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Topic: Super audio compact disc

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	Super audio compact disc
		Super audio CD (SACD) is a derivative of the compact disc, with a larger storage capacity that is used to record music at a higher bit-rate.
		Although the same physical size as the compact disc SACD uses a different kind of digital audio signal, Direct Strem Digital (DSD).
		SACD can include a include a CD layer so that the disc can be played back on a traditional CD player, but with out the benefits of DSD.
	www.ebroadcast.com.au /lookup/encyclopedia/su/Super_audio_CD.html (118 words)

	compact disc - HighBeam Encyclopedia
		COMPACT DISC [compact disc] (CD), a small plastic disc used for the storage of digital data.
		As originally developed for audio systems, the sound signal is sampled at a rate of 44,100 times a second, then each sample is measured and digitally encoded on the 4 3/4 in (12 cm) disc as a series of microscopic pits on an otherwise polished surface.
		Super audio compact disc: a new approach to audio recording and reproduction.
	www.encyclopedia.com /doc/1E1-compactd.html (407 words)

	Technology --Sampling Super Audio Compact Disc
		SACD was designed to accommodate six: left, centre, and right in front; left and right behind; and a sub-woofer for enhanced bass effect.
		Fine as the Kleiber disc is, sound quality escalates for re-issues of two Herbert von Karajan discs from the same era.
		SACD stereo, on the other hand, is much more tolerant of normal seating arrangements.
	www.scena.org /lsm/sm8-10/technologies.htm (816 words)

	Super Audio CD - Wikipedia, the free encyclopedia
		Super Audio CD (SACD) is a read-only optical audio disc aimed at providing much higher fidelity digital audio reproduction than the compact disc.
		SACD uses a very different technology from CD and DVD-Audio to encode its audio data, a 1-bit delta-sigma modulation process known as Direct Stream Digital at the very high sampling rate of 2.8224 MegaHertz — with the typical sampling rate present on audio CDs currently being 44.1kHz.
		SACDs must always contain a 2-channel stereo mix and may optionally contain a surround mix (usually the 5.1 layout) as well.
	en.wikipedia.org /wiki/Super_audio_compact_disc (2171 words)

	Untitled Document
		While the Compact Disc was an important accomplishment in music reproduction, discerning listeners soon demanded even more — that's why Sony and Philips, the inventors of CD, have created the new Super Audio Compact Disc (SACD).
		SACDs have enough room for both a two-channel mix and a multi-channel version of the same music, not to mention text and graphics.
		Used by Sony to develop everything from Compact Disc and DAT to professional DASH recorders and digital mixing consoles, PCM technology offered astounding clarity over previous processes — until now A fundamental breakthrough in audio technology, Direct Stream Digital® encoding represents the evolution of digital audio — unsurpassed in reproductive authenticity.
	www.elusivedisc.com /sacd.htm (696 words)

	DVD-A vs SACD
		In case you haven’t noticed, the high-quality audio disc marketplace is in the middle of a format war, reminiscent of the days of VHS vs. Betamax.
		DSD is the technology used in the Super Audio CD (SACD) system released by Sony, Philips and their affiliates in competition with DVD-A. SACD proponents say that it sounds significantly superior to PCM and DVD-A, with a smoother high-frequency performance and added detail and clarity.
		However, the truth is that being able to play an SACD on a regular CD player is only a benefit if the new disc sells at the same price as a compact disc – which is not the case, thereby locking out the majority of today’s price-sensitive record buyers.
	www.avrev.com /equip/dvdavssacd (1862 words)

	Philips Super Audio CD/DVD-Video Player SACD1000 reviewed on AudioRevolution.com
		SACD is a development by Sony and Philips as a successor to the Compact Disc (and competitor to DVD-Audio), but the two companies have taken a very different attitude to delivering high-quality audio.
		Another big difference between SACD and DVD-A is that the former are – at present, at least – decidedly audio discs, not audio-visual discs.
		SACD’s frequency response extends beyond 50 kHz (according to the write-up in the SACD1000 manual, which might be considered by some to be a bit conservative: there has been talk of SACD going up to 100 kHz in some cases, and in theory there is no reason why not).
	www.avrev.com /equip/philipssacd/index.html (2963 words)

