Wireless audio has become the new normal as more smartphones ship without headphone jacks. However, regarding sound quality, the codec can make a big difference. This is where we meet the LDAC and AAC.
Regarding Codecs, your experience depends on which codec your device supports, whether you’re streaming music, gaming, or watching movies. This article briefly breaks down the key differences, use cases, and recommendations to help you choose whether LDAC is better or AAC is better.
What Is a Bluetooth Audio Codec?
In simple terms, Audio codecs are like translators between your phone and your headphones. A Bluetooth audio codec compresses your music file, transmits it wirelessly, and then decompresses it on your earbuds or headphones.
It affects:
- Sound quality
- Latency (audio delay)
- Battery life
- Device compatibility
In short, the better the codec, the better your music sounds, with fewer delays and less battery usage.
Think of it like sending a high-quality photo through a messaging app. Some apps compress the image a lot, making it look blurry, while others keep more details. Audio codecs work the same way.
Why Are Codecs Important?
- Compression Efficiency: Some codecs compress audio more efficiently, keeping more details while reducing file size.
- Latency: Lower latency codecs ensure that sound stays in sync with videos and games.
- Compatibility: Different devices support different codecs, affecting your audio experience.
- Battery Life: Some codecs use more power than others, affecting how long your devices last on a charge.
Overview: LDAC vs AAC Codec Comparison
| Feature | LDAC | AAC |
|---|---|---|
| Created By | Sony | Apple |
| Max Bitrate | Up to 990 kbps | Up to 320 kbps |
| Bit Depth | 24-bit | 16-bit to 24-bit |
| Sample Rate | Up to 96 kHz | Up to 44.1 kHz |
| Adaptive Bitrate | Yes (330 / 660 / 990 kbps) | No |
| Hi-Res Audio Certified | Yes | No |
| Device Compatibility | Android 8+, Sony headphones | iOS, macOS, most headphones |
| Battery Usage | Higher | Efficient |
| Latency (for gaming) | Moderate to high | Low (especially on Apple devices) |
LDAC: The Audiophile’s Choice
LDAC is Sony’s high-resolution Bluetooth codec. It’s one of the few that can stream nearly lossless audio wirelessly.
- Bitrate: Up to 990 kbps
- Sampling Rate: Up to 96 kHz
- Bit Depth: 24-bit
What makes LDAC special:
- Depending on Bluetooth connection quality, it can dynamically shift between 330, 660, and 990 kbps.
- It offers more detail and depth, especially with FLAC or Hi-Res audio files.
- LDAC is supported on Android 8.0+ devices and many premium headphones.
Downsides:
- Not available on iPhones
AAC: The Everyday Streaming Champ
AAC (Advanced Audio Codec) is Apple’s preferred codec and the default for iPhones, iPads, and MacBooks.
- Bitrate: Typically around 256–320 kbps
- Sampling Rate: 44.1 kHz
- Bit Depth: Up to 24-bit on paper
What AAC does well:
- Balanced audio quality and battery life
- Excellent performance on Apple devices
- Widely supported by almost all Bluetooth earbuds and headphones
Limitations:
Not ideal for high-resolution audio
Not optimized on some Android phones (may sound flat)
LDAC vs AAC: Real-World Sound Quality
If you’re using high-end gear and FLAC or Hi-Res audio, you’ll likely hear better detail with LDAC — deeper bass, clearer vocals, and more spacious sound.
But most people won’t notice a massive difference for everyday listening (Spotify, Apple Music, YouTube). AAC already sounds great for streaming on most devices.
Sound Quality Comparison – LDAC vs AAC
Bitrate Differences
- LDAC can transfer audio up to 990 kbps, which retains more sound details.
- AAC usually streams at 256 kbps, which is more compressed but efficient.
If you’re listening to high-resolution FLAC files, LDAC will sound noticeably better than AAC. However, if you’re streaming from services like Spotify or YouTube Music, AAC is more than enough.
Compression & Audio Loss
AAC is more compressed, so some audio details are removed to keep the file size smaller. LDAC, on the other hand, can preserve more information, especially at higher bitrates. However, if LDAC is set to its lower 330 kbps mode, the difference between LDAC and AAC becomes minimal.
Latency & Performance
Latency means the delay between when a sound is played on your phone and when you hear it in your headphones. AAC is more optimized for Apple devices and has low latency, making it great for watching videos and gaming. LDAC, however, can sometimes have more delay, especially if your connection isn’t strong.
