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全高清家庭影院设备选购技巧请指点下

浏览:48次 | 提问时间: 08-03 08:42
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3个答案
红尘旧梦梦断都成空 08-03 08:43

一、首先来看的是显示设备           显示设备当然包括电视以及投影机。那么对于组建家庭*,笔者要重点推荐的是投影机,因为电视的的尺寸毕竟受限制,虽然目前市面上已经有108寸的液晶电视*,但是它的价格却几乎可以用天价来形容,而且搬运起来也不是件容易的事儿。而投影机遇不同,目前一款全高清家用投影机的价格最低只需万元左右左右,而且体积相比电视要小的多,移动起来非常方便。最重要的一点是,投影机可以轻松投射出百寸的大画面,如果空间允许的话,画面尺寸可以更大,那种视觉上的震撼绝对是不言而喻的。           另外与高端电视产品相比,投影机不但画面大、亮度好、重量轻、屏幕尺寸还不受限制之外,同时还可以兼容多种*信号,能与电视机相连接,可以接收DVD、VCD、LD等设备的*信号和计算机信号。在众多优点的力撑下,投影机也越来越受宠!二、说完显示设备再来看看音频设备(音箱)           谈到家庭*的音响产品,市面上可以说是多如牛毛,而最理想的家庭*音响,除了低音炮之外,其它各个声道最好力求一致,这样才能达到最佳的效果。否则就会劳神伤财,因为每个品牌的音箱无论是从外形还是音色来看都有非常大的差异,而大片一般都拥有环绕的动态音效,这种音效也必须得是一致性高的音箱才能完美的表达出来。           如果是想要达到上述的效果,家庭*至少要配备有4声道,包括左前、右前、左后和右后4个声道,当然更好的还有5.1、6.1、7.1等等。就拿5声道举例来说,5个音箱组成环绕音箱,它可以表达很多画面外的*,比如一架F15战斗机从画面中飞到观众的身后,这时候如果没有了环绕音箱你听到的声音只会集中在前方,那样就会缺乏真实感,再或者说画面中是在一个丛林,如果你只是能听到前面有动物的叫声,但是身后却是一片寂静,这如何能有身临其境的感觉呢?  除了声道之外,还有低音炮。它通常用点数字的方式来表示。比如,5个声道再加一个重低音那就是5.1声道,这里的.1指的就是重低音了其主要的目的是对整个音箱系统的低频做个补充。而5.1声道也已广泛运用于各类传统*和家庭*中,一些比较知名的声音录制压缩格式,譬如杜比AC-   3(DolbyDigital)、DTS等都是以5.1声音系统为技术蓝本的,其中“5.1”声道,则是一个专门设计的超低音声道,这一声道可以产生频响范围20~120Hz的超低音。  在5.1声道系统里采用左(L)、中(C)、右(R)、左后(LS)、右后(RS)五个方向输出声音,使人产生犹如身临音乐厅的感觉。五个声道相互*其中“.1”声道,则是一个专门设计的超低音声道。正是因为前后左右都有喇叭,所以就会产生被音乐包围的真实感。不过,如果你的主音箱(5个或者7个)低音非常强劲,不加重低音也可以,但这时候必须把*器的重低音关掉,让此部分信号分到主音箱。  不过,通常在*音轨中,超低音的能量主要集中在60Hz左右,不少*中甚至含有低至20Hz的*,现场的最高声压级可以达到105dB可以说到了震耳*聋的地步。可以说缺少低音炮的*很难说是完整的。至于如何挑选一只靓低音炮,简单来说低音单元口径越大越好尺寸最好不要小于30cm,看清楚技术规格,当然也以听效果。

Prsoner 08-03 08:51

方法是家庭*的屏幕要选对。一套家庭*的视觉感官上是不是优质的,除了要看投影仪的质量之外,屏幕也是一个很重要的因素。我们要按照自己家里的尺寸去进行屏幕的选购,一般来说,是2.5比3,又或者是2比2.5是最合适的,而如果屏幕是100英寸的大小,我们的沙发就应该安设在4-5米之外的距离。而且适当的距离才不会让我们的头部保持长时间的仰度,使得颈椎出问题。屏幕的大小都差不多,所以比较占地方,而且在不需要用到的时候也影响室内的美观。

影子你为何可以瘦胖自如 08-03 09:00

你好:1、分辨率与画面比例。分辨率越高,投影机的图像越清晰,当然价格也越高。从长远的角度看,如果经济条件允许,最好购买物理分辨率为XGA的投影机,它显示的效果更清晰,亮丽。但对于家用来说,目前SVGA的投影机完全可以满足大多数人的需求。  2、亮度与对比度。一般家庭用户的使用环境面积,如果在20到50平方米,一般的家用投影机亮度都在800流明到1200流明左右。所以说在选购投影机时,考虑亮度的大小没有本质意义,在购买时亮度可以忽略不计。关于对比度,那就是越高越好。对比度越高,图像更加清晰醒目,色彩鲜明艳丽,细节展现效果好。  3、安装灵活性和它的重要性。这点注意的是变焦范围和镜头移位。  4、成本问题。家用投影机价格差别较大,从1万元到5万元,甚至更高。一般来说,欧美、*品牌产品的价格略高,国产和台系品牌的产品的价格较低。对于大多数消费者来说,一万元左右全高清的产品便可满足家用需要。投影机利润较高,购买时绝对可经砍价,一般报价1万多元的产品,砍掉5%是毫无问题。灯泡是投影机的*,看你的预算来选择灯泡吧

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