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Lossless Audio: What It Is, Why It Matters, How to Enjoy It

Lossless Audio

 

Music is a powerful form of expression and enjoyment. But how much do you know about the quality of the music you listen to? Do you know what lossless audio is and how it differs from other audio formats? Do you know how to enjoy lossless audio on your devices and what are the benefits and drawbacks of doing so?
In this article, we will explain what lossless audio is, why it matters, and how to enjoy it on your devices. We will also answer some of the most frequently asked questions about lossless audio, and provide some tips and recommendations for the best sources, services, devices, and headphones for lossless audio.
By the end of this article, you will have a better understanding of lossless audio and how to make the most of it. Whether you are a pro or an audiophile or a casual listener, you will find something useful and interesting in this article. So, let's get started!

updated

Author: Yuri Korzunov,
Audiophile Inventory's developer with 25+ year experience in digital signal processing,
author of the articles that make audio easy for beginners

 

 

 

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What is Lossless Audio? What Does This Mean for Me?

If you love music, you probably want to hear it in the best possible quality. But not all digital audio files and streams have the same accuracy. Some sound worse than others, depending on their compression and encoding methods.

Compression is a process that reduces the size of an audio file or stream. This makes it easier to store and transmit. However, compression can also affect the sound quality. The type and amount of information that is discarded determines the quality of the compressed audio.

There are two compression types:

  • lossless and
  • lossy.

Lossy compression discards some of the data from the original audio signal. This results in a smaller file or stream, but also a lower quality. Most music streaming services and online stores use lossy formats, such as MP3 and AAC. They offer a good balance between file size and audio quality for most listeners.

 

Lossless vs. lossy audio format
Lossless vs. lossy audio format

 

What is lossless audio compression?

Lossless compression, on the other hand, keeps all of the data from the original audio signal. This results in a larger file or stream, but also a higher quality. Audiophiles and music enthusiasts prefer lossless formats, such as FLAC and ALAC. They offer a faithful reproduction of the original recording, without any loss of detail or nuance.

So why should you care about lossless audio? Here are some reasons to listen to music in a lossless format. You will:

  • Hear the music as the artist and producer intended, without any degradation or distortion.
  • Enjoy a richer and more immersive sound. You can expect more clarity.
  • Appreciate the subtle differences between various instruments, vocals, and genres, as well as the nuances of the recording and mixing techniques.

Of course, lossless audio also has some drawbacks, such as:

  • It requires more storage space and bandwidth than lossy audio, which can be an issue if you have limited resources or a slow internet connection.
  • It may not be compatible with some devices and platforms, which may not support lossless formats or codecs.
  • It may not make a noticeable difference to your listening experience, depending on your hearing abilities, equipment, and environment.

In summary, lossless audio is a type of digital audio compression that preserves all of the original data in the audio signal, offering a higher quality and fidelity than lossy audio. If you care about sound quality and want to hear the music in its purest form, you should consider listening to lossless audio. However, you should also be aware of the trade-offs and limitations that come with lossless audio, and decide whether they are worth it for you.

 

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Lossy vs Lossless: The Difference Between Audio Formats

One of the main factors that affect the quality and size of digital audio files is the type of data compression that is used.

Compression is a process that reduces the amount of data in an audio file, making it easier to store and transmit. However, not all compression methods are the same.

Lossy compression discards parts of the information from the original audio signal. It's advantage is a smaller file. But the files also has a lower quality. Lossy compression works by removing some of the information that is deemed to be less noticeable or less important. In instance, such as the high and low frequencies, or the quiet sounds may be removed. This way, the file size can be reduced significantly, but at the cost of losing some of the original sound quality.

Lossy compression is commonly used by most music streaming services and online stores, such as Spotify, Apple Music, and Amazon Music. Some of the popular lossy audio formats are MP3, AAC, OGG, and WMA. These formats offer a good balance between file size and sound quality for most listeners, especially when the bitrate is high enough (such as 320 kbps for MP3).