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Device Compatibility
- LDAC is widely available on Android devices and some premium headphones (like Sony WH-1000XM5).
- AAC is the default codec for Apple devices and is supported by most Bluetooth headphones.
If you have an iPhone, AAC is your best option because Apple devices don’t support LDAC. But if you’re on Android and have high-quality headphones, LDAC can provide better sound.
Best Use Cases – Which One Should You Choose?
| Use Case | Best Codec |
|---|---|
| Listening to high-resolution audio on Android | LDAC |
| Using an iPhone or iPad | AAC |
| Streaming music (Spotify, YouTube Music, Apple Music) | AAC |
| Watching videos or gaming (low latency needed) | AAC |
| Using high-end wireless headphones with Android | LDAC |
Final Verdict – Which Codec Is Better?
- If you care about the best possible sound quality and use an Android phone, go with LDAC. It provides more detail and depth in music, especially for high-resolution audio.
- If you’re using an iPhone, stick with AAC. It’s optimized for Apple devices and works smoothly without battery drain.
- AAC is an excellent choice for everyday use and streaming. Most people won’t hear a massive difference without using high-end audio equipment.
Use Case Recommendations
| Use Case | Best Codec |
|---|---|
| Hi-Res music on Android with Sony headphones | LDAC |
| Streaming music on iPhone or Mac | AAC |
| Watching videos on an iPhone or an iPad | AAC |
| Gaming on mobile with low latency | AAC |
| Budget earbuds that support multiple codecs | AAC |
| Premium Android headphones (e.g., WH-1000XM5) | LDAC |
Other Codecs (Quick Context)
While LDAC and AAC are most relevant, here’s how they compare to others:
| Codec | Max Bitrate | Bit Depth | Notes |
|---|---|---|---|
| SBC | 328 kbps | 16-bit | Default codec, lowest quality |
| aptX | 352 kbps | 16-bit | Qualcomm’s standard codec |
| aptX HD | 576 kbps | 24-bit | Higher quality, Android only |
| LC3 | 345 kbps | 32-bit | Newer, efficient, part of Bluetooth LE |
| LHDC | 900 kbps | 24-bit | Competes with LDAC, less widely supported |
Latency: AAC Wins for Video & Gaming
AAC has lower latency, especially on Apple hardware, which means less delay between what you see and hear.
LDAC may introduce lag, especially at 990 kbps or with weak connections.
If you watch a lot of YouTube or play mobile games, AAC is the safer pick.
Battery Life: AAC Is More Efficient
Because AAC uses a lower bitrate and simpler encoding, it uses less battery than LDAC.
If you’re on the move and want longer listening sessions, AAC gives you an edge.
Compatibility: Know Your Device
- iPhones and iPads: Support AAC only. LDAC is not supported at all.
- Android (8.0+): Support LDAC if enabled by the manufacturer.
- Windows PCs: Typically support SBC and AAC. LDAC only with special drivers.
- MacBooks: Use AAC, but there is no LDAC support.
Check developer settings (Android) or system settings (iOS/macOS) to confirm what codecs your device uses.
FAQs
1. Does LDAC really sound better than AAC?
Yes, at higher bitrates (990 kbps), LDAC sounds better than AAC because it retains more audio details. However, the difference is not as noticeable if LDAC runs at lower bit rates (like 330 kbps).
2. Can iPhone users benefit from LDAC?
No, iPhones do not support LDAC. If you use an iPhone, AAC is the best choice.
3. Does LDAC drain more battery?
Yes, LDAC requires more processing power and bandwidth, which can reduce battery life compared to AAC.
4. What are the best headphones for LDAC and AAC?
- LDAC: Sony WH-1000XM5, Sony WF-1000XM5, FiiO BTR5.
- AAC: AirPods Pro, Beats Studio Buds, Bose QuietComfort Ultra.
Final Thoughts
Both LDAC and AAC have strengths. LDAC is worth it for audiophiles using Android devices. AAC is the best choice for Apple ecosystem users. For casual music streaming, either codec will serve you well.
By understanding these differences, you can make the best choice for your listening needs!
I’m a tech-savvy writer and passionate software engineer who loves exploring the intersection of technology and creativity. Whether it’s building efficient systems or breaking down complex tech topics into simple words, I enjoy making technology accessible and useful for everyone.