	SACD / SUPER AUDIO COMPACT DISC: The Sound of Oversampling and Noise Shaping.
		The Philips engineers developped the 120 mm (4.7 inches) disc which holds the original signal and the various corrections which are necessary to read the stored signal correctly.
		Because of the fact that SACD uses DSD and not PCM, the frequency band is not half of the 2.8224 MHz.
		In order to use the full benefit of the SACD with its Direct Stream Digital high resolution, and to have the possibility of editing the recording, it is of course necessary to make recordings with a high resolution medium like the analog tape recorder or any high resolution PCM format.
	www.soundfountain.com /amb/noisesheng.html (2231 words)

	Untitled Document
		SACD discs offer frequency response to nearly 100kHz, providing much broader bandwidth and more linear phase characteristics than what CD can offer, and SACD has far greater dynamic range than conventional CD, allowing the subtleties of music to be more naturally reproduced.
		Super Audio Compact Discs using DSD recording technology have been very favorably received by members of the high-end audio community including yours truly.
		SACD is the biggest single advance in audio quality that I've heard in the last forty years or so.
	www.surroundmusic.net /articles/boon.html (1923 words)

	A Sony - sacd hifi retailer, Sony Super Audio Compact Cassette- Hi-Fi Corner - Scotland
		Sony SACD players were first shown in Scotland by Hifi Corner who successfully in conjunction with Radio Scotland and Sony broadcast the SACD in 2000.This interview was first published in 2000.
		SACD is a new format being taken up by a number of manufacturers.
		SACD is capable of up to six channels of high resolution audio and importantly the lossless coding sytem for SACD, Direct Stream Transfer (DST), offers the highest quality for all six channels (ie there are no variations in sampling frequency/bit rate after decoding).
	www.hificorner.co.uk /tips/sacd.htm (1434 words)

	Super Audio CD Overview - TimeForDVD.com (Site not responding. Last check: 2007-11-03)
		Super Audio Compact Disc (Super Audio CD or SACD for short) is a new, revolutionary audio format that promises high-resolution audio in either two-channel stereo or multi-channel audio.
		The audio quality is suppose to far surpass that of the audio Compact Disc (CD) format, with unsurpassed frequency response, sonic transparency, and more analog-like in terms music reproduction.
		The 5.1-channel analog audio inputs are required to pass the multi-channel audio signals from the SACD player to the receiver/pre-amplifier.
	www.timefordvd.com /tutorial/SACDOverview.shtml (1748 words)

	[No title]
		For this reason, the backward-compatible hybrid disc is an option and is not used by all companies releasing SACDs.
		SACD discs are DVD discs in that they use the same sector size, error correction and modulation as DVD discs and the same file system (UDF plus ISO 9660).
		In contrast, as an extension of Compact Disc, SACD is a "pure audio" format, the natural choice for those who demand highest quality sound.
	www.wired4music.com /SACD_FAQ.htm (786 words)

	Untitled Document
		SACD players are equipped with optical pick-ups that emit a 650 nanometer wavelength laserlight that is reflected by the DSD layer.
		The new Super Audio Compact Disc format, created by Sony and Philips, provides unprecedented sound quality - starting with two-channel stereo today and extending to full multi-channel reproduction in the future.
		The SACD format supports several disc configurations, including a Hybrid SACD designed to be completely compatible with the millions of CD players in the market today.
	www.elusivedisc.com /sacdworks.htm (464 words)