However, lossy compression has some disadvantages:

  • It can introduce artifacts and distortions, such as noise, hiss, etc., especially when the bitrate is low or the compression is high.
  • It can reduce the dynamic range and the stereo separation of the audio, making it sound flat or dull.
  • It can degrade the audio quality further if the file is re-encoded or converted to another lossy format.

Lossless compression is a type of compression that preserves all of the data from the original audio signal, resulting in a larger file. Such file type has also a higher quality. Lossless compression works by finding patterns and redundancies in the data, and encoding them in a more efficient way, without discarding any information. This way, the file size can be reduced up to 50-60% without losing any of the original sound quality.

Lossless compression is preferred by professionals, audiophiles and music enthusiasts, who want to hear the music in its purest and most faithful form, without any degradation or distortion. Some of the popular lossless audio formats are FLAC, ALAC, WAV, and AIFF. These formats offer a perfect reproduction of the original recording, without any loss of detail or nuance.

In summary, lossy and lossless are two types of audio compression that affect the quality and size of digital audio files. Lossy compression reduces the file size significantly, but also lowers the sound quality, by discarding some of the data from the original recording. Lossless compression reduces the file size slightly, but maintains the sound quality, by preserving all of the data from the original audio signal.

 

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Which audio format is lossless?

Below you'll find list of lossless audio formats in PCM and DSD formats.

 

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Lossless Audio FAQ: Everything You Need to Know

Below we will answer some of the most frequently asked questions about lossless audio, and help you decide whether it is worth it for you.

 

Is lossless high-resolution audio?

Not necessarily. Lossless and high resolution are two different concepts that are often confused. Lossless refers to the type of compression that is used to reduce the size of an audio file, without losing any of the original data. High resolution refers to the sample rate and bit depth of an audio file, which determine the quality of sounding.

Lossless audio can be high resolution, but it can also be standard resolution. For example, a CD-quality audio file has a sample rate of 44.1 kHz and a bit depth of 16 bits, which is considered standard resolution. However, it can be compressed in a lossless format, such as FLAC or ALAC, without losing any quality. On the other hand, a high-resolution audio file can have a sample rate of 96 kHz or higher, and a bit depth of 24 bits or higher, which is considered high resolution. However, it can also be compressed in a lossy format, such as MQA, which will result in insignificant quality loss.

Therefore, lossless and high resolution are not the same thing, and they do not always go hand in hand. Lossless audio can have different resolutions, and high-resolution audio can have different types of compression.

 

What music is lossless?

Lossless music is music that is encoded and compressed in a lossless format, such as FLAC, ALAC, WAV, or AIFF. Lossless music preserves all of the original data and quality of the audio signal, without discarding any information. Lossless music can be downloaded from various online sources, such as Tidal, Qobuz, HDtracks, or Bandcamp. Lossless music can also be ripped from CDs or vinyl records, using software such as AuI ConverteR.

 

What is lossless audio quality?

Lossless audio quality is the highest possible quality that digital audio can have. The lossless audio doesn't cause any degradation or distortion. The quality is equivalent to the accuracy of the original recording, without any loss of detail or nuance. Lossless audio quality can be measured by the bitrate, which is the amount of data that is transferred per second. The the bitrate doesn't change the quality. Lossless audio files typically have a bitrate of 700 kbps or higher, depending on the resolution and the format.

 

Is lossless compression reversible?

Yes, lossless compression is reversible. This means that the original audio signal can be restored from the compressed file, without any loss of quality or information. Lossless compression is like a Zip file, which can be unzipped to reveal the original files, without any change. Lossless compression is different from lossy compression, which is irreversible. Lossy compression discards some of the data from the original audio signal, resulting in a smaller file, but also a lower quality. Lossy compression is like a photocopy, which can not be turned back into the original document, without some degradation.

