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#bit#audio#https#music#more#difference#high#com#between#quality

Discussion (87 Comments)Read Original on HackerNews

stego-techabout 3 hours ago
I cannot hear the difference between 16/44.1 (and by extension, 16/48) and High-Res Content generally, be they HDCD, SACD, or just straight-up Masters from Qobuz. This is on multiple sets of equipment, ranging from El Cheapo earbuds all the way to HD800 cans and full-fledged tower speakers being bi-amped.

That’s not why I go for High-Res stuff, though.

It’s all about archival, at least for me. With a 24/192 Master in FLAC or ALAC, I can downsample to whatever the destination form factor is. I can transcode to a 320kbps MP3, or a 16/48 WAV stream for a smart speaker, or a 24/96 stream for the theater. The point isn’t that I can hear the difference, it’s the fear that I might lose something irrecoverable by sticking with lower-quality files for bulk storage. Once data has been discarded, it cannot be retrieved, and that influences my preference for storage (and is also why my BD/UHD rips are into MKVs, no re-encoding).

Now that being said, I will absolutely hem and haw and ABX different releases to determine if I opt for the 16/44.1 CD rip of an album from the 80s or the new 202X remaster in 24/192 (spoiler: almost always the former), and I absolutely prefer anything with classic instruments (Jazz, Classical) in higher-quality formats because of a subjective perception of a wider, clearer sound stage, though this is almost certainly a psychological effect from performing in concert bands and orchestras rather than physical or objective in nature.

Like I tell newcommers: if it sounds better enough to you to warrant the purchase price, then that’s all that really matters. Enjoy the hobby.

saltcuredabout 1 hour ago
Decades ago, I was treated to an ABX test in my brother's recording studio. I easily recognized and preferred a 24/192 master he played versus the 16/44.1 down-mix. I honestly don't know whether there was something wrong with the down-mix, but qualitatively it did feel like it was "muffled" and coming from speakers, while the master really felt like live performance. He was surprised that I could tell them apart.

I also spent a lot of time ripping my old CDs to FLAC and trying different MP3 and AAC encoder settings to get playback that felt transparent enough to me. I could never tolerate Sirius/XM radio streaming due to the horrid compression I heard with every futile attempt. I still seem to have more sensitive hearing than most people around me, but in my 50s I know it isn't what it once was.

I never had huge budgets, but did strive for hi-fi in my limited ways. I used things like toslink and HDMI to send raw PCM data from Linux to my Yamaha A/V receiver's DACs + amplifier to drive somewhat nice Polk tower speakers. But then COVID-19 happened, and this stuff was packed up to move house.

Nowadays, music playback is streaming with mundane "subwoofer + satellite" PC speakers or MP3 playback with a mini-SD card permanently parked in my car's infotainment system.

empiricus16 minutes ago
Even for PC, I recommend some cheap studio monitors.
Cider9986about 1 hour ago
I can't hear the difference between 128 kbps opus and FLAC.
rahimnathwaniabout 3 hours ago
The article says "I've run across a few articles and blog posts that declare the virtues of 24 bit or 96/192kHz by comparing a CD to an audio DVD (or SACD) of the 'same' recording. This comparison is invalid; the masters are usually different."

It may be simultaneously true that:

A) Humans cannot tell the difference between 44.1kHz/16-bit audio and any higher resolution, and

B) For a particular song, the best commercially available 44.1kHz/16-bit version may not be the best commercially available version

zamadatixabout 3 hours ago
While 100% true, I'd phrase B) as:

"The quality of the particular mastering can still make a noticeable difference, regardless of the ability for the digital sampling rates to perfectly represent it perceptually"

Just to be clear that the statement applies to any releases meeting the A) criteria, not just 44.1 kHz @ 16-bit ones.

z_openabout 3 hours ago
As they say, most people listen to their music with equipment. Audiophiles listen to their equipment with music.
nntwozzabout 3 hours ago
This is perfect, thank you this goes straight into my long-term memory bank.

On a tangent, whenever someone mentions LP sounding warmer or whatever I like to point out that I prefer wax cylinders (a.k.a. phonograph cylinders).

fecal_hengeabout 1 hour ago
You Edison shill.
mingus88about 2 hours ago
That’s true, but I consider myself a collector. Think of how a comic book collector operates.