	ZAREX HD - Audio Video Location Recording and Post-Production Services for the Classical Music Industry
		ZAREX HD's ability to master and author SACD (Super Audio Compact Disc) and other complex audio formats in house, and its ability to produce packaging graphics in house, is an efficient solution to budget-conscious and time-constrained labels and arts organizations who wish to remain competitive in the emerging SACD marketplace.
		Complementing the audio at ZAREX HD is its capability to capture live or closed-session performances in High-Definition video using simultaneous multiple-camera angles.
		Audio mixdown, sweetening, editing and mastering to 5.1 surround format (suitable for SACD MultiChannel) and to stereo in DSD and PCM formats.
	www.zarex.com /StudioHD.html (555 words)

	Chris - Super Audio CD Format
		It looks like SACD is winning the race to be the industry standard for high quality stereo and multi-channel surround sound.
		With the increasing number of Super Audio CD players available in the market and more and more major labels supporting SACD, the objective is clear, that is to make Super Audio CD a standard for the industry.
		By making titles available on Super Audio CD this move helps to drive the growth of this high quality, secure music format, with its many benefits for consumers and recording artists.
	www.1388.com /articles/chris_report/09_supercd.htm (712 words)

	SACD (Super Audio Compact Disc) Index
		If you happen to know of an audio recording done in the SACD Surround format that is not listed here, please pass it on.
		BIS SACD 1109 2 layer hybrid disc DSD multi channel surround and DSD 2-channel stereo, Håkan Hardenberger - Trumpet, Simon Preston - The organ of Aarhus Cathedral, Denmark
		SACD 231 David Johansen and the Harry Smiths.
	members.cox.net /surround/sacd/sacddisc.htm (638 words)

	DVD-Audio vs. Super Audio Compact Disc
		The CD differed substantially from its predecessor in that it was the first digital audio format available to consumers, using a system known as Pulse Code Modulation or PCM to encode the audio signals.
		This compression is based on an algorithm that predicts which components of the audio signal you will be unable to hear because they’ll be psychoacoustically masked (a fancy term meaning “drowned out”) by other components in the same signal.
		This was introduced as a two-channel stereo format in the fall of 1999 and as a six-channel format (which, again, can serve as a 5.1 system) in the spring of 2001.
	www.scena.org /lsm/sm7-1/dvd-en.html (815 words)

	Boston Audio Society - Apr 2003 meeting
		The Boston Audio Society is hosting a seminar and demonstration on multi-channel Super Audio Compact Disc (SACD) recording and post-production techniques and practices.
		This is a rare opportunity for interested audio professionals to hear and explore the advances in sound reproduction made possible by SACD technology.
		Super Audio CD is a new format developed by Philips and Sony.
	www.bostonaudiosociety.org /meetings/03-04_meeting.htm (418 words)

	StereoTimes -- Sony SCD-777ES Super Audio Compact Disc Player
		These are exciting times, what with the dawn of the Super Audio CD format coinciding with the emergence of enhancement technologies such as 24/96 upsampling from Perpetual Technologies, and 64-times oversampling from Wadia Digital.
		Although the new SACD format’s unknown future is certainly impacting the market reaction, it is up to Sony to invest advertisement resources into showcasing the ability of the players in both Redbook and Super Audio CDs playback.
		In the foreseeable future, the Compact Disc will most likely continue its reign as the primary music media, and music lovers and audiophiles alike have no choice but to observe the SACD situation passively while increasing their investment into the CD.
	www.stereotimes.com /trans052101.shtml (4667 words)

	Is DVD-Audio or Super Audio CD In Your Future?
		SACD is now capable of delivering six full-bandwidth DSD channels that encompass those extraordinary standards.
		I've left the philosophical/musical controversy of whether listeners want to feel in the middle of a band, with instruments mixed to the sides and rear, or prefer the perspective of the band and performers in front, for another time.
		If you'd like a taste of one of the new multichannel audio discs, try the SACD "New Favorite," from Alison Kraus and Union Station (Rounder), which mixes the dobro guitar in front and rear channels with Kraus's vocals in all three front channels.
	www.axiomaudio.com /archives/DVDA.html (1007 words)

