• WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required. There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!

Correlation between sample rate and audible frequency?

ReaderZ

Addicted to Fun and Learning
Joined
Apr 14, 2020
Messages
619
Likes
415
probably

however, this claim is based on some assumptions about audibility and AFAIK that have never been carefully tested

the best analysis of claims that higher bit rates/depth can be audible is that by Reiss

I would however bet a LOT of money that bit rate/depth even if audible on the finest system, by the best-trained and youngest human listeners will not be the most or even 2nd or 3rd most important changes one should make in one's own system.

I have done some more reading on these since my last post, and I am sure I can't even hear 18khz now, so 44.1khz is enough , however 24 bit may still be nice if you have the right recording and ideal listening condition.
 

Julf

Major Contributor
Forum Donor
Joined
Mar 1, 2016
Messages
3,032
Likes
4,042
Location
Amsterdam, The Netherlands
I have done some more reading on these since my last post, and I am sure I can't even hear 18khz now, so 44.1khz is enough , however 24 bit may still be nice if you have the right recording and ideal listening condition.

I would love to come across a recording (or listening room) with more than 96 dB dynamic range...
 

Frank Dernie

Master Contributor
Forum Donor
Joined
Mar 24, 2016
Messages
6,454
Likes
15,806
Location
Oxfordshire
I have done some more reading on these since my last post, and I am sure I can't even hear 18khz now, so 44.1khz is enough , however 24 bit may still be nice if you have the right recording and ideal listening condition.
I have never come across music with a dynamic range needing more than 16 bits in over 50 years of recording.
Also, if you consider it from the "hairy arsed engineer" point of view (sorry for the language but I consider it amusing slang from the sector I worked in all my career) look at the following reasoning.
Imagine you did have a recording with the full 16-bits of dynamic range and you wanted to listen to it at home. The background noise in my very quiet room is 30dB so if I set my volume so the quiet bits of the music are at this level at my listening position so I can definitely hear them (one can hear some frequencies lower than the background noise) the peaks will be at 126dB.
That is hearing-damage level but not only that 99% of speakers, maybe more, wouldn't be able to achieve it and nor would 99%+ of amplifiers.
No sane supplier of recordings would release a mix that no customer would have the equipment to play IMO.
LPs are around 11-bit maximum and some enthusiasts like them so much they consider them more enjoyable than CDs, so 11-bit is certainly enough for a lot of people.
 

tuga

Major Contributor
Joined
Feb 5, 2020
Messages
3,984
Likes
4,285
Location
Oxford, England
I have never come across music with a dynamic range needing more than 16 bits in over 50 years of recording.
Also, if you consider it from the "hairy arsed engineer" point of view (sorry for the language but I consider it amusing slang from the sector I worked in all my career) look at the following reasoning.
Imagine you did have a recording with the full 16-bits of dynamic range and you wanted to listen to it at home. The background noise in my very quiet room is 30dB so if I set my volume so the quiet bits of the music are at this level at my listening position so I can definitely hear them (one can hear some frequencies lower than the background noise) the peaks will be at 126dB.
That is hearing-damage level but not only that 99% of speakers, maybe more, wouldn't be able to achieve it and nor would 99%+ of amplifiers.
No sane supplier of recordings would release a mix that no customer would have the equipment to play IMO.
LPs are around 11-bit maximum and some enthusiasts like them so much they consider them more enjoyable than CDs, so 11-bit is certainly enough for a lot of people.

To illustrate your point, listening to the Proms in the car means that I have to be riding the volume button all the time (one could call it manual dynamic compression).
 

Frank Dernie

Master Contributor
Forum Donor
Joined
Mar 24, 2016
Messages
6,454
Likes
15,806
Location
Oxfordshire
To illustrate your point, listening to the Proms in the car means that I have to be riding the volume button all the time (one could call it manual dynamic compression).
I gave up listening to high quality music in my car for this very reason. Highly compressed radio stations and awful-sounding-at-home recordings are order of the day in a car IME.
I actually usually gave the "radio" off when driving, it allows me to use my senses better for driving safely.
 

ReaderZ

Addicted to Fun and Learning
Joined
Apr 14, 2020
Messages
619
Likes
415
I have never come across music with a dynamic range needing more than 16 bits in over 50 years of recording.
Also, if you consider it from the "hairy arsed engineer" point of view (sorry for the language but I consider it amusing slang from the sector I worked in all my career) look at the following reasoning.
Imagine you did have a recording with the full 16-bits of dynamic range and you wanted to listen to it at home. The background noise in my very quiet room is 30dB so if I set my volume so the quiet bits of the music are at this level at my listening position so I can definitely hear them (one can hear some frequencies lower than the background noise) the peaks will be at 126dB.
That is hearing-damage level but not only that 99% of speakers, maybe more, wouldn't be able to achieve it and nor would 99%+ of amplifiers.
No sane supplier of recordings would release a mix that no customer would have the equipment to play IMO.
LPs are around 11-bit maximum and some enthusiasts like them so much they consider them more enjoyable than CDs, so 11-bit is certainly enough for a lot of people.