If I have an option to get a 16bit version of a recording or a high-res version, I choose the highest quality version very time

Same with a physical copy. A limited edition, better quality vinyl LP is more attractive if you are going through the trouble of curating a collection.

I’ve been curating a music library of digital files since before the iPod was released and I will always go for the highest quality version out of principle. I can always downsample it to any thing that makes sense.

sholladay21 minutes ago
Music producer here. High resolution audio is useful for editing and anywhere there might be downstream processing or format conversion that may or may not be high quality, let alone lossless. The article covers that pretty well.

However, the article claims that the final distribution doesn’t need to have a bit depth of more than 16. That does not match my experience. I can tell the difference between my renders that are 16 bit vs 24 bit. I cannot tell the difference between 44.1 kHz and higher sample rates, and that’s consistent with the math (Nyquist-Shannon), but bit depth is a different matter. Would be fun to participate in a double-blind test that includes my own tracks and others.

Tsarpabout 3 hours ago
This really is driving a muscle/super car, or drinking expensive wine. At the end none of specs or tests matter. It is a form of art. If it makes the listener feel better (even if its just psychological) then its probably worth it.
munchlerabout 3 hours ago
To expand on this a bit, I appreciate some audio overkill because, if I do hear sizzle or distortion, it eliminates one possible reason and helps me figure out what’s actually happening.

It’s like having gigabit internet to my house: I don’t actually need it, but when a website is slow, I know the problem isn’t in my internet connection.

smilekzsabout 2 hours ago
Well, at least there are objective performance benchmarks on cars, and some of them are okay proxies of performance in motorsports.

https://www.carwow.co.uk/blog/carwow-quarter-mile-400-metre-...

https://en.wikipedia.org/wiki/List_of_N%C3%BCrburgring_Nords...

meowfaceabout 3 hours ago
Correct. I've paid for Tidal for a decade because I just like the peace of mind that it's closer to the original recording. I'm sure it's mostly placebo, but I like it.
yellowappleabout 2 hours ago
It's also sort of an inverted “Van Halen demanding a bowl of M&Ms with the brown ones removed” thing for me, too. The vast majority of my Tidal listening happens over Bluetooth, so that 24bit/192kHz FLAC stream is just gonna get downsampled to 16bit/48kHz anyway because that's all any Bluetooth speaker or headset is capable of doing — but the fact that it's an option in the first place signals that other things are being done right, too (namely: that Tidal's whole “we're the streaming service that pays artists the most per listen” premise actually has some semblance of merit rather than being complete marketing bullshit; while recording quality ain't the strongest signal possible for that, it's certainly a good sign when musicians/publishers are willing to send over the highest-bitrate lossless recordings they've got and not just the same ol' compressed-to-shit MPEG audio you can yank off YouTube for free).
wat10000about 3 hours ago
I'd distinguish between differences that anyone can detect but some may not care about, and differences that may not be objectively detectable at all. Muscle cars, at least, are different in a way that anyone can see. Push that pedal to the floor and it feels different from a Honda Civic or whatever. Whether that difference is actually interesting or good is, of course, a matter of taste. Whereas audiophile nonsense is often indistinguishable even to the connoisseur and depends entirely on some form of self-deception. Still could be worth it, depending on what one considers worthy.
mock-possumabout 3 hours ago
That’s actually a really good comparison, especially because - yes I can hear the difference between an excruciatingly lossless digitization of a piece of music that I’m intimately familiar with, played back on expertly configured hardware… but the difference is so little, that most of the time, I’m find just listening to it at medium high quality streaming on a pair of <$50 headphones.

I’ve played with the nice toys, and they are nice, but for 100x the price, they barely deliver 1.5x the experience.

jerfabout 3 hours ago
If you can't hear the squeals of the plants [1] in the studio's reception area, are you really getting the full experience of a piece of music?

[1]: https://www.cnn.com/2023/03/30/world/plants-make-sounds-scn

Blackthornabout 3 hours ago
Oh great. And here I thought that fantasy literature where forest elves could hear the screams of the plants they stepped on when they walked was just that -- fantasy.
SketchySeaBeastabout 3 hours ago
Triffid music.
dlcarrierabout 1 hour ago
There is a good reason to distribute it though, and compressed it doesn't really change the file size.

