Browse Definitions :
Definition

Scarlet Book

The Scarlet Book is Philips and Sony's 1999 specification document for Super Audio Compact Disc ( SACD ), a high-resolution audio format that features complex six-channel sound. SACD discs can contain three different versions of the same material.

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. DSD uses lossless compression (so-called because none of the data is lost in the compression process) and a sampling rate of 2.8 MHz to improve the complexity and realism of sound. DSD enables a frequency response of 100 kHz and a dynamic range of 120 dB (the ratio of the softest to the loudest sound - 120 db is also the approximate dynamic range of human hearing) on all channels.

Scarlet Book specifications include three separate options for disk format: single-layer DSD, dual-layer DSD, or dual-layer hybrid, which includes a Red Book layer that can be played on any existing CD player in addition to the high-density layer that has the capacity to deliver eight channels of DSD. 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.

According to some, SACD is a hybrid CD/DVD format, since Scarlet Book specifications are identical to those for DVD disks for the file system, sector size, error correction, and modultation . SACD is in competition with a similar product, DVD-Audio , as the format that will replace standard audio CD.

This was last updated in September 2005

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • risk management

    Risk management is the process of identifying, assessing and controlling threats to an organization's capital and earnings.

  • compliance as a service (CaaS)

    Compliance as a Service (CaaS) is a cloud service service level agreement (SLA) that specified how a managed service provider (...

  • data protection impact assessment (DPIA)

    A data protection impact assessment (DPIA) is a process designed to help organizations determine how data processing systems, ...

SearchSecurity

  • identity provider

    An identity provider is a system component that is able to provide an end user or internet-connected device with a single set of ...

  • firewall

    A firewall is software or firmware that enforces a set of rules about what data packets will be allowed to enter or leave a ...

  • encryption

    Encryption is the method by which information is converted into secret code that hides the information's true meaning. The ...

SearchHealthIT

SearchDisasterRecovery

  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • disaster recovery team

    A disaster recovery team is a group of individuals focused on planning, implementing, maintaining, auditing and testing an ...

  • cloud insurance

    Cloud insurance is any type of financial or data protection obtained by a cloud service provider. 

SearchStorage

Close