LDAC (codec)

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
LDAC (codec)
LDAC logo.tiff
Developed bySony
Type of formatAudio codec

LDAC is an audio coding technology developed by Sony, which allows streaming audio over Bluetooth connections up to 990 kbit/s at 24 bit/96 kHz (also called high-resolution audio). It is used by various Sony products, including headphones, smartphones, portable media players, active speakers and home theaters. LDAC is a lossy codec[1][2], which employs a hybrid coding scheme based on the MDCT[3] to provide more efficient data compression. Its main competitor is Qualcomm's aptX-HD technology.[4]

Starting from Android 8.0 "Oreo", LDAC is part of the Android Open Source Project, enabling every OEM to integrate this standard into their own Android devices freely.[5][6]

As encoder library is open source the implementation for Linux is already present in bluez-alsa[7] and pulseaudio-modules-bt[8]. Now it works in Fedora 29.[9][10]


  1. ^ Darko, John H. (2017-03-29). "The inconvenient truth about Bluetooth audio". DAR__KO. Retrieved 2018-01-13.
  2. ^ "What is Sony LDAC, and how does it do it?". AVHub. 2015-08-24. Retrieved 2018-01-13.
  3. ^ "libldac android source code".
  4. ^ "Best Wireless Headphones of 2018". 2017-11-13. Retrieved 2018-03-09.
  5. ^ "What you need to know about Sony's LDAC". 22 August 2017.
  6. ^ "platform/external/libldac - Git at Google". android.googlesource.com. Retrieved 2018-11-30.
  7. ^ "LDAC support? · Issue #104 · Arkq/bluez-alsa". GitHub. Retrieved 2019-03-20.
  8. ^ H.H, Bao (2019-03-20), Adds Sony LDAC, aptX, aptX HD, AAC codecs (A2DP Audio) support to PulseAudio on Linux: EHfive/pulseaudio-modules-bt, retrieved 2019-03-20
  9. ^ "1671064 – Review Request: libldac - LDAC library from AOSP". bugzilla.redhat.com. Retrieved 2019-03-20.
  10. ^ eischmann (2019-02-11). "Better Bluetooth sound quality on Linux". Brno hat. Retrieved 2019-03-20.

External links[edit]