There's multiple YouTube channels that I listen to as podcasts, that are professionally created and the creators presume that exported audio works like studio audio, so what you end up with is really quiet audio that can't be turned up without pre-processing.

If we distributed audio the same way we work with it in a studio, we could forgo a lot of problems.

Also, the human ear does have enough dynamic range to make 24 bits worthwhile, though that much dynamic range is rarely used in recordings, and that high of a bit depth provides no benefits within a small dynamic range. A 192 kHz sample rate, on the other hand, is always useless.

cozzydabout 3 hours ago
What a human centric view. I like my music to scare neighbor's pets.
WarmWashabout 3 hours ago
Foobar2000 has an extension that allows you to blindly test whether you can tell the difference between two tracks.[1] The prime use is to compare different encodings of the same song from the same lossless master.

It kind of changed me a bit when I ran through 20 lossless tracks I had re-encoded to various mp3 bitrates and realized that even on a fancy system, it can be really hard if not impossible to discern even moderate lossy from lossless.

If you are an audiophile geek, really think about if you want to try this, the reality check might crack your foundations.

[1]https://www.foobar2000.org/components/view/foo_abx

hobonationabout 3 hours ago
Counter: An ultra high bit rate solves the problem and you can stop worrying if it's the weakest link.

You can the focus on other things.

Example: I Bought the best skis possible. Now I know I need to just focus on my skills and not blame the equipment.

RijilV8 minutes ago
I hate to be the one to break it to you, but high end skis make tradeoffs which are harmful to beginner or intermediate level skiers... also there's sorta no thing as "best ski". what you'd want for high speed bombing double blacks is going to be different from off piste or moguls or snow park fun.... double also, skis wear out. Depending on who you want to believe it's as low as 20-30 days. Which, granted the average skier is at something like 5 days a year. but if that's you... triple also?

As for how this relates to audio compression, in particular in the context of 2012. you are making a tradeoff of storage size and decompression cost. Maybe that doesn't matter to you, but maybe it either did in 2012 or still does.

hackingonemptyabout 2 hours ago
The point of this article and video is there is no problem with 16-bit 44-kHZ PCM. It thoroughly covers the audible range and is there is absolutely no need for more when distributing music for humans to listen to.

The problem is the people spreading myths and disinformation out of ignorance or to promote their enterprise.

The weak links are producers/mastering-engineers, speakers/headphones and the room when using speakers.

rz2kabout 2 hours ago
My good enough amplifier and DAC combo claims up to 24bit/192kHz, I use a cheap optical interface from my computer that claims up to 32bit/192kHz, and the streaming service I use serves most albums at 24bit/44.1kHz.

It would have cost the same for the entire stack to be 16bit/44.1kHz at every step, but with excessive resolution I can control the volume anywhere. The bits right before the analog conversion at the end are essentially the same whether I turn down the volume in the software player, the operating system, or the DAC/amplifier.

PcChip28 minutes ago
you might want to see if your DAC re-clocks incoming optical, if not then it's relying on the cheap clock generator from your computer
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me551ahabout 3 hours ago
Nobody downloads music these days and everybody just streams. Audio at 24 bit still takes a small fraction of the bandwidth that 1080p video takes, so I don’t understand the hate for it.

I use a DAC by focusrite which can do 24-bit, and if I want to listen to higher fidelity audio on my planer headphones then I should be able to. Why should I limit myself to 16-bit

mingus88about 2 hours ago
Counterpoint: bandcamp is doing well. Vinyl sales are doing well.

If I like an artist that I find on streaming, I buy an LP and get a lossless download for free. I still have a music library and I will never rent my favorite music.

Artists prefer to connect directly with their fans and BC is probably the best platform for people who care to pay and support acts directly. They have high res downloads and I import them.

zamadatixabout 1 hour ago
I don't think the hate is about people who know it doesn't actually sound different if the audio file is 16 bit or 24 bit or necessarily about receiving a few more bytes than they need, it's about the pushes by these types of streaming services/offerings or people insisting that it's supposed to be any better for listening when it's not.

