When it comes to wireless audio, Bluetooth codecs make a big difference in sound quality, latency, and compatibility. Among the top contenders for high-resolution wireless audio are LHDC (Low Latency High Definition Codec) vs. LDAC (developed by Sony). Both are designed to deliver near-lossless audio over Bluetooth, but how do they compare? This article breaks down the technical details, performance differences, and practical use cases to help you decide which codec is better for your listening needs.
LHDC vs. LDAC – Which Bluetooth audio codec wins? Eureka Technical Q&A compares their bitrate, latency, and audio quality, helping you choose the best wireless codec for high-resolution sound and smooth streaming.
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What Is LHDC?
LHDC stands for Low Latency High Definition Audio Codec, developed by Savitech. It supports high-resolution audio streaming over Bluetooth with minimal latency, making it ideal for users who value audio fidelity and real-time audio sync. LHDC, which stands for Low-Latency High-Definition Audio Codec, is an audio codec technology developed by Savitech. It allows for high-resolution audio streaming over Bluetooth, providing improved audio quality and lower latency compared to other Bluetooth audio codecs such as SBC (Sub-band Coding) . LHDC supports transmission rates of up to 900 kbps and can handle sample rates of up to 96 kHz and bit depths of 24 bits, which is significantly higher than the capabilities of SBC . This makes it suitable for high-fidelity audio applications, such as listening to lossless audio files or gaming, where both audio quality and responsiveness are crucial.
Key Specs:
- Maximum bitrate: 900 kbps
- Sample rate: 96 kHz
- Bit depth: 24-bit
- Latency: As low as 80 ms (with LLAC variant)
- Certified by Hi-Res Audio Wireless (Japan Audio Society)
What Is LDAC?
LDAC is a Bluetooth audio codec developed by Sony, widely supported in Android devices and integrated into the Android Open Source Project (AOSP). It’s known for balancing audio quality and stability.
Key Specs:
- Maximum bitrate: 990 kbps
- Sample rate: 96 kHz
- Bit depth: 24-bit
- Latency: ~160–200 ms
- Also certified by Hi-Res Audio Wireless
LHDC vs. LDAC: Feature-by-Feature Comparison
Audio Quality
Both LHDC and LDAC support high-definition audio, with the ability to transmit up to 24-bit/96 kHz audio, which is considered Hi-Res Audio quality. This allows for a richer and more detailed audio experience compared to lower bitrate codecs like SBC or AAC.
Latency
LHDC is often highlighted for its low-latency performance, which can be advantageous for applications requiring real-time audio, such as gaming or live audio streaming. LDAC, while also offering low latency, may not perform as well as LHDC in this regard.
Codecs and Compatibility
LHDC was developed by Huawei and is part of the Hi-Res Wireless Audio (HWA) standard, which aims to provide high-quality audio over Bluetooth connections. LDAC, on the other hand, was developed by Sony and has been widely adopted in the Android ecosystem since Android 8.0. The choice between the two may also depend on the devices and headphones you use, as codec support can vary between manufacturers.
Transmission Rates
Both codecs offer multiple transmission rates, with LDAC providing options of 330 kbps, 660 kbps, and 990 kbps, while LHDC typically supports rates up to 900 kbps. Higher transmission rates generally result in better audio quality but may also increase the risk of interference, especially in crowded 2.4 GHz frequency bands.
Market Adoption and Availability
As of now, LDAC has a broader range of support, particularly in the Android ecosystem, whereas LHDC is more commonly found in Huawei and other Chinese brands’ devices. This could influence your decision based on the devices you already own or plan to purchase.
| Feature | LHDC | LDAC |
|---|---|---|
| Max Bitrate | 900 kbps | 990 kbps |
| Sample Rate | Up to 96 kHz | Up to 96 kHz |
| Bit Depth | 24-bit | 24-bit |
| Latency | ~80 ms (LLAC) | ~160–200 ms |
| Hi-Res Certified | Yes | Yes |
| Device Support | Limited (Xiaomi, Huawei, Oppo) | Broad (Android 8+, Sony, LG) |
| Streaming Stability | Good with compatible devices | Very stable across Android devices |
| Licensing | Licensed by Savitech | Freely available on Android AOSP |
Performance in Real Use
Sound Quality
Both LHDC and LDAC support high-resolution audio with bitrates and sampling rates that surpass standard SBC or AAC. In blind tests, audio quality can be similar, but LDAC offers slightly higher bitrates, while LHDC may sound smoother at lower latencies.
Latency
LHDC offers lower latency, especially with its LLAC (Low Latency Adaptive Codec) version. This makes it more suitable for gaming and video playback, where audio delay is noticeable.
Compatibility
LDAC has a clear edge. It’s available on most Android phones (8.0 and above) and supported by many headphones. LHDC is limited to select brands like Huawei, Xiaomi, and Oppo, which restricts its mass adoption.
Use Cases
| Use Case | Recommended Codec |
|---|---|
| High-res music streaming | Both are suitable |
| Gaming and video sync | LHDC (lower latency) |
| General Android usage | LDAC (broader support) |
| Audiophile headphones | Depends on support |
| iOS Devices | Neither (Apple uses AAC) |
FAQs
Only if your device and headphones support both codecs. You can usually change the setting in developer options or audio settings.
Yes. LLAC (a variant of LHDC) has lower latency, which is better for games and real-time video.
Limited device support and manufacturer adoption have slowed its spread, while LDAC benefits from native Android integration.
Not always. LDAC adjusts based on signal strength and can drop to 660 or 330 kbps for stability.
Yes. To benefit from either codec, your Bluetooth headphones must explicitly support LHDC or LDAC.
Conclusion
LDAC and LHDC are both powerful high-resolution Bluetooth audio codecs, but they cater to slightly different needs. LDAC wins in compatibility and availability, making it ideal for everyday users and audiophiles alike. LHDC, on the other hand, excels in low latency performance, making it the better choice for gaming and video sync—provided your hardware supports it.
If you’re using a mainstream Android phone with a wide range of headphones, LDAC is likely your best bet. But if you’re an enthusiast with compatible gear from Xiaomi, Huawei, or Oppo, LHDC can deliver impressive, low-latency high-res sound.
To get detailed scientific explanations of LHDC vs. LDAC, try Patsnap Eureka.
