HDTenEightyP/NetNews huggingface dataset:
From: p.mather@sees.bangor.ac.uk (Tories Out!)
Subject: Re: CD rot
Organization: Centre for Applied Obfuscation.
Followup-To: rec.audio
Keywords: CD rot, April Fool, unethical business practices
Date: Wed, 8 Apr 1992 12:08:06 GMT

In article <1992Apr8.015002.14593@usenet.ins.cwru.edu>, kmr4@po.CWRU.Edu (Keith M. Ryan) writes:
> In a previous article, chen@digital.sps.mot.com (Jinfu Chen) says:
> 
> >I found this piece in rec.music.cd and thought readers in rec.audio/video may
> >be interested, especially those who engage in recent LP/CD wars :-)
> >
> 
> >Date: 1 Apr 92 21:33:22 GMT
> 
> Just in case no one realizes it, this was an april fools joke, albiet
> more sublte than many.

I can't say for certain that this is an April Fool's joke---probably
it is---but if so, it is probably based upon an earlier announcement about
"CD rot" which I read in the Guardian (a UK national daily newspaper)
and picked up by the rest of the media, oh, a couple of years ago now.

The Guardian's revelation was much the same as that given in the post.
Accelerated aging tests had shown that CD's could "wear out" in 5 or
10 years (or so) of manufacture.  The major reason cited was that the
printing inks used on the disc itself (giving information and decoration
on the non-playing side would), over time, react with the aluminium
substrate used in most mass-produced CDs.  This would lead to corrosion
which would eventually lead to significant bit-level errors.

It is significant, though, that this phenomenon was said to have been
discovered and reported to the press by one of the large CD pressing
outfits in the UK (sorry, can't recall their name) after they'd conducted
accelerated aging tests.  Significant because the company was introducing
a new "gold line" range of CDs in which gold, not aluminium, was used
as the substrate.  The company assured us that although more expensive,
the printing inks would not react with these "Gold CDs."

Sounds like they were just scaring up trade to me.

Cheers,

Paul.

-- 
e-mail: p.mather@sees.bangor.ac.uk

If your mailer can't reach me, I'm obviously not worth talking to.
Newsgroups: rec.audio
From: gfl@hera.uucp (27223-lenahan)
Subject: Re: Air?  Wossat? (was Re: Terms)
Organization: Bellcore, Livingston, NJ
Date: Thu, 9 Apr 92 20:42:05 GMT
Summary: Justice Stewart! How are you?

> >The best way to understand these terms is to listen to really high-end
> >systems and try to observe them.  It comes a little at a time.
> 
> simpler ones, once you've heard it, you'll recognise it, even if you
> weren't absolutely sure what you were looking for at first.

On Pornography:

"I can't yet define it , but I know it when I see it."

	Superme Court Justice Stewart

:-)

Grant

Newsgroups: rec.audio
From: smueller@sbctri.sbc.com (Steve Mueller)
Subject: Re: Blind Listening
Organization: Southwestern Bell Tech Resources
Distribution: na
Date: Tue, 14 Apr 92 17:08:13 GMT

In article <1992Apr14.165407.1@lure.latrobe.edu.au>, matgbb@lure.latrobe.edu.au writes:
> 
> However, a few years ago there was an article in the J. AES on testing
> speakers for a Swedish consumer magazine. They used 3 groups of listeners:
> Hi-Fi experienced, Musicians and Others.
> 
> The first group was much better at picking subtle differences, consistently
> recognising speakers by sound etc. However, as a group they rated most highly
> the speaker which was LEAST LIKED by the other groups (ie musicians and others)
> 
> The articled posited that the audiophiles liked what sounded most like what
> they were used to, that is their own systems, rather than the closest thing
> to live music. Measurements of frequency reponse tended to back this up:
> the musicians liked the spekers that measured best, the audiophiles didn't.
> 
A former coworker of mine went through a phase where he toyed with going
the high end route.  He joined an audiophile club in the city where he lived to
learn more.  The club decided it would be fun to go to a live symphony concert.  
It turned  out most of them left at intermission.  It didn't sound right to them.  
Make of it what you will.

