We have identified the problem of the degradation of bass sound from the main channel, caused by the influence of LFE, and we have proposed a solution. However, it is necessary to consider the encoder and monitor environment. In this paper, the entire process of the recording and reproduction of an LFE is described. We summarize the current state of the adverse effects caused by LFE and introduce a concrete example of the solution and the method of verification. Moreover, the current issue of reproduction in consumer equipment is described.
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