sacd og dvd-audio via hdmi

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SACD players are not permitted to digitally output an unencrypted stream of DSD. Players initially supported only analog output; later some proprietary digital interfaces such as Denon Link permitted encrypted transmission of DSD. There are now two standard digital connection methods capable of carrying DSD in encrypted form: i.Link and HDMI (version 1.2 or later, standardised in August 2005).
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The six channels of audio information can thus be sent to the amplifier by several different methods:

• The 6 audio channels can be decrypted and extracted in the player and sent to the amplifier along 6 standard analog cables.
• The 6 audio channels can be decrypted and then re-encrypted into an HDMI or IEEE-1394 (Firewire) signal and sent to the amplifier, which will then decrypt the digital signal and then extract the 6 channels of audio. HDMI and IEEE-1394 encryption are different from the DVD-A encryption and were designed as a general standard for a high quality digital interface. The amplifier has to be equipped with a valid decryption key or it won't play the disk.
• The third option is via the S/PDIF (or TOSLINK) digital interface. However, because of concerns over unauthorized copying, DVD-A players are required to handle this digital interface in one of the following ways:
  
  -Turn such an interface off completely. This option is preferred by the music publishers.
  -Downconvert the audio to a 2-channel 16-bit/48 kHz PCM signal. The music publishers are not enthusiastic about this because it permits the production of a CD-quality copy, something they still expect to sell, besides DVD-A.
  -Downconvert the audio to 2 channels, but keeping the original sample size and bit rate if the producer sets a flag on the DVD-A disc telling the player to do so.
  
• A final option is to modify the player, capturing the high resolution digital signals before they are fed to internal D/A converters and convert it to S/PDIF, giving full range digital (but only stereo) sound. There exist already do-it-yourself solutions for some players. There also exists an option to equip a DVD-A player with multiple S/PDIF outputs, for full resolution multichannel digital output. See: Six channel S/P-DIF output board.

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hel skrev:

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Jeg har også en pioneer dv-lx50 multispiller men vet ikke hdmi versjonen, noen som vet?

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bjornh skrev:

Får man ut SACD digitalt på alle plater/spillere?

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An S/PDIF digital output is available on an RCA jack and an optical port but this yields a 16-bit/44.1kHz PCM output from CDs only. When the DSD layer on an SACD is playing, the digital output is disabled

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