Vinyl vs Digital Audio

Vinyl vs Digital – which one sounds better, and what does the physics say?

Christian Steinruecken (Oct 2025)

There appears to be some debate and misinformation about the sound quality of digital music (such as FLAC files) versus that of analog music (such as vinyl records or tapes). Some people argue that vinyl records "sound better" compared to digital counterparts. That may be down to personal preference – but is there actually a difference in sound? And if so, what is causing it?

Some people argue that this perceived difference in sound quality is caused by purported limitations of digital sound recordings. For example, I've heard an argument that digital recordings are "chopped up into little bits", causing information to be lost that would otherwise be preserved in an analog medium. This argument is false.

Vinyl and digital formats can both sound wonderful, but their differences arise (A) from artistic choices made during mastering, and (B) from characteristic artifacts related to playback; not from technical limitations of digital audio. Properly sampled digital recordings can reproduce any audible analog sound perfectly.

Part 1 – Physics

Key fact: Digital sound recordings can be used to reproduce a given analog waveform EXACTLY (for any signal whose highest frequency is below half of the sampling rate, as stated by the Nyquist–Shannon sampling theorem).

Even though this fact is well known, there appear to be two common misconceptions:

Myth 1: Digital Audio is chopped into little bits.
Some people seem to think that a sampled digital representation (such as a WAV or FLAC file) is "chopped up" into samples and therefore cannot losslessly represent a smooth analog waveform. However, as per the Nyquist–Shannon sampling theorem, this is not true: any waveform whose highest frequency is below half of the digital track's sampling rate can be represented exactly.

Further to this, it is in principle possible to create a "perfect" digital capture and reconstruction of an analog waveform (to arbitrary precision, using proper low-pass filtering). There are some physical and practical limitations, but these apply to analog methods as well. The quality of digitally produced sound is limited only by practical noise levels far below audibility.

Myth 2: Analog Audio captures more detail.
Some people mistakenly believe that analog media (such as tape or vinyl) are not limited in the range of frequencies (or dynamic range) that they can record. But this is not true: in reality every physical medium has a finite frequency response and noise floor. Some people further mistakenly believe that analog media can capture "extra information" that wouldn't be captured by a digital medium. This misconception might be based on a belief that an analog medium does not store information in discrete 1s and 0s, but uses a more direct physical process to map sound into some continuous physical representation (such as the magnitization of a tape, or grooves in a vinyl record). However, even if an analog process and medium is used, no "extra information" is captured that would make such a process principally superior to a suitably chosen digital recording process.

Table showing frequency ranges of different media.
Medium	Min freq.	Max freq.	Dynamic range
Vinyl	20 Hz	20 kHz	66 dB ± 5 dB
Cassette	15 Hz	18 kHz	57 dB ± 2 dB
Open-reel tape	20 Hz	20 kHz	77 dB ± 2 dB
16-bit FLAC (44.1 kHz)	20 Hz	22 kHz	96 dB
24-bit FLAC (44.1 kHz)	20 Hz	22 kHz	144 dB
Typical human	30 Hz	15 kHz	80 dB ± 20 dB
Human limits (maximum)	20 Hz	22 kHz	120 dB (pain threshold)

Part 2 – Aesthetics

Some people claim that music reproduced from vinyl records sounds better than the same music reproduced from a CD or other digital medium.

This claim is ultimately based on a subjective and aesthetic preference, which I am not going to argue against. If a human listener prefers one sound over another (especially when tested in such a way that the listener does not know how each sound was produced) then that is fair enough. However, I am going to argue that this preference has little to do with a fundamental deficiency or limitation of digital media.

(A) Soundmix and mastering.

It seems true that many existing digital recordings differ from their analog counterparts. The practice of mastering music for a digital medium (such as early CDs) differed from that of mastering music for vinyl records (and presumably tapes as well). For example, I believe that the physical limitations of vinyl records forced sound engineers to make different choices during mastering than what they might otherwise have made, which may have affected many aspects of the sound (such as the dynamic range or the overall frequency spectrum) in a way that was characteristic of the vinyl medium. The resulting "vinyl sound" was ultimately mostly a choice (whether motivated by physics, audience expectations, or otherwise) to produce a particular waveform, though the physical limitations of vinyl records and players also affected the result.

Similarly, the early emergence of mass-produced digital media (notably the CD) led to a temptation to make different choices in the mastering process. One of these choices appeared to be to maximise the perceived loudness of the tracks (for example by applying aggressive dynamic range compression and limiting), which often negatively impacted the dynamic range. This historic trend is sometimes referred to as the "loudness war".

These choices, again, led to a particular sound profile and particular waveforms. Sometimes the same piece, mastered for vinyl and mastered for CD, could sound very different because of the different choices that were made during mastering. It is unsurprising that people might therefore prefer the sound of one of these over the other. And the mastering process used for vinyl may well have resulted in a nicer sound.

(B) Side effects of the medium.

