Super Audio CD ( SACD ) is an optical disc format for audio storage introduced in 1999. It was developed jointly by Sony and Philips Electronics and intended to be the successor to the compact disc (CD) format.
30-414: Body Talk may refer to: Albums [ edit ] Body Talk (George Benson album) , 1973 Body Talk (Imagination album) , 1981 Body Talk (The Wallets album) , 1988 Body Talk Pt. 1 , a 2010 mini-album by Robyn Body Talk Pt. 2 , a 2010 mini-album by Robyn Body Talk Pt. 3 , a 2010 mini-album by Robyn Body Talk (Robyn album) ,
60-618: A DSD copy of the HD stream. Sound quality parameters achievable by the Red Book CD-DA and SACD formats compared with the limits of human hearing are as follows: In September 2007, the Audio Engineering Society published the results of a year-long trial, in which a range of subjects—including professional recording engineers—were asked to discern the difference between high-resolution audio sources (including SACD and DVD-Audio ) and
90-444: A frequency response of 20 kHz can be achieved along with a dynamic range of nearly 120 dB, which is about the same dynamic range as PCM audio with a resolution of 20 bits. To reduce the space and bandwidth requirements of DSD, a lossless data compression method called Direct Stream Transfer ( DST ) is used. DST compression is compulsory for multi-channel regions and optional for stereo regions. It typically compresses by
120-677: A 2010 album by Robyn comprising 3-part Body Talk mini-albums Songs [ edit ] "Body Talk" (The Deele song) , 1983 "Body Talk" (Foxes song) , 2015 "Body Talk" (Imagination song) , 1981 "Body Talk" (Koo De Tah song) , 1985 "Body Talk" (Majid Jordan song) , 2017 "Body Talk" (Poison song) , 1993 "Body Talk" (Ratt song) , 1986 "Body Talk", song by John Otway "Body Talk", song by Kix from their album Cool Kids "Body Talk", song by Baccara from their 1979 album Colours "Body Talk", song by The Knack from their 1991 album Serious Fun "Bodytalk", song by twlv from his EP Contents ½ " Body Talks ",
150-1146: A 2014 study, however, Marui et al. found that under double-blind conditions, listeners were able to distinguish between PCM (192 kHz/24 bits) and DSD (2.8 MHz) or DSD (5.6 MHz) recording formats, preferring the qualitative features of DSD, but could not discriminate between the two DSD formats. The Sony SCD-1 player was introduced concurrently with the SACD format in 1999, at a price of approximately US$ 5,000. It weighed over 26 kilograms (57 lb) and played two-channel SACDs and Red Book CDs only. Electronics manufacturers, including Onkyo , Denon , Marantz , Pioneer and Yamaha offer or offered SACD players. Sony has made in-car SACD players. In order to play back SACD content digitally without any conversion, some players are able to offer an output carrying encrypted streams of DSD, either via IEEE 1394 or more commonly, HDMI . SACD players are not permitted to offer an output carrying an unencrypted stream of DSD. The first two generations of Sony's PlayStation 3 game console were capable of reading SACD discs. Starting with
180-428: A 2018 song by The Struts and Kesha Other [ edit ] Body Talk , play written by Stephen Daldry 1996 Body Talk , 1982 hardcore adult movie starring Angelique Pettyjohn Body Talk , 1990 unsold game show pilot starring Vicki Lawrence See also [ edit ] Body language Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with
210-422: A compact disc audio (44.1 kHz/16 bit) conversion of the same source material under double-blind test conditions. Out of 554 trials, there were 276 correct answers, a 49.8% success rate corresponding almost exactly to the 50% that would have been expected by chance guessing alone. When the level of the signal was elevated by 14 dB or more, the test subjects were able to detect the higher noise floor of
240-782: A factor of between two and three, allowing a disc to contain 80 minutes of both 2-channel and 5.1-channel sound. Direct Stream Transfer compression was standardized as an amendment to the MPEG-4 Audio standard, ISO/IEC 14496-3:2001/Amd 6:2005 (Lossless coding of oversampled audio), in 2005. It contains the DSD and DST definitions as described in the Super Audio CD Specification. The MPEG-4 DST provides lossless coding of oversampled audio signals. Target applications of DST are archiving and storage of 1-bit oversampled audio signals and SA-CD. A reference implementation of MPEG-4 DST
270-552: A meta-analysis on 20 of the published tests that included sufficient experimental detail and data. In a paper published in the July 2016 issue of the AES Journal, Reiss says that, although the individual tests had mixed results, and that the effect was "small and difficult to detect," the overall result was that trained listeners could distinguish between high-resolution recordings and their CD equivalents under blind conditions: "Overall, there
