Acomdata.com PDVD7 technical specifications Dolby Digital See AC-3

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Composite Video (CVBS) - The recording and transmission of video which mixes the color information and synchronization signals togeth- er. NTSC, PAL and SECAM are the primary composite video color TV standards used worldwide.

DAC (Digital to Analog Converter) – A device that converts digital pulses into analog signals. For example, a DVD player will have a video DAC and an audio DAC that converts the digital video and audio data stored on a DVD into analog video and audio signals that can be seen and heard via the screen and speakers respectively.

Dolby Digital - See AC-3.

Dolby Pro Logic - A surround system where a 4-channel audio is recorded as 2 channel and is then restored to 4 channels for playback.

DSP (Digital Signal Processor) - A special-purpose processor used for process- ing digital signals for various applications.

DTS- (Digital Theatre Sound) - A digital audio encoding technology developed by Lucas Labs for movie theaters, and subsequently for home theater. Like AC-3, DTS provides 5.1 channel audio, but uses less compression.

DVD (Digital Versatile Disc) - A type of optical disc that uses very similar technology as CDs but has a much greater capacity due to higher recording density. Whereas CDs are recorded on only one side, DVDs can be recorded on both sides and can contain two recording layers per side for even greater storage capacity.

DVD-Audio - With the highest possible sound quality currently available for digital recordings and the ability to store video and still images as well as music, DVD-Audio is touted by some as the next generation in music discs. Compared to CDs that provide

44.1KHz/16-bit resolution, DVD-Audio pro- vides up to 192 KHz/24-bit resolution for higher fidelity sound. Also, where CDs offer two-channel audio (stereo), DVD-Audio offers