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DVD Introduction

Audio Introduction

TV Introduction

DVD Sound

CD Introduction

Audio media

DVD Audio



Super Audio CD SACD



What is a Super Audio CD?

Super Audio CD (SACD) is a high-resolution optical audio disc format introduced in 1999 by Sony and Philips as a superior-sounding successor to the standard Compact Disc (CD). It utilizes Direct Stream Digital (DSD) encoding, providing much higher sampling rates and wider dynamic range than traditional CDs.

Super Audio CD (SACD) offers superior audio fidelity, multichannel surround sound, and higher resolution than standard Compact Discs (CDs) by utilizing Direct Stream Digital (DSD) encoding. While CDs use 16-bit PCM encoding, SACDs offer a 1-bit, 2822.4 kHz sampling rate, providing increased frequency response and dynamic range.

Advantages of SACD over CD

Multichannel Surround Sound
SACD supports up to 5.1 channels, allowing for immersive audio, whereas CDs are limited to 2-channel stereo.

Superior Resolution (DSD)
Instead of standard PCM (Pulse Code Modulation) audio, SACD uses DSD encoding. This technology provides a much higher digital sampling rate, leading to greater sonic detail.

Greater Dynamic Range & Frequency
SACD offers a wider frequency range and greater dynamic range, capable of capturing more subtle nuances in the music.

Hybrid Capability
Many SACDs are "hybrid," featuring a high-resolution SACD layer and a standard CD layer that plays on any traditional CD player.

Blu-ray players that play SACDs

Blu-ray players offer one of the most popular and budget-friendly ways to listen to SACDs at home. Not all Blu-ray players are compatible with SACD playback. If you want one that's versatile enough to handle high-res video AND audio, make sure you choose an SACD-capable Blu-ray player.

The Sony UBP-X700U is an example player.

Sony - UBPX700U 4K Ultra HD Blu-ray Player

Sony UBP-X800M2 4k Universal disc player

SACD Disc Support
Plays SACD, SACD/CD, and DSD discs.
DSD File Playback: Plays 2.8 MHz DSD files via USB.

Audio Output Options
The player can output DSD directly via HDMI or convert DSD to PCM, allowing compatibility with most AVRs.

Audio Video Receivers that can decode SACD DSD natively via HDMI include models from Denon, Marantz, Yamaha, and Sony. Key models often cited include the Sony STR-DH790, Sony AN1000, and various Denon X-series receivers, which can handle the DSD bitstream sent over HDMI from a compatible player. If not using HDMI, you will need a player with 5.1 analog outs and an older receiver with 5.1 analog inputs.

SACD Playback: To hear the high-resolution SACD sound, you need a dedicated SACD player.

Digital Output: Due to high bandwidth needs, digital output of SACD audio is usually handled via HDMI or specialized analog connections.

Primary Connection Options

Analog RCA (Stereo/Multichannel)
Best for using the SACD player internal Digital to Analog Converter. Use dedicated 5.1/7.1 analog outputs for multichannel discs.

HDMI
The preferred digital method for modern systems. It allows transmission of DSD data to a compatible Audio Video Receiver or processor, supporting both high-res stereo and multichannel.

Digital Limitations
Coaxial/Optical digital audio (S/PDIF) outputs
Typically cannot transmit the high-resolution DSD layer of an SACD due to copy protection regulations, downsampling the audio to 16-bit/44.1kHz (CD quality) or providing no audio at all.

Copy Protection
Sony mandates that digital outputs for SACD must be encrypted, which is why standard coaxial or optical cables generally do not work for full DSD output.

SACD characteristics
Characteristic CD layer (optional) SACD layer
Disc capacity 700MB 4.7GB
Audio encoding 16-bit pulse-code modulation 1-bit Direct Stream Digital
Sampling frequency 44.1kHz 2,822.4kHz
Audio channels 2 stereo Up to 6 discrete surround
Playback time if stereo 80 minutes 110 minutes without DST compression


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