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Uncompromising wireless listening technology from Sony. LDAC provides music experiences with supreme sound quality.

LDAC Features

LDAC is an audio coding technology developed by Sony that enables the transmission of High-Resolution (Hi-Res) Audio content, even over a Bluetooth® connection.

Unlike other Bluetooth compatible coding technologies such as SBC, it operates without any down-conversion of the Hi-Res Audio content*1, and allows approximately three times more data*2 than those other technologies to be transmitted over a Bluetooth wireless network with unprecedented sound quality, by means of efficient coding and optimized packetization.

*1: excluding DSD format contents
*2: in comparison with SBC (Subband Coding) when the bitrate of 990kbps (96/48kHz) or 909kbps (88.2/44.1kHz) is selected

graph:Comparison of transmission volume

Loss in sound quality during transmission regarding current Bluetooth(SBC).

  1. Down convert hi-res (96kHz/24bit) to CD (44.1kHz/16bit)
  2. Then, SBC codec transmits less volume of the converted data

On the other hand, LDAC, the technology from Sony, achieves the sound quality maintenance at the time of transmission by the following points.

  1. 3x the data transmitted compared to existing wireless technology
  2. Possible to maintain maximum bit depth and frequency of 96kHz/24bit
  3. High compression efficiency and reproduction

Comparison between

High quality transmission of conventional music content

You may select 3 kinds of transmission rates; Quality priority mode, Normal mode and Connection priority mode.

1. 990kbps: (Quality priority mode)

3x the data transmitted compared to existing wireless technology

*Bluetooth A2DP - SBC (328kbps, 44.1kHz)

2. 660kbps: (Normal mode)

Initial setting mode of Walkman

*The settings can be changed to each mode on Walkman.

3. 330kbps: (Connection priority mode)

Almost same as existing codec

*It achieves the higher sound quality than conventional codec, even in a bad connection environment.

*The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by Sony Corporation is under license.

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