What should improve next is user experience symphonious effect, it includes factor of 4 crucial point: Delay when, attenuation, frequency is answered and echo is controlled.
下一步要改良的就是用户体验和音效，它包括四个要害身分：时延、衰减、频率响应和反映节制。
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The one horn of the study, inclined condole of a TV is in housetop, it is below result put symphonious noise, they were brought for nervous at ordinary times job a few relaxed.