Steve Mueller
smueller@sbctri.sbc.com
From: kirk@hpcc01.corp.hp.com (Kirk Lindstrom)
Date: Sun, 12 Apr 1992 06:36:49 GMT
Subject: Re: RFI from home furance ignition
Organization: Shredding the water of SF Bay, HP-OCD
Newsgroups: rec.audio

>I recently noticed that my receiver (Philips FR-60 with T-wire
>antenna) is picking up noise from the furnace ignition system.
>Only one of the frequencies I normally listen to is affected,
>89.9 MHz. The receiver is fairly new and seems OK otherwise.
>
>Any ideas for an easy fix? I assume that the noise is not from
>the power supply since it doesn't appear in the CD mode nor in
>radio reception at higher frequencies. Is this a good assumption?
>
>Thanks.
>                 Jan Gatowski
----------
Get a clamp-on ferrite and put it on different wires as close to the
igniter as possible until you find which wire having the ferrite on
it reduces the emissions the most.  If your furnace is fairly new, it
shouldn't be putting out emi.  If it is old, you might try unscrewing 
all the wire contacts, clipping 1/4 inch of the wire off, strip the
end and reinstall.  My guess it is a piezo starter and is reasonably
new so the ferrites are your best bet.

Let me know what you do and the results via email.

Oh yeah, get ferrites with a diameter just big enough to go around the
wires.
Kirk out
=> Thank God we don't get all the government we pay for.   ---Will Rogers
+-----------------------------------------------------------------------+
| Kirk Lindstrom - OCD Product R & D  | Hewlett-Packard Co.  M/S: 91UA  |
|   Engineer/Scientist, Hardware      |                                 |
|-------------------------------------| Optical Communication Division  |
|       kirk@hpoclpa.hp.com           |                                 |
|    Kirk Lindstrom / HP0100/UX       | 370 W. Trimble Rd.              |
| ph 408 435 6404 | fax 408 435 6286  | San Jose, CA  95131-1096        |
+-----------------------------------------------------------------------+
From: awc@mvaxcs2.cse.nau.edu (Asim Chowdhry)
Newsgroups: rec.audio
Subject: Infinity: for sale
Date: 13 Apr 92 17:43:18 GMT
Organization: Northern Arizona University, Flagstaff AZ
Originator: awc@mvaxcs2.cse.nau.edu


			FOR SALE
			=== ====

		  INFINITY  RS-8KAPPA

I bought these speakers last year for $2000. They are still packed
and unused. I was planning to take them back home with me, to Pakistan
after I graduate next month. But I was shocked to find out that its
costing me a lot to ship them, insured. Plus when they get there I
have to pay a lot of import duty. This all adds up to a lot of money
which I cannot affoard.

These are beautiful speakers and I wish I could keep them. I only
listened to them once then put them back in their boxes. So, they
are brand new.

I will sell these speakers to the person which gives me the best offer.
Shipping and handling extra. 

Specs:

	Frequency Response:        33Hz - 45kHz  +/- 3dB
	Crossover Frequencies:     80Hz, 800Hz, 4500Hz
	Power Rating:		   50-250 watts RMS
	Sensitivity:		   89dB @ 1 watt, 1 meter
	Normal Impedence:	   4 to 6 ohms
	Dimensions (HxWxD):	   47.5 x 20.5 x 8

These speakers permit you to use two power amps with one amp driving 
the woofers (the signal passes through the crossover network to feed
the woofers), and the other amp driving the mid-bass coupler, 
mid-range, and tweeters.

