How LC3 and LE Audio Are Overtaking LDAC in Bluetooth Sound

LC3, the foundation of Bluetooth LE Audio, delivers better efficiency and versatility than LDAC while supporting multi-stream audio and Auracast broadcasts. Newer phones and headphones now make these features practical. The shift changes what matters in wireless sound.
How LC3 and LE Audio Are Overtaking LDAC in Bluetooth Sound
Written by Juan Vasquez

LDAC once stood tall as the high-resolution choice for Android users chasing detail in their wireless headphones. Sony’s codec pushed Bluetooth to 990kbps. It delivered 24-bit audio at up to 96kHz. Many audiophiles still swear by it. But a newer approach has arrived that shifts the entire conversation.

LC3, the Low Complexity Communications Codec, forms the foundation of Bluetooth LE Audio. Developed by Fraunhofer IIS and Ericsson, it replaces the ancient SBC standard. The Bluetooth Special Interest Group makes strong claims. Bluetooth.com states that extensive listening tests show LC3 provides improvements in audio quality over SBC even at a 50% lower bit rate. The advantages extend far beyond simple fidelity.

Power efficiency stands out first. LE Audio runs on the Bluetooth Low Energy radio rather than classic BR/EDR. Devices sip less battery. Headphones last longer. Form factors shrink. Makers gain flexibility to balance sound, range and endurance in ways LDAC never allowed. And the date on that MakeUseOf report? June 18, 2026. The conversation has accelerated.

Christine Persaud wrote in MakeUseOf that LC3 combines the best qualities of LDAC-like audio performance with Bluetooth LE. Independent audio streams reach each earbud directly instead of splitting stereo into one primary channel and a mono copy. Synchronization problems vanish. Latency drops. True wireless stereo becomes more reliable. The difference feels immediate when you switch tracks or move between rooms.

But not everyone buys the hype. What Hi-Fi? pushed back years ago. In a July 2022 feature, the publication argued that Bluetooth LE and LC3 won’t improve sound quality in any meaningful way for demanding listeners. Jez Ford wrote, “Don’t believe the hype. Use your ears.” He pointed out that practical Bluetooth throughput hovers near 1Mbps. Lossless high-resolution audio remains impossible. LC3’s typical rates sit well below LDAC’s peak. The piece noted that LC3plus, an enhanced variant, targets 24-bit/192kHz but mainly for web streaming or DECT rather than direct headphone transmission.

Those reservations still matter. LDAC at 990kbps can sound closer to CD quality than SBC or AAC in controlled tests. Measurements from sites like Audio Science Review and Archimago’s blog have shown LDAC 909kbps outperforming aptX HD in frequency response and noise. Yet real-world conditions often force LDAC down to 660kbps or even 330kbps. At the lowest setting, it sometimes measures worse than plain SBC. The codec’s aggressive compression reveals limits quickly on crowded networks.

LC3 takes a different path. It achieves respectable quality at lower data rates. The Bluetooth SIG highlights multi-stream audio that lets two people share the same movie soundtrack through separate headphones at individual volumes. Auracast broadcast audio takes this further. One source can send audio to unlimited receivers. Think museum tours, gym classes, airport announcements or sports bar TVs. Anyone with compatible earbuds simply tunes in. The technology also opens doors for modern hearing aids that connect directly without bulky accessories.

Support has grown fast. Recent flagship phones from Samsung and Google include full LE Audio stacks. The Galaxy S26 Ultra and Pixel 10 Pro handle LC3 without issue. Sony’s WF-1000XM5 earbuds and Sennheiser’s Momentum series now expose the option. Apple’s latest iPhones support the underlying hardware yet restrict full LE Audio features to Made for iPhone hearing aids. On Windows 11, users must confirm both the Bluetooth radio and audio drivers enable LE Audio. Companion apps for many headphones let enthusiasts toggle the mode manually. The setting often hides in developer options or advanced Bluetooth menus.

Recent coverage shows the momentum. A November 2025 Collabora blog detailed Linux implementation progress for LE Audio and Auracast. An Avantree post from December 2025 explained why Auracast with LC3 sounds better than classic SBC broadcasts. Even budget products now advertise Auracast compatibility alongside LDAC and aptX Lossless. Qualcomm’s Snapdragon Sound platform has embraced the shift. One June 2026 X post highlighted the EarFun Air Pro 4+ touting aptX Lossless, LDAC, Snapdragon Sound and Auracast in the same package.

Latency tells another story. Gamers and video watchers notice the gap. Classic Bluetooth with LDAC often sits around 200 milliseconds. LC3 in LE Audio drops into the 20 to 40 millisecond range in many implementations. The improvement feels transformative for lip-sync and competitive play. Battery gains compound the benefit. Headphones that once needed daily charging now stretch further on the same capacity.

Critics correctly note that LC3 does not deliver true high-resolution wireless audio in the lossless sense. No Bluetooth codec does. aptX Lossless from Qualcomm comes closest for CD-quality 16-bit/44.1kHz, yet it demands ideal conditions and a narrow device ecosystem. LDAC and LHDC stretch toward 24-bit but discard data along the way. The debate ultimately returns to perception. Many listeners cannot distinguish LC3 from higher-bitrate LDAC in normal environments. The efficiency and new features outweigh marginal gains in lab measurements.

Device makers face choices. They can continue offering LDAC for marketing appeal while quietly adding LC3 for future-proofing. Or they can push users toward LE Audio defaults. Google has leaned into the latter with Pixel phones. Samsung follows suit. Sony maintains LDAC prominence in its own products yet ships LE Audio support. The fragmentation persists. Not every pair of earbuds exposes LC3. Some require firmware updates. Others limit broadcast features.

Still the direction looks clear. Bluetooth SIG calls LE Audio the future. LC3 sits at its center. Auracast promises shared audio experiences once unimaginable. Hearing-aid integration brings accessibility gains. Lower power consumption helps every user. These elements matter more to the industry than another incremental bitrate increase.

So check your devices. Enable LE Audio where available. Test the difference yourself. The codec that once made LDAC seem essential now makes it feel like yesterday’s news. Not because LC3 always sounds superior in blind tests. But because it does so many other things better while matching or exceeding expectations for everyday listening. The wireless audio world has moved on. The question is whether your gear has kept up.

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