Understanding Sample Rate

[Spacehound]

17 minutes ago, sandyk said:

 but I have no way of knowing.

I do however know that there are specialised hearing aids designed around bone conduction.

Presumably used by people who are deaf at 57KHz?

I will buy one. Please post me  a currently inaudible but  sufficiently musical  file.

 

[Spacehound]

5 minutes ago, Ralf11 said:

 

used by jet pilots

Listen to a lot of high-pitched music do they?

[Spacehound]

4 minutes ago, mansr said:

Bone conduction doesn't work for airborne sounds.

That won't  stop him.

 

Do you like my signature? It's  a recent personal  award from  Stereophile.

[Spacehound]

4 minutes ago, kumakuma said:

Bone conduction headsets are used in tactical environments:

 

http://www.safariland.com/special-ops-systems-offline/tabc-iii-tactical-bone-conduction-headset-TABC3_0.html&start=1#sm.000d6tp64yzad4t118q29e4uzoage

 

Not at 57K they aren't

[Spacehound]

Just now, Ralf11 said:

 

Well, the Navy uses dolphins in tactical environments, so maybe...

They don't need them, they can hear  57K easy.

 

Are they US citizens? Can't have any North Korean ones. Mexican ones are even worse..

[Spacehound]

8 minutes ago, kumakuma said:

 

Maybe someone needs to create an updated version of the old JS&A Bone Fone.

 

That won't work, the bone's got to be real close to your ears, as illustrated:

 

 

[Spacehound]

18 minutes ago, esldude said:

You think Mexican dolphins are working with Mexican dogs on infiltration? Or is that Bill Scott's dog?

I've only ever seen a 'culturally appropriated'  imitation Mexican. Never a real one.

[Spacehound]

16 minutes ago, Ralf11 said:

 

I will see your special ops option and raise you many kHz....

 

 

Our  military are all pretty ladies. So pretty they scare the hell out of ISIS.

[Spacehound]

1 hour ago, esldude said:

Was it possibly impulse testing?  They do impulse testing of infants.  They can tell by the way the reflection is shaped if the hearing mechanism is functioning or not. 

With children it's called a smack, not an impulse.

[Spacehound]

13 minutes ago, beerandmusic said:

 

>>> DAC can be able provide lesser distortions for mode 192 kHz/24 bit/PCM than for 96 kHz/24 bit/PCM.
Therefore, conversion of audio file resolution to 192 kHz/24 bit/PCM is recommended for playback at the DAC.

 

I checked out your site briefly, and it is very interesting to me, but I see your English is not so well.  It may make sense to find a friend that can update your site with better English...just a thought...It may help you gain sales.

It's a  whole lot better than your Russian, gospodin.

 

Anyway, Trump's bought his entire stock.

[Spacehound]

19 minutes ago, esldude said:

 

This sounds like revisionist history.  

'Digital' TV antennas

The only reason why SACD ever existed was Sony's  attempt to control the market.

[Spacehound]

5 hours ago, Don Hills said:

 

"... the usual phase response of a shared converter player was shown. This produced a negligible phase difference at low and middle frequencies, rising to a maximum of 71 degrees at 20 kHz. As yet this has not been confirmed as being of any audible importance, unless the channels are mono-ed. ..."

- HFN&RR, March 1985.

I don't have the rest of the issue, so I could be wrong about the tester being Martin.

The Colloms never says anything critical . The  'industry' is his source of income.

70 degrees is a whole lot,  and he carefully avoids telling us what it was at 15KHz or so where it will be more noticeable..

[Spacehound]

3 hours ago, audiventory said:

Thank you for feedback. You are right about English level. I hope, the level of latest articles is above level of first ones

 

Your English is fine.  'Understandable'  is all that's needed.

(As  an English  person living in England  I think the American's is  not so 'perfect' either.)

[Spacehound]

7 hours ago, sandyk said:

 

He is at least as trustworthy as you are, and far more well known than an anonymous E.E. like yourself.

This means that he will have had his work far more peer reviewed than you have had..

When all else fails........

 

Trustworthy? It's how The Colloms   makes his money. Well known?  His dog knows him but the Beatles he ain't.

