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汽车音响调音攻略——汽车音响延时处理

2017-09-29 6页 doc 106KB 79阅读

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汽车音响调音攻略——汽车音响延时处理汽车音响调音攻略——汽车音响延时处理 在发烧汽车音响中要想获得好的声场和音准,特别是在做主动分频中,高档主机都具备延时调节功能,但怎样计算延时和调试就不是所有人都懂的了。这在汽车音响行业里每家都有每家的秘诀,但万变不离其宗,今天就借着这篇文章,为大家解答一二吧。 延时的概念 其实就是要将每个喇叭发出来的声音,最好同时到达你所设定的皇帝位,如驾驶位。在汽车音响的主动式分音里,最主要就是每个声道的高音,与中低音,由于不同于家用音响装在一个平面上,因此,用延迟技术,将高音与中低音到达聆听位置的时间一致;这是其一。其二,也可以不...
汽车音响调音攻略——汽车音响延时处理
汽车音响调音攻略——汽车音响延时处理 在发烧汽车音响中要想获得好的声场和音准,特别是在做主动分频中,高档主机都具备延时调节功能,但怎样计算延时和调试就不是所有人都懂的了。这在汽车音响行业里每家都有每家的秘诀,但万变不离其宗,今天就借着这篇文章,为大家解答一二吧。 延时的概念 其实就是要将每个喇叭发出来的声音,最好同时到达你所设定的皇帝位,如驾驶位。在汽车音响的主动式分音里,最主要就是每个声道的高音,与中低音,由于不同于家用音响装在一个平面上,因此,用延迟技术,将高音与中低音到达聆听位置的时间一致;这是其一。其二,也可以不需要去调左右声道平衡的BALANCE功能,(只要是汽车音响主机,都有这个功能),可以让你精确地将左右声道所还原的中心音场的位置调到你的正前方,或者车的正中央。 怎样计算延时 这和主机的品牌商的设计有关,行业里最出名的日本阿尔派是显示时间,先锋是直接用距离。 A、测量方法:各扬声器到聆听者位置的实际距离,用卷尺直接量各扬声器(高音,中低音)到聆听者的位置(有真人坐在驾驶位作参考),记录各单元到扬声器的距离。 注意:超低音不用此方法,调校方法下面有详述。如果是三分频的,中高音作为一路,中低音为一路,那么中高音的测量取两者测量距离的平均值。 B、阿尔派的主机或处理器:它是用ms(毫秒)来计算,通常一步为0.1ms。它的延时处理是参考最远距离的扬声器,其它扬声器以此为参考,依次用它们的距离差,单位为mm毫米,除以声音在空气中的速度343m/s,就可以得出这个值,如所测距离差为1.25m,那么该扬声器对参考扬声器所需要延时为:3.6ms。每个扬声器的时间延时处理,都按此方法去做。 例如后右声道的中低音,通常距离最远,例如为2.25m,前左声道的中低音例如为0.5m,那么前左声道它的计算方法是2.25-0.5=1.75m,1.75X1000/343=5.1ms。这里要求后右声道的输入值为0。 Japan guard and sui, respectively stationed counties songling, shengze, ping Wang, zhenze town and transport hub, building positions, establishment of mantell, implementing dots occupation. Then in other towns and large rural areas without the enemy garrison. Local over-abundance guerrillas in Wujiang, in which famous Cheng Wanjun, Zhao Anmin force in Taihu Lake area, strict area of Zhu Xi's Tomb, Wuzhen, Wang Hesong forces north, luqu, Lili forcefully Hao Daosheng, Chen Ayou Yixing troops each for the party. The first half of 1938, third war zone Commander of the Kuomintang and Chairman of the Jiangsu Province, Gu zhutong, appointed commander Cheng Zeren Shen Liqun and against self-defence C、先锋的主机和处理器:它是用mm毫米来计算的,通常每一步为12.7mm(半英寸)来计算,它的方法很简单,直接测量每个扬声器的距离,再输入到对应声道即可。 超低的延时 相位的关系大过距离的关系。因为超低一般还原80Hz以下的声音,其波长超过4m,这时用计算距离的方式基本上达不到要求,而且测量非常不准确。在这时,超低的延时,最主要是配合低音的相位,使超低的相位与前声场中低音相吻合。这里最主要是考量调校技师的听力,以及对超低与中低音衔接的声音真实特点所在。我们的经验是,大幅度调校超低的延时,使中低音部分听感浑然一体,强劲有力。 附录:现在市场上几款可调节延时器材 Japan guard and sui, respectively stationed counties songling, shengze, ping Wang, zhenze town and transport hub, building positions, establishment of mantell, implementing dots occupation. Then in other towns and large rural areas without the enemy garrison. Local over-abundance guerrillas in Wujiang, in which famous Cheng Wanjun, Zhao Anmin force in Taihu Lake area, strict area of Zhu Xi's Tomb, Wuzhen, Wang Hesong forces north, luqu, Lili forcefully Hao Daosheng, Chen Ayou Yixing troops each for the party. The first half of 1938, third war zone Commander of the Kuomintang and Chairman of the Jiangsu Province, Gu zhutong, appointed commander Cheng Zeren Shen Liqun and against self-defence 先锋P90 先锋P99 阿尔派9887 Japan guard and sui, respectively stationed counties songling, shengze, ping Wang, zhenze town and transport hub, building positions, establishment of mantell, implementing dots occupation. Then in other towns and large rural areas without the enemy garrison. Local over-abundance guerrillas in Wujiang, in which famous Cheng Wanjun, Zhao Anmin force in Taihu Lake area, strict area of Zhu Xi's Tomb, Wuzhen, Wang Hesong forces north, luqu, Lili forcefully Hao Daosheng, Chen Ayou Yixing troops each for the party. The first half of 1938, third war zone Commander of the Kuomintang and Chairman of the Jiangsu Province, Gu zhutong, appointed commander Cheng Zeren Shen Liqun and against self-defence 阿尔派h650 阿尔派h660 Japan guard and sui, respectively stationed counties songling, shengze, ping Wang, zhenze town and transport hub, building positions, establishment of mantell, implementing dots occupation. Then in other towns and large rural areas without the enemy garrison. Local over-abundance guerrillas in Wujiang, in which famous Cheng Wanjun, Zhao Anmin force in Taihu Lake area, strict area of Zhu Xi's Tomb, Wuzhen, Wang Hesong forces north, luqu, Lili forcefully Hao Daosheng, Chen Ayou Yixing troops each for the party. The first half of 1938, third war zone Commander of the Kuomintang and Chairman of the Jiangsu Province, Gu zhutong, appointed commander Cheng Zeren Shen Liqun and against self-defence Japan guard and sui, respectively stationed counties songling, shengze, ping Wang, zhenze town and transport hub, building positions, establishment of mantell, implementing dots occupation. Then in other towns and large rural areas without the enemy garrison. Local over-abundance guerrillas in Wujiang, in which famous Cheng Wanjun, Zhao Anmin force in Taihu Lake area, strict area of Zhu Xi's Tomb, Wuzhen, Wang Hesong forces north, luqu, Lili forcefully Hao Daosheng, Chen Ayou Yixing troops each for the party. The first half of 1938, third war zone Commander of the Kuomintang and Chairman of the Jiangsu Province, Gu zhutong, appointed commander Cheng Zeren Shen Liqun and against self-defence
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