========================---------------=========================
 ____________                                         ____________   
/___/_______/\       awc@mvaxcs2.cse.nau.edu       ,-/___________/-----,
|   \   ____\/       awc@mvaxcs1.cse.nau.edu      ,--|          |-----; 
| |\ \  \ \          awc@ghost.cse.nau.edu        |__|  A C M E |____/  
| ___ \  \ \____     chowdhry@nauvax.ucc.nau.edu     |__________|/      
| |  \ \  \____/\   -=-=-=-=-=-=-=-=-=-=-=-=-=-=-    ,---|__|/----, 
|_|   \_\______\/ "I'm different from other people, /____________/|   
 Asim Chowdhry       pain hurts me." - Daffy Duck   |___________|/
From: jj@alice.att.com (jj, just the same old jj)
Newsgroups: rec.audio
Subject: Re: New LP-CD flame material
Date: 8 Apr 92 15:16:34 GMT
Article-I.D.: alice.22518
Reply-To: jj@alice.UUCP (jj, just the same old jj)
Organization: NJ State Home for Bewildered Terminals

In article <ku3jmbINNceu@network.ucsd.edu> mbk@lyapunov.ucsd.edu (Matt Kennel) writes:
>jgardner@convex.com (John B. Gardner) writes:

>: Second, CD and DCC technology are worlds apart.  Did you know that DCC 
>: actually has (variable) 18 bit resolution?

>Great.   But if everyone records with 16-bit linear no compression, this
>doesn't really help, does it?

I wouldn't say that DCC has (variable) 18 bit resolution.  I'd say that
it can handle 18 bits worth of dynamic range (as can the other algorithms
coimpeting with it), but that it rarely provides more than 4 on the average
for any given set of samples.  Of course, the whole point is that 4 is 
usually far too many, and using more sophisticated algorithms, one can
get down to 2 bits/sample, or perhaps even 1.33 bits/sample for
a stereo pair in the long run.  (1)

(1) Johnston and Ferreira, "Sum-Difference Transform Coding",
Transactions of ICASSP '92, pp II-569-572.

Oh yeah, to the fellow who cites a few references from around
here and suggested I go talk to the author, I did.  You loose.
-- 
Mars ain't *Copyright alice!jj 1992, all rights reserved, except transmission
the kind      *by USENET and like free facilities granted. Said permission is
of place to       *granted only for complete copies that include this notice.
raise the kids.        *Use on pay-for-read services specifically disallowed.
From: lstowell@pyrnova.pyramid.com (Lon Stowell)
Newsgroups: rec.audio
Subject: Re: New LP-CD flame material
Date: 9 Apr 92 00:18:04 GMT
Reply-To: lstowell@pyrnova.pyramid.com (Lon Stowell)
Organization: Pyramid Technology Corp., Mountain View, CA

In article <1992Apr8.115909.185@usenet.ins.cwru.edu> kmr4@po.CWRU.Edu (Keith M. Ryan) writes:
>
>>   It is also worth noting that each manufacturer decides whether to
>>   (and how much) to creatively skimp on the implementation and hope
>>   nobody will notice.  Such things as using 14 bit D/A convertors,
>>   analog sections poorly isolated, cheap op amps, analog sections
>>   with poor frequency response, poor mechanical assemblies, cheap
>>   lasers, and just about anything which requires much human
>>   adjustment and tuning.
>>
>
>Do you not think, that if one skimps on the non-digital parts < and even
>the D/A converter > that it can affect the sound of the CD player? If the
>RCA outputs are limited bandwidth < let's say they really messed up and
>are from 100 hz -10kHz < -3 db's > that it will affect the sound? or a
>miriad of other things.
>
   I thought that was what I said....that design decisions on the
   implementation DO affect the sound.  Or is the phrase "analog
   sections with poor frequency response" a bit too unclear?


   
Newsgroups: rec.audio
From: jhosee@zeus.calpoly.edu (Hip Hop Junkie)
Subject: Mail Order From Crutchfield
Organization: California Polytechnic State University, San Luis Obispo
Distribution: usa
Date: Tue, 07 Apr 1992 20:13:55 GMT


Has anyone ever ordered something from Crutchfield through the mail?
How do you rate thier service? How do they handle returns?
Thanks for the info!