I think that's where close headphone and IEM comes in, if background is 30db and these can block close to 30 db, you basically have close to 0db of background noise, so that might be a thing?
 

maverickronin

Major Contributor
Forum Donor
Joined
Jul 19, 2018
Messages
2,527
Likes
3,311
Location
Midwest, USA
I think that's where close headphone and IEM comes in, if background is 30db and these can block close to 30 db, you basically have close to 0db of background noise, so that might be a thing?

1mW will get plenty of them to 115dB or greater too. :cool:

One hell of a niche market though.
 

Frank Dernie

Master Contributor
Forum Donor
Joined
Mar 24, 2016
Messages
6,454
Likes
15,806
Location
Oxfordshire
I think that's where close headphone and IEM comes in, if background is 30db and these can block close to 30 db, you basically have close to 0db of background noise, so that might be a thing?
Yes but I find a short line of tiny musicians in my head so totally artificial and unconvincing I don't notice any other shortcoming personally.
 

Frgirard

Major Contributor
Joined
Apr 2, 2021
Messages
1,737
Likes
1,043
I have done some more reading on these since my last post, and I am sure I can't even hear 18khz now, so 44.1khz is enough , however 24 bit may still be nice if you have the right recording and ideal listening condition.
24 bit is 8 empty bit. No records on this planet contain more than 80 dB.
The loudness war recording could be use with 5 bit.
20.log (2exp5) =30dB

We cannot here up fmax =22 kHz and when we are young.
The Shannon theorem has define fo=2xfmax
Nyquist has established fo=44,1kHz.

In pro the fo has been set at 48kHz.
Is someone know why?

The rest is audiophile legends and the hi-res labels are a snake oil.
 
Last edited:

Frank Dernie

Master Contributor
Forum Donor
Joined
Mar 24, 2016
Messages
6,454
Likes
15,806
Location
Oxfordshire
That's not a necessary problem with headphones.
It is the problem for me with all headphones I have tried over the last 50 years. My first pair were Koss electrostatics, bought on my first trip abroad as an exchange student to the USA in 1970. I have tried shed loads of headphones since, and being poor at selling stuff, still have about a dozen but I find the in the head micro-orchestra or micro-band impossible to actually like, as opposed to tolerate on a bus or plane.
 

pma

Major Contributor
Joined
Feb 23, 2019
Messages
4,602
Likes
10,771
Location
Prague
I think there have been already more attempts to fix the above mentioned issue of headphones listening impression. We shall see if this would succeed or not, only time will tell.

However, the physical impression of direct feel of low frequencies through human body is probably impossible to create by any SW, so it will remain the headphone listening effect, with some improvement of more natural spacious impression.
 

solderdude

Grand Contributor
Joined
Jul 21, 2018
Messages
16,051
Likes
36,427
Location
The Neitherlands
https://immersion.net/ Well, look at "products". Yes, this is 3 days into first release. Yes, I know the guts of it. Amir, if you don't want this here, go ahead pull it.

Does it require access to multitrack recording access or is it smart software that can detect signatures from instruments in stereo recordings and apply 'spatial' effects for each 'instrument' for headphones/IEM's ?
 
U

UKPI

Guest
https://immersion.net/ Well, look at "products". Yes, this is 3 days into first release. Yes, I know the guts of it. Amir, if you don't want this here, go ahead pull it.
Based on the description, it looks like a 3D mixing tool for headphones. Would you care to explain more about the "guts" of this software? Can it be used on conventional stereo material?
 

Frank Dernie

Master Contributor
Forum Donor
Joined
Mar 24, 2016
Messages
6,454
Likes
15,806
Location
Oxfordshire
https://immersion.net/ Well, look at "products". Yes, this is 3 days into first release. Yes, I know the guts of it. Amir, if you don't want this here, go ahead pull it.
Is this similar to the Smyth Realiser software?
Following glowing reports I got close to buying one earlier this year for sound surround for films but before paying the dosh I watched a whole film whilst listening to the sound on headphones and decided that however effective it was I wouldn't like the experience enough.
I suppose it is a personal thing.
 
Top Bottom