Calculate the rpm, depending on the engine sound. Through the calculation frequency, the sound is analyzed to determine the revolutions of an engine. It is necessary to indicate the characteristics of the engine prior to reading. May not work on all engines. It works worst with engines with the exhaust sound very muted and mechanical noise engines (air cooled engines). It is normal to show some value even if no motor function. Keywords: rpm, acoustic tachometer, sound, tach, rpm gauge, revolution counter, rev counter, rc, fft, tachometer 计算的旋转速度,这取决于发动机的声音。 通过计算频率,声音被分析,以确定发动机的转速。 这是必要的以指示阅读之前的发动机的特性。 可能无法在所有的引擎。它的工作原理最差的引擎与排气的声音很柔和的噪声和机械噪声引擎(风冷发动机)。 这是正常的,即使没有运动功能表现出一定的价值。 关键词:转速,声学转速表,声音,转速表,转速计,转速计数器,转速表,遥控,FFT,转速表 更多
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