Skip to main content

Qualcomm aptX Lossless: Everything you need to know


Qualcomm launched aptX Lossless, a new feature of aptX Adaptive that offers CD-quality lossless audio via Bluetooth. AptX Lossless claims to produce theoretically bit-for-bit CD-quality audio at 16bit/44.1kHz, with bit rate scalability ranging from 1Mb/s to 140Kbit/s. When audio is encoded and decoded with aptX Lossless, Qualcomm claims no data is lost. When aptX Adaptive recognizes that the source file is lossless, the lossless audio option is automatically enabled.

aptX Adaptive works in collaboration with Qualcomm's "Qualcomm Bluetooth High Speed Link" technology to enable data throughput over 1Mbits/s and CD-quality lossless music. It easily scaled down to 140kbits/s in congested areas to avoid audio dropouts and glitches.

It's important to note that aptX Lossless isn't a brand-new Bluetooth codec. It's actually a component of the aptX Adaptive codec. To begin with, aptX Adaptive is a highly scalable Bluetooth codec that supports variable bitrates, minimal system latency, and high data throughput.

The new aptX Lossless will be part of Qualcomm's Snapdragon Sound technology and will be part of the aptX Adaptive range of technologies.

That means it can be used to broadcast 1Mbps via Bluetooth when the radio (RF) circumstances are ideal. If the connection becomes unstable for whatever reason, aptX Adaptive can reduce the stream quality to as low as 140kbps. That way, you'll always be able to hear your music (or podcast, audiobook, etc.) in the greatest possible quality, even if it's not lossless at the time.

Features of aptX Lossless:

Bit-rate:  140 kbit/s – >1Mb/s

Supports 44.1kHz, 16-bit CD lossless audio quality

Designed to scale up to CD lossless audio based on Bluetooth link quality

Users can select between CD lossless audio 44.1kHz and 24-bit 96kHz lossy

Auto-detects to enable CD lossless audio when the source is a lossless audio

Difference between aptX Lossless and aptX HD

You might be under the impression that Qualcomm already has a high-resolution audio codec in the form of aptX HD. It can, in fact, transmit audio at a higher resolution than aptX Lossless, up to 24-bit 48kHz. However, the audio is compressed and not sent losslessly.

aptX HD has a maximum bitrate of 576kbps, but aptX Lossless has a maximum bitrate of 1Mbps.

Another advantage of aptX Lossless is that it can achieve 24-bit 96kHz if you are willing to accept lossy audio, making it versatile. Depending on your preferences, you will be able to choose between the modes.


No headphones or earbuds currently support the new codec. True wireless in-ears and other headphones will need to support a new version of Qualcomm's Snapdragon Sound technology to be compatible. They will be available in early 2022.


Popular posts from this blog

Facebook adds End-to-End Encryption for Voice and Video calls on Messenger

Facebook is bringing plenty of new features to Messenger users who enable end-to-end encryption (E2EE). With E2EE enabled, you can now make voice or video calls to Messenger contacts, just like you can with WhatsApp. Anyone outside of the sender and recipient, including Facebook, will not be able to listen to your voice and video calls if you use end-to-end encryption (E2EE) option, so it’s like adding an extra layer of security to your voice and video chats on Messenger. You can still report messages to Facebook if required, according to the company. Pic Credit: Facebook End-to-end encryption for text messages has been enabled in Facebook Messenger in 2016, when the company launched a "secret conversation" option to the app. That mode now includes the ability to make phone calls. Messenger now receives more than 150 million video calls every day, according to Facebook, which claims the service is being added as interest in voice and video chats surges. A minor update is bein

Google officially launched new Nest Cameras and Doorbells with smart features

Pic Credit: Google Google has revealed a new line of home security cameras and a video doorbell under its Nest brand, after they were unintentionally listed on the Google Store earlier this week. The Nest IQ cameras and Nest Hello doorbell have been replaced by the new models , which comprise an indoor-only camera, an indoor/outdoor camera, a floodlight, and a video doorbell. The new Google Nest Cam and Google Nest Doorbell are the first battery-powered Nest home security devices from the company. The new gadgets feature a precise design language and more affordable price – each model costs less than the camera it replaces while offering additional features. Anyone who has seen other Nest devices introduced in the last couple of years, such as the updated Nest Thermostat, Nest WiFi, or the Nest Audio smart speaker, will recognize the design of the new cameras. The new cameras continue the company's trend of softer edges and subdued colour palettes, with colour options that are supp

Amazon announced New Smart Home Devices during Amazon Fall 2021 Hardware Event

Pic Credit: Amazon Amazon made a lot of announcements during its hardware event in September 2021. The e-commerce company presented a variety of new devices, including an autonomous robot, a smart thermostat, and a service that lets you look after elderly relatives while you're away. We got a brand-new Echo display, additional AI features, and even a robot that appears to be a lot of fun to have around the house. Amazon is definitely aiming to take over the home with a slew of devices designed to keep you secure and connected. Here's a short overview of all of Amazon's new products and services: 1. Smart Thermostat The Amazon Smart Thermostat is an Energy Star-certified gadget with a straightforward design that is "reliable with most existing 24V HVAC systems." When you're at home or away, Alexa will automatically adjust the temperature in your home to suit your preferences. Preorders for the Amazon Smart Thermostat are currently available for $59 or p