 

Is lossy or lossless better quality?

Lossless is better quality than lossy, because lossless preserves all of the original data and quality of the audio signal, without discarding any information. Lossy reduces the quality of the audio signal, by removing some of the data that is deemed to be less noticeable or less important. Lossy compression can introduce artifacts and distortions, such as noise, hiss, or ringing, especially when the bitrate is low or the compression is high. Lossy compression can also reduce the dynamic range and the stereo separation of the audio, making it sound flat or dull.

 

 

 

Is FLAC actually lossless?

Yes, FLAC is actually lossless. FLAC stands for Free Lossless Audio Codec, and it is one of the most popular and widely used lossless audio formats. FLAC compresses the audio data in a way that preserves all of the original information, without discarding any quality. FLAC files typically have a bitrate of 700 kbps or higher, depending on the resolution and the format. FLAC files can be played on various devices and platforms, such as computers, smartphones, tablets, and music players, using software such as VLC, Foobar2000, Winamp, or others.

 

Is FLAC the highest quality?

FLAC is the highest quality, compared to lossy audio formats, such as MP3 or AAC, which have some quality loss and distortion. FLAC preserves all of the original data and quality of the audio signal, without discarding any information. FLAC offers a perfect reproduction of the original recording, without any loss of detail or nuance.

However, FLAC is not the only lossless audio format, and it may not be the highest quality, compared to other lossless audio formats, such as ALAC, WAV, AIFF, or DSD. These formats also preserve all of the original data and quality of the audio signal, without discarding any information. These formats may have some advantages over FLAC, such as compatibility with some audio software and hardware, or higher resolution.

Therefore, FLAC is the highest quality, compared to lossy audio formats, but it may not be the highest quality, compared to other lossless audio formats.

 

What is FLAC lossless level?

FLAC lossless level is the level of data compression that is applied to a FLAC file. The level affects the file size and the encoding speed. FLAC lossless level ranges from 0 to 9, with 0 being the lowest uncompressed level and 9 being the highest level. The higher the level, the smaller the file size, but also the slower the encoding speed. The lower the level, the larger the file size, but also the faster the encoding speed.

However, FLAC lossless level does not affect the sound quality, because FLAC is a lossless format, which preserves all of the original data and quality of the audio signal, regardless of the level of compression. Therefore, the choice of FLAC lossless level depends on your personal preference and your available resources, such as storage space and processing power. Default value is 5, and, it may be recommended in common case.

 

 

 

Is CD quality better than lossless?

No, CD quality is not better than lossless, because CD quality is a type of lossless audio quality. CD quality refers to the standard resolution of an audio CD, which has a sample rate of 44.1 kHz and a bit depth of 16 bits. CD quality is considered to be the minimum standard for high-quality audio, and it can be compressed in FLAC, or ALAC.

 

 

 

Is Apple Lossless better than AAC?

Apple Lossless is better than AAC, in terms of sound quality, because Apple Lossless is a lossless format, which preserves the original quality. AAC is a lossy format.

However, AAC files are much smaller than Apple Lossless files, which can save storage space and bandwidth.

Whether there will be a noticeable difference in sound will depend on your individual case.

 

What is lossless on Apple Music?

Lossless on Apple Music is a feature that Apple Music launched in June 2021, which allows users to stream and download music in a lossless format (Apple Lossless Audio Codec, ALAC). Lossless feature offers a higher quality and fidelity than the standard AAC format that Apple Music used before. Users can choose between different resolutions, from CD quality (16 bit/44.1 kHz) to high resolution (24 bit/192 kHz).

 

Is all Apple Music lossless?

No, not all Apple Music is lossless. You may need to switch between lossless and lossy formats, depending on your situation and your needs.

 

Is Apple Music lossless better than Spotify?

Apple Music lossless is better than Spotify, in terms of sound quality, because Apple Music lossless is a lossless format. Spotify is a lossy format, which reduces the quality of the audio signal, by removing some of the data.

