Bluetooth Is Working On Wireless Audio Tech I Once Thought Was Impossible - What To Know

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ZDNET's cardinal takeaways

• The Bluetooth SIG is preparing for lossless and spatial audio formats.
• Standardization reduces proprietary requirements and licensing fees.
• These formats are improbable to look until nan adjacent decade.

Wireless headphones and speakers are a staple successful our tech arsenals, but there's 1 awesome drawback to Bluetooth audio transmission: lossy playback. For those who bask higher-resolution audio, Bluetooth isn't an option. However, nan Bluetooth Special Interest Group (SIG) is moving connected several wireless audio innovations, including standardized wireless lossless audio, spatial audio, and situation sound.

How could Bluetooth standardize lossless audio?

Bluetooth's default codec is SBC, which provides nan lowest audio value and prioritizes relationship stability. Other codecs, specified arsenic LDAC, AAC, and AptX, supply much information transmission and tin present near-lossless quality. The rumor is that these codecs aren't standard; AAC tin beryllium inconsistent connected Android, and LDAC and AptX codecs require manufacturers to salary licensing fees.

Thus, nan Bluetooth SIG's extremity is to heighten its LE Audio Bluetooth power to support hi-res and lossless audio via high-data throughput, thereby standardizing nan exertion crossed brands and manufacturers. 

Also: What is Bluetooth 6.0? How nan latest modular fixes audio problems we'd learned to unrecorded with

A integer audio record is considered lossless erstwhile fidelity is preserved, and nan opus retains each original audio detailing. Lossless audio files are larger, require higher information transportation rates, and usage much processing power. Therefore, lossless audio files aren't compatible pinch existent Bluetooth bandwidth standards.

Your wireless audio files are lossy, meaning immoderate audio value is mislaid successful transmission. Audio files streamed via Bluetooth must beryllium compressed to beryllium compatible, which decreases audio quality. However, immoderate Bluetooth codecs supply amended audio value than others, owed to improved sample and bit-rate thresholds.

How could Bluetooth standardize spatial audio?

LE Audio besides includes a model for multi-channel audio playback, which is nan instauration of spatial audio. The LC3 codec is astatine nan halfway of LE Audio and supports higher bandwidth, little latency, and independent audio streams, enabling information transmission for 3D audio, precise timing, and spatial imaging. 

Also: I said pinch Bluetooth reps astir nan early of connected audio, and it's cooler than I expected

Bluetooth besides supports an open-source LE Audio protocol for caput tracking, arsenic seen successful Google's Dynamic Spatial Audio. There's still activity to do to amended Bluetooth's bandwidth to guarantee that a standardized type of spatial audio tin compete pinch proprietary versions preferred by manufacturers and consumers, specified arsenic Dolby Atmos and DTS:X. 

When tin you expect these features?

The Bluetooth SIG follows a biannual merchandise schedule, meaning halfway specification upgrades are released doubly a year. Although nan Bluetooth SIG is quickly releasing halfway updates, shaper adjustment is usually slower. For example, Bluetooth Auracast, a standardized audio-sharing technology, was introduced to nan marketplace successful 2022. However, wide take gained traction successful mid-2025, pinch much products expected passim 2026.

Also: Microsoft's caller Windows 11 Bluetooth update comes pinch useful benefits (and a awesome caveat)

Although a Bluetooth-enabled instrumentality whitethorn beryllium equipped pinch nan latest Bluetooth version, that capacity doesn't mean it supports nan latest wireless innovations. Device manufacturers tin determine to omit basal hardware and software, leaving your instrumentality without desired features.

Still, standardized lossless and spatial audio are ongoing projects, pinch nary specifications published by nan Bluetooth SIG yet. So, I wouldn't expect these features to deed nan marketplace until nan move of nan adjacent decade.