Glossary

Analog audio

An electrical signal that directly represents sound. Compare this to digital audio, which can also be an electrical signal, but is an indirect representation of sound. See also Digital audio.

Aspect ratio

The width of a TV screen relative to its height. Conventional TVs are 4:3 (in other words, the screen is almost square); widescreen models are 16:9 (the screen is almost twice as wide as it is high).

Chapter (DVD only)

Just as a book is divided up into several chapters, a title on a DVD disc is usually split into chapters. See also Title.

Digital audio

An indirect representation of sound by numbers. During recording, the sound is measured at discrete intervals (44,100 times a second for CD audio) by an analog- to-digital converter, generating a stream of numbers. On playback, a digital-to-analog converter generates an analog signal based on these numbers. See also Sampling frequency and Analog audio.

Dolby Digital (DVD only)

A surround sound system developed by Dolby Laboratories containing up to six channels of digital audio (front left and right, surround left and right, center and low-frequency channels). See also DTS.

DTS

A surround sound system developed by Digital Theater Systems as an alternative to Dolby Digital. DTS discs contain up to eight channels of digital audio. See also Dolby Digital.

Dynamic range

The difference between the quietest and loudest sounds possible in an audio signal (without distorting or getting lost in noise). Dolby Digital and DTS soundtracks are capable of a very wide dynamic range, delivering dramatic cinema-like effects.

MPEG video

The video format used for Video CDs and DVDs. Video CD uses the older MPEG-1 standard, while DVD uses the newer and much better quality MPEG-2 standard.

PDV-20, PDV-LC20 specifications

The Pioneer PDV-LC20 and PDV-20 are innovative portable DVD players that cater to the needs of entertainment enthusiasts, emphasizing high-quality output and user-friendly features. These devices are designed to provide a seamless viewing experience, whether at home or on the go.

The PDV-LC20 is an advanced model that boasts a 7-inch LCD screen with a resolution of 480 x 234 pixels. Its versatile design allows for flexible viewing angles, thanks to a 180-degree swivel screen. This feature not only enhances comfort but also ensures that users can enjoy their favorite content from various positions. The PDV-20, while slightly different in design, also features a robust 7-inch display, allowing it to deliver crisp images and vibrant colors.

Both models incorporate a progressive scan feature, which significantly improves video quality by presenting images in a smoother manner. This technology minimizes the flickering and enhances the overall viewing experience, making them ideal for watching movies, TV shows, and other video content.

Moreover, the PDV-LC20 and PDV-20 support a wide array of media formats, including DVD, CD, and MP3, ensuring that users have the flexibility to play different types of media. This compatibility is a key selling point, as it allows users to enjoy playlists, audio CDs, and various video formats without the need for multiple devices.

Another standout characteristic of these players is their battery life. Equipped with a long-lasting rechargeable battery, they offer extended playback time, making them perfect for long journeys or outdoor activities. Additionally, the devices come with built-in speakers that provide decent audio quality, along with an option to connect to headphones for a more personal experience.

Connectivity options further enhance the functionality of the PDV-LC20 and PDV-20. Both models come with AV outputs that allow users to connect the player to larger screens or televisions, turning them into a mini home theater setup. These features position the Pioneer PDV-LC20 and PDV-20 as strong contenders in the portable media player market, combining technology and convenience to cater to diverse entertainment needs.