SACD dan DVD-Audio

Kami membahas tentang manfaat berinvestasi dalam komponen digital resolusi tinggi. Seperti yang kami sebutkan bahwa ada dua format resolusi tinggi berbasis disk: DVD-Audio dan Super Audio CD.

Berikut adalah tautan yang mencantumkan lebih dari 5500 judul SACD yang tersedia. Pada 2009, masih ada beberapa judul SACD yang dirilis meskipun jelas bahwa itu akan tetap menjadi format niche. Terlepas dari apa yang terjadi di pasar AS, sepertinya SACD akan tetap berkembang terus karena permintaan SACD terus berlanjut di negara-negara Eropa dan Asia tertentu terutama Jepang dan Jerman. Negara-negara lain termasuk Belanda dan Belgia juga memiliki basis penggemar khusus. Selain itu China juga merangkul format tersebut.

Berikut adalah tautan yang mencantumkan lebih dari 1500 judul DVD-A yang tersedia - dan di sini ada tautan lain dengan daftar judul. Namun pada 2009, kami tidak mengetahui adanya judul DVD-A baru yang dirilis.

Agar Anda dapat memahami perbedaan antara format SACD dan DVD-Audio, berikut adalah perbandingan di antara mereka.

 DVD-AudioSuper Audio Compact Disc
Digital Coding Linear Pulse Code Modulation (LPCM) Direct Stream Digital (DSD)
Bit Rate Option of 16, 20, or 24 bit 1 bit
Frequency Response DC-96kHz/channel at 192kHz sampling DC-100kHz/channel
Dynamic Range >144dB 120dB
Disc Type CD-size, single-sided or dual-sided, with up to two high-density layers per side; written spec is silent on inclusion of Redbook CD layer, but not prohibited CD-size, single-sided, choice of one high-density layer, two high-density layers, or one HD layer paired with one Redbook CD layer
Lossless Compression Technology Meridian Lossless Packing (MLP) (about 2:1 data reduction, option on disc, mandatory in player) Direct Stream Transfer lossless packing (2:1 data reduction, optional on disc)
Number of High-Density Channels Up to six full-bandwidth 96kHz/24-bit channels for a multi-channel program (plus optional 2-channel mix of the multi-channel program residing on the same high-density layer for playback on 2-channel systems such as portables); OR 2-channel 192kHz program at 16, 20, or 24 bits Up to six channels of DSD material for a multichannel program (plus optional 2-channel DSD mix residing on the same high-density layer for playback on 2-channel systems). This is in addition to an optional Redbook CD layer
Maximum Playback Time Examples (on one layer, with compression, depending on material compressed) 77-123 minutes of 6-channel 96kHz/24-bit material, OR up to 136 minutes of 2-channel 192kHz/24-bit material, OR 67 minutes of 5-channel 96/24 material plus 2-channel 96/24 version of same material on the same player. Up to 74 minutes of 2-channel DSD w/o lossless packing plus up to 74 minutes of 6-channel DSD w/ lossless packing. (Lossless packing of 6-channel material needed to accommodate both DSD version on same player.)
Multichannel-to-Two-Channel Fold Down Smart Content (artist adds data to each multi-channel song to instruct player to mix down each song to 2 channels in real time; optional on disc, mandatory in player. Not Available
Future Coding Options Coding such as DTS or DSD permitted, if approved by DVD Forum as long as LPCM version resides on same layer for compatibility with all DVD-Audio players Not Available
DVD-Video Player Compatibility Step-up "universal" DVD players will play DVD-Video and DVD-Audio discs; Step-up DVD-ROM players also to play DVD-Audio discs Not addressed in spec, but decision left up to each manufacturer to build DVD-Video players that incorporate SACD playback. Some consumer-grade suppliers intend to offer all-in-one players for CD, DVD-Audio, DVD-Video, and SACD.
Other Optional Features Song titles, lyrics, and graphics; multiple still pictures per song; full-motion video content conforming to DVD-Video standard (reducing total disc playback time) for playback on universal and DVD-Video Players. DVD-Video music video discs are allowed to offer bonus 2-channel LPCM audio tracks playable on DVD-Audio-only players Song titles, lyrics, and graphics, multiple still pictures, full-motion video permitted, but video format not specified.



Blu-ray

Blu-ray adalah format resolusi tinggi yang mana profil Blu-ray 3.0 adalah format untuk audio saja. Namun masih harus dilihat apakah ada konten substansial yang benar-benar akan pernah dirilis.

Tentu saja, semakin banyak cakram konser Blu-ray yang hebat sekarang tersedia yang memiliki audio resolusi tinggi - juga video 1080i atau 1080p. Jelas 1080p lebih disukai! Tentu saja untuk melihat dan mendengar ini, Anda memerlukan pengaturan home theater.

Sumber: http://www.goodwinshighend.com