However, Spotify's lossy stream may have some advantages over Apple Music lossless, in terms of file size, when the internet connection is slow or unstable, in instance.

Pay attention, that Apple Music also has lossy mode.

 

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How to Enjoy Lossless Audio on Your Devices

Now that you know what lossless audio is and why it matters, you may be wondering how you can enjoy it on your devices. Whether you want to stream or download lossless music, you will need some equipment and settings to make the most of it. Here are some tips and recommendations for how to enjoy lossless audio on your devices.

  • First, you will need a source of lossless music. You can either download lossless music files from various online sources, such as Tidal, Qobuz, HDtracks, or Bandcamp, or you can rip your own CDs or vinyl records using software such as AuI ConverteR or dBpoweramp. You can also stream lossless music from some music streaming services, such as Apple Music or Amazon Music HD, which offer lossless streaming options for their subscribers. Read more...
  •  Second, you will need a device that can play lossless music. You can use your computer, smartphone, tablet, or music player, as long as they support lossless formats or codecs. However, not all devices have the same capabilities and quality when it comes to playing lossless music. Some devices may not support high-resolution lossless music, which requires a higher sample rate and bit depth than CD-quality lossless music. Some devices may also have poor built-in digital-to-analog converters (DACs), which can affect the sound quality of the music. Therefore, you may want to invest in a dedicated device or an external DAC that can handle high-resolution lossless music and deliver a better sound quality. See more...
  • Third, you will need a pair of wireless headphones, or speakers, or surround loudspeakers that can reproduce lossless music. For ordinary acoustic devices that feed via wires it is not matter.
  • Fourth, you will need to adjust some settings on your device and your source of lossless music. You will need to enable the lossless option on your music streaming service's application. Also, you may need to choose the resolution that suits your preferences and your devices. It is desirable to disable any sound enhancements or equalizers on your device or your music player, as they can alter the sound quality of lossless music. You will also need to use a wired connection between your device and your headphones or speakers, as wireless connections can introduce compression and interference to lossless music. You will also need to use a high-quality cable that can transmit lossless music without any loss or distortion.

By following these tips and recommendations, you can enjoy lossless audio on your devices, and experience the music in its highest quality and fidelity. However, you should also be aware of the trade-offs and limitations that come with lossless audio, such as the larger file size and bandwidth, the compatibility issues, and the subjective perception of sound quality. Lossless audio is not a guarantee of a better listening experience. And, it may not be worth it for everyone. Therefore, you should decide for yourself whether lossless audio is something that you value and enjoy, or something that you can live without.

 

 

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Tips

If you have an audio file, you can change its resolution to reach maximum sound quality for your music device. Lossless source file allows keep maximum quality in the conversion. Read details...

 

 

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Frequently Asked Questions

 

Which Lossless Audio Format Is the Best?

The WAV audio format is nearly unlimited in supported audio resolution. The output from high-resolution codecs requires substantial hard disk space. For WAV files larger than 4 GB, the WAV/RF64 format is utilized.

The FLAC format has no such size limitation as .wav, but its maximum resolution is 384 kHz / 32-bit in certain implementations.

DSD files are a distinct category that can offer fewer distortions than PCM formats (WAV, FLAC, AIFF, etc.) in some hardware setups. In other scenarios, PCM files may provide superior sound quality compared to DSD files. Read more...

Therefore, the best lossless format depends on your equipment.

 

What Is the Most Lossless Audio File?

The term 'lossless' applies equally to all file types; they all deliver the same sound quality. For example, WAV and FLAC files offer identical quality.

However, the term 'lossless' can have different interpretations. For instance, MQA is not 'lossless' for 24-bit resolution in the 'bit-perfect' sense, although the format provides high quality.

Read about what 'lossless' means in a general sense here.

Learn more about MQA.

 

 

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