- Jeff
From: JGATOWSK@cmsa.gmr.com
Newsgroups: rec.audio
Subject: RFI from home furance ignition
Date: 9 Apr 92 18:57:37 GMT
Organization: GM Research Labs


I recently noticed that my receiver (Philips FR-60 with T-wire
antenna) is picking up noise from the furnace ignition system.
Only one of the frequencies I normally listen to is affected,
89.9 MHz. The receiver is fairly new and seems OK otherwise.

Any ideas for an easy fix? I assume that the noise is not from
the power supply since it doesn't appear in the CD mode nor in
radio reception at higher frequencies. Is this a good assumption?

Thanks.
                 Jan Gatowski


Xref: sparky rec.audio:7481 rec.audio.pro:516
From: grego@bit.UUCP (Greg Sanguinetti)
Newsgroups: rec.audio,rec.audio.pro
Subject: Re: awesome Klipschorns and speaker lifespan
Keywords: ribbon, magnepan
Date: 15 Apr 92 15:57:53 GMT
Article-I.D.: bit.339
Reply-To: grego@bit.UUCP (Greg Sanguinetti)
Organization: BIT  Portland, OR

In article <1992Apr13.025444.15034@bpdsun1.uucp> rmf@bpdsun1.uucp (Rob Finley) writes:
>In article <11319@ksr.com> kenyee@ksr.com (Ken Yee) writes:
>>  Any other suggestions?  I'm trying to find a Magnepan and Carver dealer
>>  in the area...  That post about oxidizing ribbons also worries me..
>
>I went to a party last night and listened to a pair of Maggies that were
>so old that the guy disposed of the covers and put them behind a thin
>cloth that was about 8' high and 10' square.  They sounded incredible.
>...
>He was driving them (6 ohms) with a ADS system.
>...

My Maggies are also fairly old, at least five years but probably more like ten.
I have had no problems or audible degradation.

They do require a subwoofer as the low bass is lacking in comparsion to other
systems in their size and price range. The reduced footprint, cool looks, and
great spacial sound more than make up for the need to augment the very low end.

By the way, I am also driving them with ADS amps. The Mags do also require a
high current driver as they are not the most efficient design.

-grego
-- 
---------------------------------------------------------------------------
Grego Sanguinetti, Bipolar Integrated Technology | Water, water everywhere,
grego@bit.uucp or grego%bit%ogi.cse.edu          | but I'd rather drink
or bit!grego@ogi.cse.edu or ...!ogicse!bit!grego | beer.
From: smee@bristol.ac.uk (Paul Smee)
Newsgroups: rec.audio
Subject: Re: Info wanted for Non-audiophile
Date: 16 Apr 92 16:26:00 GMT
Reply-To: P.Smee@bristol.ac.uk (Paul Smee)
Organization: University of Bristol

In article <181097@pyramid.pyramid.com> lstowell@pyrnova.pyramid.com (Lon Stowell) writes:
>   There is an EXCELLENT British magazine, hopefully Paul or someone
>   can give you the name of it.  You can usually find it in bigger
>   cities, but my caffeine-blood mixture is a bit too lean at the
>   moment to recall the name...

Oops, have to guess.  My favorites are 'Audiophile' (which tends to be
a bit upmarket, and occasionally goes for tweaks which I think are
flaky), 'HiFi News and Record Review' (which is a bit more mid-market,
but which devotes about 1/2 its pages to reviews of newly released
'software'), and 'HiFi World' (which is even more downmarket, but is
very friendly -- it appears to be a direct descendant of 'HiFi Review'
-- I think -- which went bust about a year ago).  The first 2 of those
have US$ prices on the cover as well as UK ones, so presumably are
available over there.  (Oh, and 'upmarket' and 'downmarket' refer to
the levels of equipment they tend to concentrate on, not on their
styles as mags.)