[Spacehound]

1 hour ago, semente said:

That's nothing compared to the soon to be US army of armed schoolteachers. 

We've got some  special forces too. Here's two of them at Paul Hines cottage getting the Iranian guy's power supply money back  to enhance 'friendly trade'.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[Spacehound]

57 minutes ago, esldude said:

I didn't post any links earlier as I was posting from a phone. 

 

Here is the first Sony SACD player.  Down -3 db at 40 khz.  The very first SACD player from Sony or anyone.  Looks like the filtering was already amended from day one. 

https://www.stereophile.com/content/sony-scd-1-super-audio-cdcd-player-measurements-sacd-player

 

A later SACD player form Sony showing 3 db down by 50 khz.

https://www.stereophile.com/content/sony-scd-xa9000es-sacd-player-measurements

 

 

Another later Sony SACD also down 3 db at 50 khz.

https://www.stereophile.com/content/sony-scd-c333es-sacdcd-player-measurements

 

Yet another with the same result from Sony.

https://www.stereophile.com/content/sony-scd-xa777es-multichannel-sacdcd-player-measurements

 

Tweeters burned out, I don't know.  You can do that with a cassette as far as that goes.

 

100 khz response, don't see it here.  

 

dCS SACD player down 3 db at about 80 khz. 

https://www.stereophile.com/content/dcs-p8i-sacd-player-measurements

 

 

There was a Krell player that rolled off about 65 khz.  A Cary that made 40 khz (which was for the most part the norm for SACD players).  

 

Find some data, not some anecdotes.  "I burned out my tweet because the SACD goes to 100 khz and has tons of noise above." Yeah, right. 

 

The Colloms and "many members" have posted anecdotes.

[Spacehound]

1 hour ago, Ralf11 said:

 "many, many members"

 

The Colloms !!

Martin Colloms

He's a British self-proclaimed  'expert'  on  audio and the  unknowing Captain of sandyk's Pretorian Guard, (which has the regimental  motto  of  "Many  Members"). He was granted this eminent position   as he is rumoured  to have  agreed with sandyk once, but only 'statistically'.

 

Also at the top of his website he says he is an 'Expert Witness'. As he doesn't say what on we can only assume it's everything.

 

Thus he is the  perfect target for derision  

 

[Spacehound]

14 minutes ago, Ralf11 said:

he isn't just self-proclaimed tho - isn't he an engineer?

 

I do understand the ultimate insult you used however "British" 

So he claims. AFAIK he has never been known to make anything.

 

Quite. The EU uses it too  We of course have a special name for them - "foreigners" (once "natives")  both of which are pejorative by definition.

[Spacehound]

5 hours ago, sandyk said:

No I don't.

Spacecadet has insulted M.C by questioning his qualifications , when a simple Google search would have provided a great deal more information including the facts that he is a qualified E.E. , Consultant, and even a well respected speaker designer

"Arrogant and pompous ass like you" - sandyk about Spacehound.

"So he claims. AFAIK he has never been known to make anything"  - Spacehound about The Colloms.

 

That's not an insult at all, it's just taking the piss. He's a ****ing Pom too  

And there's not much about him on the  'net except his own claims.

 

Has he made anything? Or just wrote a book? "Consultant"?  What on? It's not a qualification.

I was asked how to catch a trout once. Does that make me one? If so, bow down and kiss my ass.

 

Anyway, I thought you didn't like EE's?  You're always rabbiting on about how useless thy are. You even called me one,, and you meant it as an insult   

[Spacehound]

2 minutes ago, wgscott said:

 

A trout?

It was the cause of my getting married in 2001.  Don't ask, but the marriage  wasn't  directly connected  to the trout, but he  was 'circumstantial'. Very much so.

[Spacehound]

6 hours ago, mansr said:

Yes, you manage to stay just on the right side of the line.

More like for some mysterious  (though not  that mysterious) reason he gets away with insults that would have had  anyone else booted out the door years ago.

He insults almost everyone who  has the temerity to disagree with his sometimes 'unusual'  ideas.

(I well-remember what he said about you just the other day)

[Spacehound]

1 hour ago, Ralf11 said:

can we ridicule groups of hominids?

