Lossless audio has become one of the biggest buzz words in the world of music streaming. Platforms like Apple Music, Spotify and Tidal all showcase the quality of the audio by promoting the concept of lossless audio. In this article, we will break down what the term actually means and answer the question: is lossless audio noticeable?
What is lossless audio?
The term lossless audio implies compressed audio files which still have all the original elements from a recording. In this way, no data is lost during the compression process and the file is identical to the source. Lossless audio has larger file sizes compared to standard audio formats like MP3 due to this fact.
The beginning of lossless audio
In the early 2000s, the Xiph.org foundation developed an audio coding format for lossless compression of digital audio called Free Lossless Audio Codec (FLAC). It’s an open format with royalty-free licensing which allows audio files to be compressed by 50-70 % without losing any quality. In comparison to MP3 which is a “lossy” audio, meaning that the audio file is compressed to reduce the file size to a more compact level, the FLAC format offers lossless audio in a size which typically halves the download time. In lossy audio files, the sampling frequency and bit depth are usually lost, resulting in a worse sound.
In 2004, Apple introduced its own lossless digital audio compression format called Apple Lossless Audio Codec (ALAC). It was supported in the iPod playback which was introduced in the middle of 2004. A few years later, Apple released the source code for the software.
Lossless audio in streaming services
In early 2014, a new streaming service was introduced, called Tidal. Its main unique selling point was the audio quality. It offered lossless audio at 1411kbps with a catalogue of over 25 million songs. For comparison, Spotify only offered audio at 320kbps. It was sort of a disruption in the music streaming industry and caused Deezer to follow just a few months later. In 2019, Amazon launched Amazon Music HD, offering lossless audio at a significantly lower price than both Tidal and Deezer. After this, the two streaming giants Spotify and Apple Music had no choice but to follow. So in 2021, Apple Music followed and in late 2025, Spotify did too.
So is it noticeable?
According to Apple Music boss Eddy Cue, 98 % of people can’t identify lossless audio. And he kind of is right. The difference is extremely small and just barely noticeable in the right conditions. It depends on circumstances like headphone quality, song master and exporting and whether you’re using a DAC (digital to analog converter) or not. In the best of the best conditions, the difference is barely noticeable. In fact, many audio engineers argue that good mastering matters significantly more than file format. A well-mastered 320 kbps track will almost always sound better than a poorly mastered lossless file.
So if you’re wondering if listening to your favorite song through wired headphones at the gym or on a bus will make a difference on lossless audio, the answer is no. If you want the full experience of listening to lossless audio, you first need a good digital to analog converter. This helps to decode lossless signals while reducing background noises with the built in DAC on a phone or computer. If this is then paired with a good pair of active speakers, the difference can be heard clearly. For example, Bluetooth has bandwidth limits that prevent it from sending full lossless audio signals. So it doesn’t really matter how good a pair of headphones you have, the signal will still get compressed making it hard to hear the true sound of the lossless audio.
What to keep in mind
As lossless audio files are significantly larger than the normal “lossy” ones, a normal song can take up to five times more in storage space. If you have a large playlist which you want downloaded in a lossless format, keep in mind that it can take up significantly more space. Lossless audio also takes longer to buffer which can make it difficult for users with shaky internet connections.
Lossless audio is already used in CDs, streaming services have been reluctant to adopt it only because it takes up a ton more storage, and therefore data capacity. So lossless audio isn’t really something revolutionary but rather something repackaged for the streaming era.
The future of audio
The strive for better audio is never-ending. As bitrates decrease, bandwidth increases, and storage becomes cheaper, the possibilities for innovation have never been greater. Immersive audio formats such as Dolby Atmos Music and Apple Spatial Audio are becoming increasingly popular, pushing the listening experience beyond traditional stereo.
Perhaps the biggest challenge for new audio technologies is keeping costs down and making them accessible to everyone. Lossless audio can only become the standard if the whole industry supports it, from hardware manufacturers to streaming companies.
Conclusion
Lossless audio has become a major selling point in music streaming. Even though it is promoted as something exclusive and modern, it has been around since the 1980s. It was first in the digital era of streaming that audio files got compressed and lost their quality. To notice the real effect of lossless audio, you need an analog converter and a good pair of active speakers or headphones. What the future of lossless audio holds is unclear, but that technology evolves more rapidly than ever is certain.