Those are my regular buys.  There are 3 more that I'm aware of, 'High
Fidelity', 'HiFi Choice', and 'What HiFi?', which I buy occasionally
depending on what they're talking about this month.  Of these, only
'What HiFi?' lists a US$ price on the cover.  In terms of what sector
of the market they are aimed at, it appears to me that 'High Fidelity'
is upper midfi, with 'HiFi Choice' and 'What HiFi?' being progressively
lower.  (Though actually 'What HiFi?' probably comes closest of any of
them to covering the entire range of equipment -- it's just loaded
towards the low to mid level.)

The last two print tables with tiny capsule ratings based on their
reviews, of pretty much everything they've ever reviewed which is still
on the market.  'HiFi Choice' tends to print the most comprehensive
sets of measurements, charts, and graphs with its full test reports
(though they vanish in the capsules).

I'd say (and it's ONLY MY PERSONAL OPINION) that if you are relatively
new to the game, HiFi World, HiFi Choice, or What HiFi? would be a good
place to start -- get whichever one(s) you can find.  Once you've been
doing it a while, you might want to move up to, or add, one of the others.

Based on the US mags you've mentioned, I'd *guess* that it is Audiophile
that you have in mind, but I'm 300% ready to admit that might be wrong.
What HiFi? might well be the best for someone who is just starting out,
and who is on a limited budget.
-- 
Paul Smee, Computing Service, University of Bristol, Bristol BS8 1UD, UK
 P.Smee@bristol.ac.uk - ..!uunet!uknet!bsmail!p.smee - Tel +44 272 303132
From: csc228@central1.lancaster.ac.uk (Bruce 'Loodvrij' Keeler)
Newsgroups: rec.audio
Subject: Digital output of CD players.
Date: 7 Apr 92 15:38:55 GMT

Some CD players these days have raw digital outputs on them. Can anyone send
me details of the exact format of this signal inc voltage levels etc.

Thanks.

Bruce Keeler

                csc228@lancaster.ac.uk
From: disc5e6@jane.uh.edu (92S00302)
Newsgroups: rec.audio
Subject: Re: Low-Cost yet "audiophile" Amp Advice
Summary: good amps are not load sensitive
Date: 17 Apr 92 20:00:00 GMT
Article-I.D.: jane.17APR199215003153
Organization: University of Houston
News-Software: VAX/VMS VNEWS 1.41

In article <1992Apr17.181948.24451@porthos.cc.bellcore.com>, gfl@hera.uucp (27223-lenahan) writes...
>(Norm Strong) writes:
>> 
>> You've got the whole thing backwards.  First, decide what SPL you want
>> and where the system is to be located.  Then decide which speakers you
>> wish to buy.  Now--and only now--you will have some chance of choosing a
>> suitable amp for driving them to the desired level.  
[Stuff Deleted]
> 
>Norm has suggested before, and rightly so, that active speakers
>make sense since they are designed as systems, and thus can be
>optimised.  However, I cannot let this pass without my $.02.
> 
>Good amps are stable.  Period.
>In addition, most moderately priced speakers present a
>fair load, nto always an easy one, but a fair load (3 ohms +).
> 
>My experience is that a few speakers, mostly high end designs, 
>are bears to drive.  These should be avoided, unless money
>is not an object. For most applications however, good amps
>remain good amps.
> 
>I would also argue that there are 1) far fewer good budget amps than 
>good budget speakers, and 2) that speakers cannot be as easily 
>reccomended, since their vast differences make them more
>objects of opinion, compared with amplifiers.
> 
>Get an NAD integrated or receiver; I've also been pleased
>with HK.  I'm very happy with my $200, 10 year old NAD 3020.
>Since my mega-buck amps are temporarily out of service, with
>Frankenstein (me), never leaving well enough alone, I'm
>using the NAD, _and I don't hate it at 1/25 th the price
>of my monoblock monsters_.  The Vandersteens are very
>happy. 
> 
>As Norm correctly points out, the 2Cis 6.8 ohm minimum
>load doesn't hurt any.
> 
>Grant
I will have to agree with Grant.  While certain speakers will present a problem
this is not always the case.  You may eliminate certain speakers from your 
possible choices, but they are mostly high buck cost is not an issue buys.
My opinion is to go with the NAD rather than the Harmon Kordon.  I had a
friend with an HK integrated that gave him problems after only a few months
(granted this might have been a one off instance).  I currently
use an NAD 7175 reciever which i purchased 5 years ago for about $500.  
It is a 100w/ch with 6.6db of headroom and all I have been driving is
a pair of Klipsch Heresy (a very easy speaker to power).  I just recently
recieved an old(15yrs) Cerwin Vega A-1800-I power amp(225/ch) and now
my NAD is performing its role as a pre-amp/tuner quite well.  
Its power amp section will go back in use after I get a dolby
pro-logic decoder.  + Any suggestions feel free to mail me+

