Alpine IVA D106 Owner's Manual - Page 72

Information About DVDs Music CDs and DVDs have grooves (tracks) in which the digital data is recorded. The data is represented as microscopic pits recorded into the track - these pits are read by a laser beam to play the disc. On DVDs, the density of the tracks and pits is twice that of CDs, so DVDs can contain more data in less space. CDs Terminology Dolby Digital Dolby Digital is a digital audio compression technology developed by Dolby Laboratories that allows large quantities of audio data to be efficiently recorded on discs. It is compatible with audio signals from mono (1 channel) all the way up to 5.1channel surround sound. The signals for the different channels are completely independent, and since the sound is high quality digital there is no loss of sound quality. Minimum pit length 0.9 µm 1.2 mm DVDs Track pitch 1.6 µm Minimum pit length - 0.6 mm 0.9 µm 0.6 mm Track pitch 0.74 µm A 12 cm disc can contain one movie or about four hours of music. In addition, DVDs provide sharp picture quality with vivid colors thanks to a horizontal resolution of over 500 lines (compared to less than 300 for VHS tape). In addition, DVDs offer a variety of functions. Multiple audio* (page 25) Movies can be recorded in up to eight languages. The desired language can be selected from the unit. Subtitles function* (page 25) Movies can include subtitles in up to 32 languages. The desired subtitle language can be selected from the unit. Multi angle function* (page 25) When the DVD contains a movie shot from multiple angles, the desired angle can be selected from the unit. Multi story function* With this function, a single movie includes various story lines. You can select different story lines to view various versions of the same movie. Operation differs from disc to disc. Story line selection screens including instructions appear during the movie. Just follow the instructions. * The functions audio languages, subtitle languages, angles, etc., differ from disc to disc. For details, refer to the disc's instructions. 70-EN Center speaker Front speakers Rear speakers Subwoofer Speaker layout for enjoying Dolby Digital sound/DTS sound DTS This is a home-use digital sound format of the DTS Sound System. This is a high quality sound system, developed by DTS, Inc. for use in movie theaters. DTS has six independent sound tracks. The theater presentation is fully realized in the home and other settings. DTS is the abbreviation for Digital Theater System. * To enjoy DTS surround sound you need the separately sold DTS digital audio processor (PXA-H700, etc.). The DVD video software must also have a DTS sound track. The IVA-D106 has a built-in DTS 2-channel audio decoder. Analog audio outputs are available. Dolby Pro Logic II Dolby Pro Logic II plays 2-channel sources in 5 channels over the entire frequency range. This is done with an advance, high sound quality matrix surround decoder which draws out the spatial properties of the original recording without adding any sounds to or changing the sound of the source. * The separately sold digital audio processor (PXA-H700, etc.) is required to enjoy Dolby Pro Logic II surround sound. Linear PCM audio (LPCM) LPCM is a signal recording format used for music CDs. Whereas music CDs are recorded at 44.1 kHz/16 bits, DVDs are recorded at 48 kHz/16 bits to 96 kHz/24 bits, thereby achieving higher sound quality than music CDs. Rating levels (parental lock) This is a function of the DVD for restricting the viewing age as stipulated by laws in different countries. The way in which viewing is restricted differs from DVD to DVD. Sometimes the DVD cannot be played at all, other times certain scenes are skipped, and other times certain scenes are replaced with other scenes.