音质和图像是购买车载DVD导航系统应注意
发布时间:2017-05-10 点击浏览:次
在现在轿车电子商品中,车载DVD导航所占比例越来越大,快到40%的新车车主都有装置车载DVD导航需要。因而,生产、贴牌各种DVD导航商品很多涌现,而商品的质量差异也超乎你的幻想。
In the car now electronic goods, the proportion of vehicle DVD navigation is growing, fast to 40% of the new car owners have devices DVD navigation needs. Thus, the production, OEM DVD navigation products a lot of emerging, and the quality of the product is also beyond your fantasy.
很多车载DVD导航商品刚一装上车,一踩油门音响喇叭就会宣布尖叫声,声响和图画都十分差,因而在选购车载DVD导航商品时要重点留意如下几点:
A lot of car DVD navigation goods just installed on the car, a step on the throttle sound speaker will be announced screams, sounds and pictures are very poor, and therefore in the purchase of car navigation products DVD should focus on the following points:
一、音质
Sound quality
DVD是用来播放音乐的,因而音质好坏十分重要。因而,选购DVD之前必定要问明白这台DVD机的前量输出是几"V",或许把这台机器和别的DVD机进行音质比照。假如DVD机的音质能和CD机音质一比高低,价格当然也不会便宜到哪里。
DVD is used to play music, so sound quality is very important. Thus, before the purchase of DVD must ask to understand the DVD machine before the amount of output is a few "V", perhaps this machine and other DVD machine for sound quality CF. If the DVD machine sound and CD player sound quality to compete, the price will certainly not cheap where.
二、图画和DVD机配量
Two, drawing and DVD machine allocation
DVD屏幕有模仿屏和数字高清屏2种。模仿屏的像素通常是240*240或480*240像素,而高清屏通常都是800*480像素或更高。别的,好的DVD都是选用双光驱配量,即DVD、CD两种光驱。
DVD screen imitation screen and digital high-definition screen 2. The pixel mimic screen is usually 240*240 or 480*240 pixels, high-definition screen is usually 800*480 pixels or higher. In addition, a good DVD is the use of dual drive with the amount, that is, DVD, CD two CD-ROM.
三、车载导航的准确性和运用便捷
Three, the accuracy of the vehicle navigation and easy to use
好的DVD厂家都会套用比较好的导航软件,较差的DVD导航简单在导航的过程中死机,或导航速度慢,导航的准确性也比较差。由于好的DVD导航选用的是“双核”形式,即选用两个独立的CPU处理体系,这么两个体系互不搅扰,导航速度快,准确性高,运用方便。
Good DVD manufacturers will apply a relatively good navigation software, poor navigation DVD simple navigation in the process of crashes, or slow navigation, navigation accuracy is relatively poor. As a good choice of DVD navigation is "dual core" form, that is, the use of two independent CPU processing system, so that the two systems do not interfere with each other, navigation speed, high accuracy, easy to use.