Also the playback rate and the file rate are different topics. The former can get into scenarios more like the audio processing section of the article e.g. I had this one shitty headset for work which required me to set the volume to 1-2 (out of 100) on the computer and I could actually blind test tell when it was in 16 bit or 24 bit mode because it was cutting and boosting it so much it effectively lost precision in 16 bit mode.

glimsheabout 3 hours ago
Just get one of those "hi fi" valve amplifiers from Amazon you see under $100. The valve already distorts the sound, so you don't need to bother paying more for low distortion anywhere else in the audio chain. Saved you thousands of dollars, done!
PcChipabout 3 hours ago
I'm curious if the audio was being sent bit-perfect to the DAC for all of these tests (ALSA direct), or if it was being run through the audio mixer and being resampled

I can always tell if my 44.1 songs are being resampled to 48 because they're being run through the OS mixer

dist-epochabout 3 hours ago
Proper audio resampling should not be identifiable. Of course, the OS mixer probably doesn't do proper (CPU expensive) resampling.

But a quality audio player should account for this and do it's own.

PcChip36 minutes ago
I'm also one of those audiophile crazies that obsesses over which metals to use in cabling, power filtering, swapping opamps, and builds their own DACs, amps, and speakers
raszabout 2 hours ago
"proper" resampling was expensive in 1997 when Intel was introducing fixed sampling AC'97, but was below noise floor of CPU load meter in 2007 when Microsoft released Vista killing hardware mixing.
LarsAlereonabout 1 hour ago
The main benefit for me is that digital watermarking becomes completely inaudible with high-res audio, but I can sometimes clearly hear it in standard resolution.
hackingonemptyabout 3 hours ago
@xiphmont also made an amazing video response to the many responses he received to this article. Using analog equipment he busts a bunch of myths and demonstrates what really happens with digital audio.

https://video.xiph.org/vid2.shtml

or on YT if you can't play it https://www.youtube.com/watch?v=cIQ9IXSUzuM

speak_onabout 3 hours ago
At a minimum, anything above 16/44.1 requires far more than just files: monitors, a treated room, listening position, DAC, etc... but most importantly - a trained ear. That last one is the most uncomfortable truth.
Blackthornabout 3 hours ago
Are you, per chance, a dog posting on the internet? Since 44.1khz sample rate is already past the range of the human ear, regardless of training.
MertsAabout 2 hours ago
You need at least twice the frequency range for sample rate in order to represent the original signal. That's slightly misleading though, that's from the Nyquist-Shannon sampling theory and it's a mathematical fact but that is true for exact numerical samples, once you add in quantization that muddies the water a bit. Taken at the extreme, it's straightforward to see why a 1 bit quantization per sample at 44.1 kHz would not capture a perfect representation of some analog signal even if there's only a 1 kHz frequency component to the signal. If we instead decide to sample at 10 MHz but still one bit quantization, now that 1 kHz frequency component can be much more accurately represented even though we're still using the worst quantization possible. Don't think of quantization like a square wave or a step pattern, think of it as "the signal is closer to here than any other discrete value".

Now in terms of realistic audio encoding, 16 bit at 44.1 kHz is designed to be a faithful representation as far as human hearing is concerned. Can someone with a trained ear potentially tell the difference between that and 24 bit at 192 kHz? In a studio environment it's possible. Most audiophile claims are dubious and a blind A/B test catches them out on most of it but the Nyquist-Shannon sampling theorem does not directly apply to quantized samples, it's about exact samples and with quantization, sampling rate is intertwined somewhat with the quantization depth.

move-on-byabout 2 hours ago
I don’t have great hearing, so I’m not sure I can really weigh in here (thanks punk concerts in my teens). I remember similar arguments around screens and 60Hz vs ‘the human eye’. I think a lot of people, myself included, can easily perceive the difference between 60Hz and something higher- given the right conditions. I would not be so quick to disregard claims of more sensitive hearing.
clawlorabout 3 hours ago
Max representable frequency is half the sampling rate (nyquist-shannon theorem), which is still a bit above normal but IIRC the extra headroom has something to do with eliminating aliasing
Blackthornabout 3 hours ago
Indeed. And what is the max frequency that a human can hear?
UtopiaPunkabout 3 hours ago
If you want to hear the difference between an audio file recorded at 44.1 and 88.2kHZ, then you need slow the audio playback down. Otherwise, a trained ear cannot physically hear the difference.
scnsabout 3 hours ago
A treated room would be the most impactful, DACs the least.
yellowappleabout 2 hours ago
The DAC is pretty impactful if it's outright incapable of outputting anything beyond the usual 48kHz :)
dijitabout 3 hours ago
huh...