300-564: A standard CD player. The Super Audio CD format was introduced in 1999, and is defined by the Scarlet Book standard document. Philips and Crest Digital partnered in May 2002 to develop and install the first SACD hybrid disc production line in the United States, with a production capacity of up to three million discs per year. SACD did not achieve the level of growth that compact discs enjoyed in
330-754: A stereo mix on the standard CD layer. Some popular artists have released new recordings on SACD. Sales figures for Sting 's Sacred Love (2003) album reached number one on SACD sales charts in four European countries in June 2004. Between 2007 and 2008, the rock band Genesis re-released all of their studio albums across three SACD box sets. Each album in these sets contains both new stereo and 5.1 mixes. The original stereo mixes were not included. The US & Canada versions do not use SACD but CD instead. By August 2009 443 labels had released one or more SACDs. Instead of depending on major label support, some orchestras and artists have released SACDs on their own. For instance,
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#1732870103310360-516: Is a 1973 studio album by American guitarist George Benson , released on CTI Records . All tracks are written by George Benson except where noted This album was reissued on the Super Audio CD format in September 2018 by UK label Dutton Vocalion , remastered in both stereo and surround sound from the original analogue tapes by Michael J.Dutton. The surround sound portion of the disc features
390-421: Is determined by numbers encoded in the bit stream. Both modulations require neighboring samples to reconstruct the original waveform; the more neighboring samples, the lower the frequency that can be encoded. DSD is 1-bit , has a sampling rate of 2.8224 MHz , and makes use of noise shaping quantization techniques in order to push 1-bit quantization noise up to inaudible ultrasonic frequencies. This gives
420-611: The Chicago Symphony Orchestra started the Chicago Resound label to provide full and burgeoning support for high-resolution SACD hybrid discs, and the London Symphony Orchestra established their own LSO Live label. Many SACD discs that were released from 2000 to 2005 are now out of print and available only on the used market. By 2009, the major record companies were no longer regularly releasing discs in
450-457: The quadraphonic mixes of the album, made available for the first time in over 40 years. Production Super Audio CD The SACD format allows multiple audio channels (i.e. surround sound or multichannel sound). It also provides a higher bit rate and longer playing time than a conventional CD. An SACD is designed to be played on an SACD player. A hybrid SACD contains a Compact Disc Digital Audio (CDDA) layer and can also be played on
480-572: The 1980s, and was not accepted by the mainstream market. By 2007, SACD had failed to make a significant impact in the marketplace; consumers were increasingly downloading low-resolution music files over the internet rather than buying music on physical disc formats. A small and niche market for SACD has remained, serving the audiophile community. By October 2009, record companies had published more than 6,000 SACD releases, slightly more than half of which were classical music . Jazz and popular music albums, mainly remastered previous releases, were
510-565: The CD layer. Conversely, if a conventional CD is placed into an SACD player, the laser will read the disc as a CD since there is no SACD layer. SACD audio is stored in Direct Stream Digital (DSD) format using pulse-density modulation (PDM) where audio amplitude is determined by the varying proportion of 1s and 0s. This contrasts with compact disc and conventional computer audio systems using pulse-code modulation (PCM) where audio amplitude
540-454: The CD-quality loop easily. The authors commented: Now, it is very difficult to use negative results to prove the inaudibility of any given phenomenon or process. There is always the remote possibility that a different system or more finely attuned pair of ears would reveal a difference. But we have gathered enough data, using sufficiently varied and capable systems and listeners, to state that
570-538: The SACD layer. Some reissues retain the mixes of earlier multi-channel formats (examples include the 1973 quadraphonic mix of Mike Oldfield 's Tubular Bells and the 1957 three-channel stereo recording by the Chicago Symphony Orchestra of Mussorgsky 's Pictures at an Exhibition , reissued on SACD in 2001 and 2004 respectively). Objective lenses in conventional CD players have a longer working distance, or focal length , than lenses designed for SACD players. In SACD-capable DVD, Blu-ray and Ultra HD Blu-ray players,
600-631: The audio data, with a key encoded on a special area of the disc that is only readable by a licensed SACD device. The HD layer of an SACD disc cannot be played back on computer CD/DVD drives, and SACDs can only be manufactured at the disc replication facilities in Shizuoka and Salzburg . Nonetheless, very early versions of the PlayStation 3 with an SACD-compatible drive and appropriate firmware and certain Blu-ray players can use specialized software to extract
