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What is aptX HD audio technology and which mobiles incorporate it

Your mobile may have aptX HD audio technology, do you know what it is? We explain how it helps to improve the sound of your phone and which models have it.

When choosing a new phone, audiophiles are concerned about selecting a terminal with a good sound system that reproduces the audio with the highest possible quality and fidelity. In this choice there is a technology that plays a great role, aptX HD, as it intervenes to significantly improve the sound of the equipment when it is wireless.

Introduced by Qualcomm in 2018, aptX HD audio technology is already present in dozens of terminals on the market. In this guide, we explain thoroughly what is aptx HD technology and what is it for, what differences are there between this and aptX, and what mobiles can you currently buy that have aptx HD. Let’s go there!

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What is aptX and what is it for?

The aptX HD audio technology enhances the sound of your mobile.

aptX is a compression algorithm developed by Qualcomm to stream audio with the best possible quality in the limited bandwidth of a Bluetooth connection, i.e. for the best audio quality when it is transmitted wirelessly.

What aptX actually does is compress and then decompress the audio when traveling between a source device – mobile phone – and a receiving device – wireless headphones – so that audio can be transmitted through Bluetooth without being damaged, as explained on the aptX website.

In this way, aptX audio technology allows you to listen to music with your headphones or wireless speakers with the highest possible quality. This statement helps us to confirm that no, it is not true that wireless headphones reduce sound quality.

Created in the early 90’s at Queen’s University in Belfast, this audio codec has received new variants throughout its history. So now we can talk about aptX, aptX HD, aptX Adaptive and aptX Low Latency. Let’s get to know the differences between the two most important types of aptX.

What are the differences between aptX HD and aptX?

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The aptX HD audio technology allows you to listen to music in the best quality.

As we said, aptx technology was born in the early 90s. Specifically, this compression algorithm is capable of transmitting audio with 16 bit / 48 kHz quality, with a bit rate of 384 kbps.

Time passed and Qualcomm researchers continued working on this codec to improve it. 2016 arrived and we learned about the existence of aptX HD technology, capable of transmitting audio with 24-bit / 48 kHz quality, and a bit rate of 576 Kbits. This technology also manages to improve the signal-to-noise ratio, which translates into a lower background noise when streaming audio.

Furthermore, aptX HD technology has been developed with a Lower Total Harmonic Distortion (THD) to enjoy music with hardly any interference. Ultimately, the aptX HD compression algorithm enables better quality wireless audio transmission, with less background noise and less interference than aptX technology.

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What mobiles have aptX HD?

There are more than a hundred mobiles that have aptX HD technology to offer the user the best possible quality when listening to music with their wireless audio devices. We quote some of the most outstanding models in the following list:

  • ASUS Rog Phone 3
  • OnePlus 8 / One Plus 8 Pro
  • OnePlus Nord
  • Sony Xperia 1 II
  • Sony Xperia 5 II
  • Xiaomi Mi Note 10 / Xiaomi Mi Note 10 Pro
  • Huawei P30 / Huawei P30 Pro

We see that brands such as Xiaomi, Huawei or OnePlus bet on aptX HD technology for some of their most recent mobiles. To know the rest of smartphones with this compression algorithm created by Qualcomm, enters on the aptX website.

How to enable aptX audio on compatible mobiles

Before saying goodbye, we encourage you to activate this audio codec on your phone if it is compatible. To do this, follow these steps:

  1. Enter the mobile settings
  2. Activate Android developer options.

  3. In the developer menu look for the section “Bluetooth Audio Codec” and select the option “Qualcomm aptX HD Audio”.

Ready, you can now enjoy the best sound quality when you listen to music wirelessly.

Related topics: Mobile, Technology