Although the newer model(I forget the model #)of my reciever is out of your 
price range(approx$1000) NAD makes several lower priced integrated amps
and recievers.  If expansion is in your future Pre-amp out main ins are
a feature not to be overlooked.

Just some thoughts
Ken
disc5e6@jetson.uh.edu
From: garyj@pyrtech.pyramid.com (Gary Johnson)
Newsgroups: rec.audio
Subject: Re: Upright Turntable?
Date: 14 Apr 92 17:03:47 GMT

In article <92102.223104ASOLOMO@auvm.american.edu>, ASOLOMO@auvm.american.edu (ari solomon) writes:
> 
>    Does anybody else remember an upright turntable, made by Mitsubishi, from
>  the early 1980's? This was a *beautiful* table, with a unique design: It was
>  as if you took a turntable and pulled it forward so that it sat vertically on
>  it's front end -- and then played records on it, holding them in place with
>  a big clamp! Unfortunately, its acoustic properties were less impressive --
>  subject to buzzes and resonances for one thing.   If anyone has memories of
>  this unit I'd like to hear about them -- and I'd be interested in buying one
>  at the right price, used.     E-MAIL to ASOLOMO@AUVM    -- Thanks

Are these about to become a collector's item? I have one available. They
are unique and quite a conversation piece. My reason for purchasing one
was that it was the cheapest linear tracking table available at the time.
I'll be getting a new table soon in trade for a MacIntosh 2100 amp. 
The Mitsubishi LT-5V (or was it LT-V5?) set me back $488 in '81 w/o cart.

Do I have any offers?  Now has a Shure V15 (Type III I think.)

Gary Johnson
From: henry@ginger.sri.com (Henry A. Pasternack)
Newsgroups: rec.audio
Subject: Missing sentence in my posting on distortion.
Date: 15 Apr 92 17:38:50 GMT
Reply-To: henry@ginger.sri.com (Henry A. Pasternack)
Organization: SRI International


   Sorry, I chopped out a line from the end of my lengthy posting
last night:

>It is this lack of understanding that leads to many myths regarding
>amplifier damping, woofer "speed", and so on.  Fortunately, the ear is
>quite forgiving of phase distortion, so speaker systems having steep
>crossover slopes and large, non-minimum, non-linear phase responses...

   --- please insert ---

...nevertheless can deliver quite satisfying sonic performance.

-Henry
From: jps5@ns1.cc.lehigh.edu (JASON P. STANFORD)
Newsgroups: rec.audio
Subject: Linn Turntable
Date: 15 Apr 92 14:24:15 GMT
Organization: Lehigh University


    Can someone give me their opinions of the Linn Sonographe(???) 12 (I
    believe this is the one, I never remember model numbers and names).  I'm
    interested in getting a good turntable, but will only have about $500 or
    so to spend (and maybe $150 or so for a cartridge, extra) this summer and
    will most likely buy used... any opinions?