630-649: The burden of proof has now shifted. Further claims that careful 16/44.1 encoding audibly degrades high resolution signals must be supported by properly controlled double-blind tests. Following criticism that the original published results of the study were not sufficiently detailed, the AES published a list of the audio equipment and recordings used during the tests. Since the Meyer–Moran study in 2007, approximately 80 studies have been published on high-resolution audio, about half of which included blind tests. Joshua Reiss performed
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#1732870103310660-636: The format a greater dynamic range and wider frequency response than the CD. The SACD format is capable of delivering a dynamic range of 120 dB from 20 Hz to 20 kHz and an extended frequency response up to 100 kHz, although most available players list an upper limit of 70–90 kHz, and practical limits reduce this to 50 kHz. Because of the nature of sigma-delta converters , DSD and PCM cannot be directly compared. DSD's frequency response can be as high as 100 kHz, but frequencies that high compete with high levels of ultrasonic quantization noise . With appropriate low-pass filtering ,
690-489: The format, with new releases confined to the smaller labels. SACD discs have identical physical dimensions as standard compact discs. The areal density of the disc is the same as a DVD . There are three types of disc: A stereo SACD recording has an uncompressed rate of 5.6 Mbit/s , four times the rate for Red Book CD stereo audio. Commercial releases commonly include both surround sound (five full-range plus LFE multi-channel) and stereo (dual-channel) mixes on
720-542: The next two genres most represented. Many popular artists have released some or all of their back catalog on SACD. Pink Floyd 's album The Dark Side of the Moon (1973) sold over 800,000 copies by June 2004 in its SACD Surround Sound edition. The Who 's rock opera Tommy (1969), and Roxy Music 's Avalon (1982), were released on SACD to take advantage of the format's multi-channel capability. All three albums were remixed in 5.1 surround , and released as hybrid SACDs with
750-423: The red DVD laser is used for reading SACDs. This means that when a hybrid SACD is placed into a conventional CD player, the infrared laser beam passes through the SACD layer and is reflected by the CD layer at the standard 1.2 mm distance, and the SACD layer is out of focus. When the same disc is placed into an SACD player, the red laser is reflected by the SACD layer (at 0.6 mm distance) before it can reach
780-512: The third generation (introduced October 2007), SACD playback was removed. All PlayStation 3 models, however, will play DSD Disc format. The PlayStation 3 was capable of converting multi-channel DSD to lossy 1.5 Mbit/s DTS for playback over S/PDIF using the 2.00 system software . The subsequent revision removed the feature. Several brands have introduced (mostly high-end ) Blu-ray Disc and Ultra HD Blu-ray players that can play SACD discs. Unofficial playback of SACD disc images on
810-480: The title Body Talk . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Body_Talk&oldid=1185150643 " Category : Disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Body Talk (George Benson album) Body Talk
840-629: Was "only slightly better than chance." Contradictory results have been found when comparing DSD and high-resolution PCM formats. Double-blind listening tests in 2004 between DSD and 24-bit, 176.4 kHz PCM recordings reported that among test subjects no significant differences could be heard. DSD advocates and equipment manufacturers continue to assert an improvement in sound quality above PCM 24-bit 176.4 kHz. A 2003 study found that despite both formats' extended frequency responses, people could not distinguish audio with information above 21 kHz from audio without such high-frequency content. In
870-450: Was a small but statistically significant ability to discriminate between standard-quality audio (44.1 or 48 kHz, 16 bit) and high-resolution audio (beyond standard quality). When subjects were trained, the ability to discriminate was far more significant." Hiroshi Nittono pointed out that the results in Reiss's paper showed that the ability to distinguish high-resolution audio from CD-quality audio
900-520: Was published as ISO/IEC 14496-5:2001/Amd.10:2007 in 2007. SACD has several copy protection features at the physical level, which made the digital content of SACD discs difficult to copy until the jailbreak of the PlayStation 3 . The content may be copyable without SACD quality by resorting to the analog hole , or ripping the conventional 700 MB layer on hybrid discs. Copy protection schemes include physical pit modulation and 80-bit encryption of
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