	Untitled Document
		Everyone present at this test was familiar with the outstanding, lifelike sound of his recordings, and we have had heard direct comparisons between the original master tapes and the compact discs and vinyl records made from these masters.
		The compact disc format is bandwidth limited due to the 44.1k sample rate, necessitating steep filter slopes below the Nyquist frequency (half the sample rate) to prevent aliasing.
		Super Audio Compact Discs will play in all the disc machines that you have right now, due to the "red book" CD layer.
	www.surroundmusic.net /articles/perfection.html (1608 words)

	DSD and Super Audio Compact Disc
		The SACD is essentially a DVD, it uses the same sector size, error correction and modulation as a DVD disc and the same file system (UDF plus ISO 9660), but the information contained on the format is using the Direct Stream Digital DSD technology.
		The Compact Disc CD is the wellknown optical disk storage media that is designed to store audio, video, and computer data in a digital format.
		A hybrid disc contains two discrete layers of data, the top layer of data is Red Book audio compatible with existing CD players and the bottom layer is the SACD layer where the high-resolution DSD data is stored.
	www.proav.de /data/DSD.html (683 words)

	OPTICAL DISC FEATURES
		A hybrid disc, dual layer, high density, multichannel products; the Super Audio Compact Disc incorporates and exploits all the advancements and achievements in Optical Disc science.
		Super Audio Compact Disc accomplishes so many goals because it embodies several powerful, new technologies.
		Super Bit Mapping Directs clownconversion enables much of the DSD sound quality to be heard on conventional CD players.
	www.opticaldisc-systems.com /98SepOct/optical_disc_featurespg51.htm (304 words)

	Scarlet Book - a definition from Whatis.com
		SACD uses Direct Stream Digital (DSD) recording, a proprietary Sony technology that converts an analog waveform to a 1-bit signal for direct recording, instead of the pulse code modulation (PCM) and filtering used by standard CDs.
		In addition to DSD and the hybrid disk technology, Scarlet Book specifications include: Super Bit Mapping Direct, a proprietary downconversion method that enables improved audio when the disks are played on an ordinary CD player; Direct Stream Transfer, a type of coding that increases data capacity; and a digital watermark to protect against piracy.
		SACD is in competition with a similar product, DVD-Audio, as the format that will replace standard audio CD.
	whatis.techtarget.com /definition/0,,sid9_gci514000,00.html (380 words)

	sacd
		For all the improvements in PCM digital audio, is was clear that better sound would require a new technology.
		Both Philips and Sony decided that a new approach to audio recording and reproduction was needed hence the Super Audio Compact Disc (SACD) standard was born.
		Along with the sonic improvements, SACD also offers an active copyright management system, a copyright identification system and both visible and invisible digital watermarking and is the perfect medium for archiving.
	www.merging.com /2002/html/sacd.htm (740 words)

	BBPC News \| BuildOrBuy - SACD (Super Audio CD), DSD (Direct Stream Digital) Audio Technology
		Hybrid discs include the SACD layer as well as an Audio CD layer so they can be played in standard CD players.
		The (DSD) Direct Stream Digital Audio Technology used in SACD discs provides 1-bit encoding at 2,822,400 samples per second.
		The SACD Text Editor provides a convenient way to edit SACD text information prescribed in the SACD format for creation of text master data used in the authoring process.
	www.buildorbuy.org /sacd.html (413 words)

	Heads Up: Super Audio Compact Discs (SACD)
		Now with the development of the Super Audio Compact Disc™ (SACD), which utilizes the extraordinary Direct Stream Digital™ (DSD) recording technology, the foundation exists to launch a new era of high-resolution stereo and multi-channel surround recordings.
		The new Super Audio Compact Disc format, created by Sony and Philips, provides unprecedented sound quality in stereo and discrete multi-channel surround.
		Thirteen tracks represent a back-to-basics approach to the music after years of battling the preconceptions and misperceptions of the jazz cognoscenti - many of whom insisted that founder Jay Beckenstein and his quintet were somehow not privy to the jazz legacy.
	www.headsup.com /sacd.asp (1260 words)

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