We and the supporting  cottage  'industry' already are.

"Only the intelligent can afford to make fun of themselves" - Einstein. 

 

Believing myself, maybe falsely, to be so,  I live by that statement  almost 100% of the time. It real riles  Mrs Spacehound.

[Spacehound]

47 minutes ago, Fokus said:

 

A bit off topic, but while MC has a bit of an ego, the man also has some achievements. He co-founded Monitor Audio, later had Colloms Electroacoustics, a consultancy company active in design and forensics, IIRC. MC was responsible for a number of speaker and amp designs in the 80s and 90s, including Celestion and Aura. These are just the things I happen to know, as a relative outsider.

 

Why Spacehound’s untempered vitriol towards these British audio personalities? Is he the Angry Old Man of the UK hifi scene?

 

Not in the  least,

 

I was 'taking the piss' out of sandyk's  constant habit of dragging in Colloms opinion only once expressed and only on one subject  as  strong evidence that most of sandyk's ideas are correct.

 

Colloms once 'passed'  a supposedly  'blind' test  of sandyk's  ludicrous  claim  that  WAV files are degraded by electronic transportation (wires). This turned Colloms into a 'god', if an unwitting one. 

And Colloms maybe unintentional claim  to be  an 'Expert Witness' on everything is good for  a laugh.

 

Neither did I invent the term "The Colloms" - it was someone else on this site (but I think it's great).

 

What British hifi industry?  At a quick 'offhand' look there is   only Arcam (partly), Linn, and Sugden.

I personally wrote off Linn years ago as their well-known turntable is an exact copy of somebody else's,  resulting in a court case that neither side could  afford to fully pursue.

[Spacehound]

26 minutes ago, sandyk said:

I would suggest that you should have done more research before jumping to your previous conclusions. He was also the editor of U.K. magazines such as HiFi News and Record Review at one stage, when it also published quite a bit of technical content and Audio Projects from authors such as Ben Duncan,(High Performance Audio Power Amplifiers for music perfomance and reproduction) 

I don't have a problem with Pommies in general, ( unless they don't use SprayFresh in summer) as I have a couple of good online friends from a  U.K. Audio Forum  , one of whom is a Virgin pilot, and several of us have had some very enjoyable GTGs with him when  Virgin was flying to Au.(Jon drinks his beer cold too !)

I don't have a problem with E.E.s in general either ,only those that believe that Subjective reports are a complete waste of time, as everything needing to be known, is already known.

 I actually have 2 qualified E.E. friends who I first met when they started their working lives at a Jaycar Electronics store in Sydney before going to Uni. One of these E.E.s has also participated in several of our GTGs.

He writes  for magazines for money. So what? I used to  write for 'Orchid Review',   a non-profit orchid magazine run by the 'British Orchid Society'  and the largest orchid magazine in Europe. It's no big deal.

 

What a shame for the pilot. I'm one too,  and have sex at (rare) intervals. Does being a pilot make him a noted audio 'expert' or is it just one of your many  'appeals to authority'?

 

From your posts you appear to throw insults at every EE who disagrees with you. Mansr is a recent example.

 

Subjective reports? Unless they are repeatable by everyone who tries the same   They are totally worthless.

[Spacehound]

9 minutes ago, beerandmusic said:

uPlease warn spacehound too...he has done it numerous times and been here only a very short time. and I have yet to have seen him be warned...IMHO, spaceman is one of the most arrogant people on this site, and he even admitted himself in one of his posts that he called himself  a jackass....he deserves anything he gets to help put him in his place.  I don't even mind people that are arrogant when they don't do it specifically to demean others, but he is one of the lowest forms of life.  It is people like him that is the only reason i wish you would consider a point system...there are probably only about 3 or 4 people i would put in the same league as spaceman, where 90% of what they post is of trolling smart ass nature, and those 3 don't even include GUTB.

I just accept known physics is all.  Even that part of physics  known to  others but not to myself.

 

You have demonstrated that you only accept your 'beliefs and have on occasions actually admitted ("I don't want to know that")  that you are wilfully ignorant.

 

Thus only the very staunch remain 'on topic' in this thread. The others have long left.