So I guess the programmer equivalent is distributing .pdb's (or, symbols)

Blackthornabout 3 hours ago
Pretty good analogy. Thing is though, the person who receives the 16-bit, 44.1khz music file can always upsample it to 192khz and not lose anything in the process (heck, lots of audio stuff oversamples internally to this level or beyond, for extra aliasing headroom!). I'm not sure about expansion from 16bit to 24bit though, downward expansion isn't necessarily perfect.
gizajobabout 3 hours ago
You’d be adding 150khz and 8bits of nothing.
dist-epochabout 3 hours ago
The whole audiophile industry is built on stuff which doesn't make any sense

My favourite: "audiophile-grade" audio players which allocate a single continuous buffer of RAM into which they load/decode the whole .WAV/.FLAC file, because supposedly the CPU "jumping" between "fragmented audio" causes audible "jitter".

Of course, they don't know that what looks like continuous memory to user-code is probably discontinuous in kernel/physical RAM.

Didn't check in many years, I wonder if they created kernel level players to account for that, to have "true continuous memory"

platinumradabout 3 hours ago
Don't forget: "most players use malloc to get memory while new is the c++ method and sounds better."[1]

[1] https://www.audioasylum.com/messages/pcaudio/119979/

lmcabout 3 hours ago
> My favourite: "audiophile-grade" audio players which allocate a single contignuous buffer of RAM into which they load/decode the whole .WAV/.FLAC file, because supposedly the CPU "jumping" between "fragmented memory" causes audible "jitter".

Thanks for the laugh... this is absolutely bonkers. In case anyone is wondering, before sound hits our ears it has to go through a digital to analog conversion, which takes place on hardware independent of the CPU, operating with its own clock and buffers etc.

justsomehnguyabout 2 hours ago
Am486DX/100 was enough to decode and listen an MP3 at 22KHz (and maybe mono?) and was more than enough to listen for 44/16/2 PCM. It's 31 y.o. today.
wat10000about 3 hours ago
In addition to that, while it is possible to hit a delay and run out of buffer because memory access is slow (the most obvious would be if the input got swapped to disk at an inopportune moment), but the audible effect is really obvious. This isn't some subtle "oh my music sounds ineffably worse" effect, it's "my computer is glitching and my music is unlistenable."
billyjobobabout 2 hours ago
I can tell when my CPU usage spikes because it causes a hum through my speakers, so this does not seem that far-fetched.
justsomehnguyabout 2 hours ago
It's just means you have a shitty audio tract with not enough shielding. Move to SPDIF/TOSLINK.
bellowsgulchabout 3 hours ago
The latter is probably true, but the former does actually happen, and it's easy to accidentally do--lossless or not.
viccisabout 3 hours ago
If you try to use empiricism when it comes to certain groups audiophiles, you are going to be sorely reminded that it's basically the equivalent of healing crystals for a different type of person. 24/192 is useful for mixing/mastering, but completely unnecessary for the end product to distribute for listening.
evoabout 3 hours ago
24/192 is also great for digital synthesizers--if you're generating a waveform like a sawtooth that has theoretically instantaneous transitions, they can eat as much frequency as you can give them. Running at 44khz loses noticeable high-end content.

Most modern digital synths have already caught onto this and run internally at much higher sampling rates even if their output gets downsampled, but sometimes you run across a vintage plugin that runs at the host audio rate and working in a higher sampling rate is audible.

Blackthornabout 3 hours ago
You can generate perfect band-limited sawtooth waves at 44.1khz, there are multiple techniques for doing this and most production digital synthesizers use them.

