Digital Audio ?

    Simply at the start we have to know that there are many digital audio formats and for each format there is a standard. Hence for each standard there is a media that supports such a standard. But because of compression, most of the Digital Audio formats cause a signal loss or loss of information compared to the real analogue audio data. Like pixels in photos of Digital Cameras VS film Camera. Digital Audio is the same, Compact Disk Digital Audio VS Analogue Master Tapes or even LP disks have larger audio spectrum than a digital format.

    But not after Dolby’s latest release of the Dolby TRUEHD format which is supported by the BLU.RAY Disk.

HDMI

High Definition Multimedia Interface (HDMI) is the first and only digital interface to combine uncompressed high-definition video, multi-channel audio and intelligent format and command data in a single digital interface. HDMI switching, providing the most advanced method of delivering high quality video signals to a home theater system to enable the reproduction of DVD and satellite TV sources with HD quality. HDMI can also send the digital audio signals from sources such as DVD Audio, CD, Dolby Digital and DTS to provide simple components connections.

DOLBY TRUE HD

Dolby® TrueHD is Dolby’s next-generation lossless technology developed for high-definition disc-based media. Dolby TrueHD delivers tantalizing sound that is bit-for-bit identical to the studio master, unlocking the true high-definition entertainment experience on next-generation discs. When coupled with high-definition video, Dolby TrueHD offers an unprecedented home theater experience that lets you enjoy sound as stunning as the high-definition picture.

DTS-HD ADVANCED DIGITAL OUT

You can enjoy DTS-HD Master audio by upgrading to a Blu-ray Disc player with DTS-HD Advanced Digital Out and new AV Receiver with DTS-HD Master Audio decoding. Both player and AV receiver will need to be equipped with new HDMI Version 1.3 outputs and inputs. Connect the player and receiver with an HDMI cable. The DTS-HD bit stream will pass through the player and HDMI cable to be decoded by the AV receiver. This way you can enjoy DTS-HD Master Audio at up to 7.1 channels at 96 kHz/24 bit sound that is bit-for-bit identical to the studio master.

DTS DIGITAL SURROUND

The basic DTS 5.1 channel sound format. Uses a higher data rate than Dolby Digital.

DOLBY DIGITAL EX

This surround format from Dolby Digital includes an added center rear channel. The rear center channel is actually matrixed into the two rear channels, and is extracted upon playback. (Formerly called Dolby Digital Surround EX, or Dolby Digital Matrix 6.1.)

Blu-ray Disc

Blu-ray, also known as Blu-ray Disc (BD) is the name of a next-generation optical disc format. The format was developed to enable recording, rewriting and playback of high-definition video (HD), as well as storing large amounts of data. The format offers more than five times the storage capacity of traditional DVDs and can hold up to 25GB on a single-layer disc and 50GB on a dual-layer disc. This extra capacity combined with the use of advanced video and audio codecs will offer consumers an unprecedented HD experience.

DVD-AUDIO / SUPER AUDIO CD READY

DVD-Audio is an extension of the highly popular DVD format, distinguished by its capability to deliver high quality multi-channel audio capability previously unavailable in traditional packaged audio media.

SUPER AUDIO CD

DVD Players that support Super Audio CD use a technology called Direct Stream Digital (DSD) to convert music into a digital signal that can be stored on a disc. Compared to the traditional PCM method (the technology used for CD), DSD offers a much higher resolution by following more closely the original waveform of music. With a frequency response of over 100kHz and a dynamic range over 120dB across the audible frequency range – some 64 times higher resolution then CD - Super Audio CD offers music reproduction that reveals details you just can’t hear on a normal CD.

Meridian Lossless Packing

Also known as Packed PCM (PPCM), is a proprietary lossless compression technique for compressing PCM audio data. MLP developed by Meridian Audio, Ltd. MLP is the standard lossless compression method for DVD-Audio content and typically provides about 2:1 compression on most music material.

HD DVD or High-Definition/Density Digital Versatile Disc is an obsolete high-density optical disc format for storing data and high definition video. HD DVD was designed principally by Toshiba, and was envisaged to be the successor to the standard DVD format. However, in February 2008, Toshiba abandoned the format, announcing it would no longer develop or manufacture HD DVD players or drives

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