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FM立体声广播主要通过对L、R路双声道信源的现场重现来获得立体声广播的重现立体感,所以L、R必须严格遵守其录制时的电平及相位的关系。在立体声广播的测试中有电平差及相位差这一体现立体声广播的重要指标(当然还有隔离度)。
FM Stereo Broadcasting mainly uses stereo reproduction of stereophonic sound from live reproduction of L and R dual channel sources, so L and R must strictly observe the relationship between the level and the phase of recording. Stereo radio test in the level difference and phase difference of this important indicator of stereo broadcast (of course, isolation).