Oversampling gives you headroom for aliases for the rest of the synth that is more vulnerable to it.

evoabout 3 hours ago
Yeah, I was oversimplifying a blit, the raw waveforms are usually okay, but I distinctly remember old-school VSTs where you couldn't achieve a nice saw lead at 44.1.
dist-epochabout 3 hours ago
No synth generates sawtooths by literally drawing a saw tooth in PCM. The distorsion you get if you do that is not subtle at all.
colmmaccabout 3 hours ago
32-bits are great for recording too because they do an incredible job of capturing the dynamic range without having to be precise on the preamp settings. It removes an entire job from the recording workflow.

192 for mixing and mastering can be useful especially if you're doing a lot of effects, especially anything that pitch shifts. But I've seen low quality phone-microphone recordings make it to the master; if you capture lightning in a bottle, it hardly matters what the settings were, what the microphone was, or anything else.

Aldipowerabout 3 hours ago
Even with mixing/mastering 96khz is enough for persisting to files. But as another commenter said, 192 is useful, if you bend and stretch samples!
tshaddoxabout 3 hours ago
They literally sell actual crystals that you’re supposed to place on top of speakers and amplifiers to make them sound better.
Blackthornabout 3 hours ago
We had a really nice crystal decoration that I happened to put on top of one of my TV speakers and, wouldn't you know it, it had this resonant frequency somewhere around specific human speech frequencies that drove us absolutely bonkers until I figured out the cause and moved it.
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teachabout 3 hours ago
(2012)
lokarabout 3 hours ago
I wonder how many people think that 24 bit audio encodes 50% “more”
recursiveabout 3 hours ago
It is 50% more headroom above the noise floor in logarithmic decibels.
Arodexabout 3 hours ago
I completely accept that human audition has limits that are easy to determine by playing a pure sound. But is it the same with music, where multiple frequencies are played and interfere with each other? Aren't some harmonics or effects created by these "inaudible" frequencies?

To try to imagine something similar: the human eye is unable to see UV light, yet fluorescent paint has a visible quality of its own compared to "normal" pigments.

0labout 3 hours ago
Obligatory mention of https://xiph.org/video/ which clears up a lot of misconceptions.
trashclusterabout 3 hours ago
24 bits is now ubiquitous and 32 bit is becoming the norm in recording studios.
evoabout 3 hours ago
32-bit float has become popular in filmmaking/field recording equipment lately because, with a microphone preamp that supports it, you can capture the entire dynamic range of the microphone--there's no accidental clipping if you drive the gain stage too hard.

It's a bit redundant for a skilled technician, they're already used to setting the gain staging, inbound compression, and feathering the mics to avoid this in 24-bit, but if you're handing a boom mic to a novice and have a scene where e.g. someone's whispering and another person's screaming, it can be nice to not have to worry about it.

lysaceabout 3 hours ago
That use case is literally addressed in the first sentence.
metalmanabout 3 hours ago
sheeesh , measly 24-bit/192kHz of course it makes no sense, unless it is downloaded through low oxyegen wire, which somehow and unfathomably, must have been omited or forgotten.
b3ornabout 3 hours ago
If it has been transmitted via hollow-core fibres it will obviously sound hollow.
waffletowerabout 2 hours ago
For typical listening (though humans can perceive bone-conducted vibrations up to 100 kHz or even 120 kHz) 16-bit-fixed/44.1kHz is a high-fidelity transport format. As a DSP researcher, I prefer 32-bit-float/44.1kHz as a transport format. I often upsample to 32-bit-float/188.2kHz or even 32-bit-float/192kHz for signal processing applications such as high-fidelity reverberation via direct and FFT convolution. While the author advocates for the transport to ear use case, I would argue that 24-bit/192kHz provides greater fidelity and resolution for sound processing. I found the pedantic arrogance of the author to be annoying. But yes, the sampling theory is an important consideration -- but so is the quality of the actual digital filters used in the DAC->ADC pipeline. They are much more forgiving and less lossy at 192kHz.
haunterabout 3 hours ago
The more the bits the better the music, easy as one two three

Don't forget to buy the new low oxygen platinum plated HDMI cables for the better experience!

/s