Some analog players have characteristic sounds as side effects of the physical process that is used to play back a tape or record. These characteristic sounds may have had an impact on the subjective impressions of listeners, too (whether positive or negative).

[I will gloss over effects that are unrelated to the actual reproduction of sound, such as the aesthetics of the device used for playback, the user interface or the physical handling of records and tapes, the presence or lack of particular features, such as being able to randomize the order of tracks on an album. While these effects can also affect people's preference for a particular medium, they have nothing to do with the sound itself, and would likely disappear during a test where listeners are only asked to compare the sound, without inspecting or interacting with the playback device.]

Part 3 – Key argument

Because a digital medium can perfectly represent and reproduce any analog waveform (up to a high frequency and dynamic range), there is no reason why any effect that would be attributed to an analog playback device could not be captured and reproduced identically by a suitable digital file.

Consider a hypothetical scenario where the same piece of music exists on a CD and on a vinyl record, and that these may (or may not) have been mastered differently. Suppose both the CD version and the vinyl version are played to a listener (without knowing which is which) and the listener prefers one recording over the other.

It is then possible to construct a digital representation of the preferred sound, such as a FLAC file (regardless of whether the original source was the CD or the vinyl record). This digital file will be a perfect copy of the sound that the listener preferred, and when played back it will be identical and have the same qualities.

(In fact, this FLAC file can be mapped back onto a CD, and the sound will still be identical. In particular, that means that the sound of a tape or vinyl record can be put on any suitable digital medium, and it'll sound just as good.)

The cause of the listener's preference is not the medium, but the waveform itself (which can be perfectly represented on digital media). Different mastering processes were used for different media, ultimately leading to different waveforms with a different sound. There is no reason why these diverse mastering processes couldn't be used for digital media directly (as an aesthetic choice).

All physical and electronic playback devices (including those for vinyl, tape, and digital audio) can introduce noise and distortions to the resulting analog signal. With high-quality equipment, these unwanted side effects can be minimised below the threshold of human perception.

Digital audio has no fundamental limitations and is not the enemy of warmth or realism: it's a neutral medium that can reproduce any analog sound, including the characteristic sound of vinyl records, perfectly and indefinitely.

ADDITIONAL REMARKS

(1) Some proponents of vinyl records like that a record sounds slightly different every time it is played back. These differences stem from slight variations and imperfections in playback through the physical process. One could of course make multiple digital recordings of the same piece from the analog device, each capturing a particular playback. But then one might as well apply a digital output filter instead, or indeed just use a vinyl player. (Again, this aesthetic preference isn't caused by a physical limitation of digital audio.)

(2) Some digital formats (such as MP3) apply lossy compression to the audio signal, resulting in an approximate waveform that differs from the original. This technique is sometimes called "perceptual coding" and is mostly used to reduce the filesize of digital recordings, at the cost of a loss in representational accuracy.
These differences can be audible and perceived as distortions; the magnitude of these distortions generally depends on the parameters that were chosen for the lossy compression. MP3s with lossy compression have fewer degrees of freedom than FLACs or WAV files, and cannot generally store an exact representation of an arbitrary waveform. (If you worry about this kind of distortion, use FLAC files. Unlike MP3s, FLAC files use lossless compression that stores the original waveforms with perfect accuracy.)

(3) The Nyquist–Shannon sampling theorem (for audio) can be phrased as follows:

Any audio signal that contains no frequencies larger than Y kHz is fully determined by (and can be perfectly reconstructed from) a sequence of samples separated by less than 1/(2Y) μs.

Wikipedia has a great article on the Nyquist–Shannon sampling theorem.

(4) Because humans cannot hear frequencies above 20 kHz, any human-hearable sound can be reconstructed from a sequence of samples spaced less than 1/(2 × 20 kHz) = 25 μs apart. The gold standard sampling rate for digital audio is 44.1 kHz, which corresponds to a spacing of 22.6757 μs. There's a great Wikipedia article on the choice and history of this sampling rate.

(5) When using sampling rates above 44.1 kHz, it is possible to record sound signals outside the audible frequency spectrum of human hearing. Such recordings find use in scientific research, such as the capture of signals beyond human hearing. Recordings of higher frequency ranges (with 96 kHz or 192 kHz sampling rates) are also sometimes used during recording, mixing, and processing of studio music, as the higher sampling rate makes it easier to apply low-pass filters necessary to reduce artefacts and avoid distortions. Once production is complete, the final product is converted down to 44.1 kHz (with dithering).
The FLAC file format technically supports sampling rates of up to 655 kHz (though most practical implementations are limited to 192 kHz).

(6) The physical component that converts an analog signal to a digital signal is called an A/D-Converter (ADC), and the corresponding inverse that turns a digital recording into an analog signal is a D/A-Converter (DAC). There are ADCs and DACs of various qualities and different mechanisms of operation. To enjoy digital music in high quality, you may want to use high-quality equipment (including an excellent DAC, amplifiers, and speakers).