In the current automotive electronic products, car DVD navigation growing proportion, nearly 40% of new car owners have installed DVD car navigation needs. Just a lot of DVD products installed on the train, a step on the gas will be screamed stereo speakers, sound and image are very poor, so the purchase of car DVD navigation products should focus on the following points:
First, the sound quality
DVD is used to play music, so sound quality is very important. Therefore, be sure to ask before buying DVD sets clear that the first output DVD drive a few "V", or give the machine and the sound quality compared to other DVD drive. If the DVD drive and CD sound quality can drive one to compete with quality, cheap price will certainly not go.
Second, image and DVD machine with the amount of
DVD screen with analog and digital high-definition display screen 2. Simulate the pixel is usually 240 or 480 * 240 * 240 pixels, and are generally high-definition screen 800 * 480 pixels or higher. In addition, a good DVD dual optical drive is the assigned amount, that is, DVD, CD two kinds of drive.
Third, the navigation accuracy and ease of use
DVD manufacturers will apply a good navigation software better, less easy navigation DVD navigation process crashes, or slow navigation, navigation accuracy is relatively poor. Because a good DVD navigation using the "dual-core" model, that is, the CPU uses two independent processing systems, so that the two systems interfere with each other, navigation speed, high accuracy, easy to use.
