- Implementation of the ALAC codec to deliver lossless music from CD quality to high resolution.
- Development of Spatial Audio with Dolby Atmos to create three-dimensional and immersive sound experiences.
- Economic incentive strategy for artists who publish content in immersive format.
- Specific technical requirements for hardware and DACs to achieve maximum sound fidelity.
Surely you've experienced that feeling when listening to your favorite song, that something's missing, as if the sound is a bit "flattened." Well, Apple has decided to tackle this problem by giving its streaming platform a twist. The idea isn't just to add songs, but to change the way we consume music , aiming for extreme fidelity that brings us closer than ever to what the artist recorded in the studio.
It's not just about boasting about bits and hertz, but about a very well-thought-out business strategy . Apple wants its ecosystem to be a place where quality is never compromised, integrating technologies like lossless audio and surround sound so that, whether with high-end headphones or the iPhone's speakers and features , the experience is simply amazing.
Demystifying Lossless Audio
To understand this, you first need to know that most of the files we usually listen to use "lossy" compression, which basically removes data that the human ear can't perceive so the file size is smaller. However, lossless audio does something similar to a ZIP file: it compresses the data but, when played back, recovers the original waveform bit by bit , without losing any information.
Apple uses its own format called Apple Lossless Audio Codec (ALAC) . This system allows the platform's catalog to be divided into different quality levels. The first level is CD quality , which operates at 16 bits and 44,1 kHz. For true audiophiles, there's the option of High Resolution Lossless , which reaches up to 24 bits and 192 kHz, allowing for impressive sonic depth.
Now, here's the catch: to take full advantage of this, simply pressing play isn't enough. You need an external Digital-to-Analog Converter (DAC) if you want to exceed 48 kHz. Using the Lightning to 3,5 mm jack adapter will allow you to enjoy lossless audio, but it will be limited to 24-bit/48 kHz , as that's the limit of the built-in DAC.
Spatial Audio and the Magic of Dolby Atmos
If lossless audio is for purists, spatial audio is for those seeking an immersive experience . Unlike traditional stereo, which simply divides sound into left and right channels, Dolby Atmos -compatible systems treat sound as "objects." Imagine that the sound engineer can place an instrument anywhere on a 360-degree sphere surrounding the listener.
This creates a sense of volume and space where the music seems to float around you , even coming from above. Interestingly, while lossless audio requires cables to be truly effective, spatial audio works with almost any headphones , as it's a digital processing technique that simulates surround sound, though it particularly shines with AirPods and Beats headphones that have H1 or W1 chips.
It's important not to confuse Dolby Atmos spatial audio with the dynamic head tracking of AirPods Pro or Max. The former is a predefined mix by the artist, while the latter adjusts the position of the sound based on your head movement and the device's location, making the audio source seem stationary in space.
Apple's Strategy: Incentives and Hardware
Apple didn't release these features out of pure generosity. There's a masterstroke behind it: incentivizing content creation . The company has implemented a system where artists who upload their tracks in Atmos receive slightly higher payments (a factor of 1,1 compared to 1 for standard tracks). This encourages record labels to remaster their catalogs in Atmos.
Furthermore, this creates a healthy reliance on their hardware. While spatial audio is open, the optimized experience is achieved with their devices. A prime example is the Apple Vision Pro, which uses a proprietary wireless protocol to deliver lossless audio with ultra-low latency —something standard Bluetooth simply can't do due to its limited bandwidth.
Regarding Bluetooth, let's be honest: wireless connections aren't lossless . Apple uses the AAC codec, which is excellent, but it's still lossy compression. If you want true lossless, you have to use a cable . The AirPods Max, for example, greatly improve the quality via USB-C, although technically it's not a 100% pure stream due to the device's internal conversion.
Setup and Use on Devices
To activate these features, simply go to Music Settings and enter the Audio Quality section. There you can decide whether you want lossless audio to apply only to Wi-Fi or also to cellular data. Be aware, though, that data usage will increase significantly and your device's storage will fill up much faster than with the standard format. To optimize performance, you can check out some tips and tricks to get the most out of your iPhone.
In terms of compatibility, it's quite broad. From the iPhone 7 onward, you can enjoy Dolby Atmos through the built-in speakers. For Android and Windows , the Apple Music app also allows you to enable lossless audio, although the Dolby Atmos experience is more limited since it requires paying royalties to Dolby for each device.
Interestingly, some artists like Taylor Swift have albums in Hi-Res Lossless, while others only have standard Lossless. This depends entirely on how the original recording was made and the master the record label provided to Apple, demonstrating that the final quality always depends on the source.
In short, Apple has built an ecosystem where high-fidelity audio coexists with wireless convenience, pushing the industry towards three-dimensional sound and financially rewarding those who adapt to this new standard, ensuring that its users have the best possible quality as long as they have the right hardware.
