal, o eco é ouvido claramente. Vestígios do som permanecem no ouvido por 1/10 segundos.

Porque a velocidade do som no ar é 340 metros por segundo, a distância entre a fonte de áudio ea bateria para ser um eco deve ser de pelo menos 17 metros.

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