Supported Codecs - Sony WH-1000XM4/S Help Manual

Wireless noise canceling stereo headset

Table of Contents

Help Guide

Wireless Noise Canceling Stereo Headset

WH-1000XM4

Supported codecs

A codec is an audio coding algorithm used when transmitting sound via Bluetooth connection.

The headset supports the following 3 codecs for music playback via an A2DP connection: SBC, AAC, and LDAC.

SBC

This is an abbreviation for Subband Codec.

SBC is the standard audio coding technology used in Bluetooth devices.

All Bluetooth devices support SBC.

AAC

This is an abbreviation for Advanced Audio Coding.

AAC is mainly used in Apple products such as iPhone that can provide a higher sound quality than that of SBC.

LDAC

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

High-Resolution Audio content (*), and allows approximately 3 times more data (**) than those other technologies to

be transmitted over a Bluetooth wireless network with unprecedented sound quality, employing efficient coding and

optimized packetization.

excluding DSD format contents.

in comparison with SBC when the bitrate of 990 kbps (96/48 kHz) or 909 kbps (88.2/44.1 kHz) is selected.

When music in one of the above codecs is transmitted from a connected device, the headset switches to that codec

automatically and plays back the music in the same codec.

If the connected device supports a codec of higher sound quality than SBC, you may need to set the device beforehand

to enjoy music with the desired codec from the supported codecs.

Refer to the operating instructions supplied with the device regarding setting the codec.

Wh-1000xm4