HDTenEightyP/NetNews huggingface dataset:
Newsgroups: rec.audio
Subject: Luxman DZ-120 CD player?
From: jeremy@cs.aukuni.ac.nz (Jeremy Gibbons)
Date: Tue, 10 Nov 1992 04:52:22 GMT
Organization: Computer Science Dept. University of Auckland
Cc: jeremy@cs.aukuni.ac.nz

Has anyone had any experience with the Luxman DZ-120 CD player? 

A respectable local hifi store recommends them as better than the NAD 5420
and Denon DCD-590, and the same price or cheaper than both (about NZ$600,
which is about US$300). I personally couldn't hear any difference, so would
go for the Luxman on price grounds, but was wondering whether anyone had
advice on reliability etc.

Jeremy

---
Jeremy Gibbons <jeremy@cs.aukuni.ac.nz>         tel: +64 9 373 7599
   Department of Computer Science,              fax: +64 9 373 7453
   University of Auckland, Private Bag 92019, Auckland, New Zealand.

Newsgroups: rec.audio
From: cdj@iti.org (Chris D. Jennings)
Subject: REQ: Blank tape source
Summary: XLI-S source wanted 
Organization: Industrial Technology Institute
Distribution: usa
Date: Mon, 9 Nov 1992 22:00:08 GMT


Can someone please recommend a source for Maxell XLI-S blank
cassette tapes?  I used to be able to buy them at a local store, but
haven't been able to find them anywhere in the past several months.
I was about to conclude that they were no longer made, but then I
saw an ad recently (by Maxell) that showed a picture of one.

Please e-mail your reply to cdj@hela.iti.org.  Thanks much.

P.S. Please no recommendations to switch to high bias.  I have a
20-yr. old Pioneer cassette deck that has a messed up Type II tape
circuit, and it only works with Type I tapes.  It's not worth
getting it repaired, but I want the best possible sound quality from
a Type I tape as I use it to record my band's practices, and they
are pretty good recordings if I use a good tape.  All I can find
locally are things like UDs, HFs, etc.  If you care to recommend
another good Type I tape, I'd love to hear about others.

- Chris
From: gfl@hera.cc.bellcore.com (lenahan,grant f)
Newsgroups: rec.audio
Subject: Re: HEADphone AMPLIFIERS
Summary: address SVP?
Date: 5 Nov 92 20:28:46 GMT
Organization: Bellcore, Livingston, NJ

(Henri Quiniou) writes:
>    Has anyone compared or simply listened to those 3 headphone amps:
> 
>           . Grado,
>           . Melos,
>           . Krell KSA5.
> 
> None of those company dealers here in Montreal keep those components in stock: they're only ghosts to me. Need help.
> 
> PS: Post any reply, I don't have mail!!

Henri-

What will you use the amp for?  Grados?  (They're very good).
Since you've posted about four times, I guess you are
not getting much response.

Why don't you leave a paper mail address so folks can send you
stuff.

I've heard the Melos quickly, and liked it.  Dunno what
it costs.

Can't you find a dealer that will sell you one on approval?

If you can't, buzz me, or send me a letter, and I'll
see if I can help you (I know George Bischoff).

Grant
gfl@hera.cc.bellcore.com (if your outgoing mail works)

53 Briarwood Road
Florham Park, NJ 07932 by regular, old mail.
Newsgroups: rec.audio
From: dsblack@iastate.edu (Vilkata TDK)
Subject: WANTED: Koss headphones, model K/6S+
Organization: Iowa State University, Ames IA
Date: Wed, 11 Nov 1992 21:42:10 GMT

I think the Subject line sez it all.

I'm looking for Koss K/6S+ headphones.  I saw/heard them at a CD Exchange.
And they sound awesome!

If anyone knows where I can get them, could you please email me?  Thanx!

dsblack@iastate.edu


-- 
-------------------------------------------------------------------------------
|    V I L K A T A     T . D . K .         ------dsblack@iastate.edu------    |
|         If you know what my name refers to, email me!  I forgot!            |
-------------------------------------------------------------------------------
From: keys@starchild.ncsl.nist.gov (Lawrence B. Keys)
Newsgroups: rec.audio
Subject: Re: Infinity Speakers - Any Comments
Date: 9 Nov 92 13:16:13 GMT
Organization: National Institute of Standards & Technology

In article <1992Nov9.030822.30189@ns1.cc.lehigh.edu> ptb2@ns1.cc.lehigh.edu (PETER TALAN BERGEN) writes:
>
>    Has anyone out there had any experience with Infinity Speakers.  I have a
     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Yes.

>    set and the tweeters are sh*t.  I've blown three in 2 years and Infinity
>    gives me the run around with warrenty service.  Every time they have come
>    up with a different excuse.  Once they said it was a defect in the
>    manufacturing process which they later denied even existed.  Has anyone
>    else had any trouble with Infinity speakers or their service department.
>    And for the rest of you looking for speakers, DO NOT BUY INFINITY!!!!!!

I have not had any bad experiences with my Infinity speakers.  I have had
my Infinity (Reference Series 5000) home speakers for about 4 1/2 years with
no problem at all.  As a matter of fact i enjoyed them so much that when
it came to putting speakers in my car, after listening to many brands i 
bought Infinity components (woofer/tweeter) for the front (CS-5) and for
the rear (CS-6). So for the rest of you looking for speakers, DO CONSIDER
BUYING INFINITY !!!!!!  IMO, they sound great and are an excellent value!

Larry


Newsgroups: rec.audio,rec.audio.pro
From: tholen@galileo.ifa.hawaii.edu (Dave Tholen)
Subject: Re: DAT recorders with mike input
Organization: University of Hawaii
Date: Sat, 7 Nov 1992 23:49:49 GMT

Norm Strong writes:

> Does anyone know of a one-piece DAT recorder that will accommodate 2
> phantom-powered mikes?  It does not--repeat, does not--have to run from
> batteries.  Line power is entirely adequate--maybe even preferred.  
> It's important that it be portable, and operable by someone who knows
> nothing about audio recording.  They don't have to do a world class job,
> but they should get reliable results.  

The Sony TCD-D3 has mic inputs, as well as a jack for powering those
microphones.  Might only work with Sony's microphones, but it sounds
like it's very close to the configuration you're looking for.
From: rgonzal@gandalf.rutgers.edu (Ralph Gonzalez)
Newsgroups: rec.audio
Subject: Re: MD and DCC
Date: 9 Nov 92 14:44:11 GMT
Organization: Rutgers Univ., New Brunswick, N.J.

bill@bilver.uucp (Bill Vermillion) writes:

>Just a question.  How have you determined the reliability of
>the MD?

Good point. I am assuming that MD will be as reliable as CD, and
DCC will be as reliable as analog cassette. In my experience, CD
players last longer than cassette players, require much less
cleaning and maintenance. Also, analog tapes seem to have a
lifespan of about 10 years in normal use on typical decks. If
you use them in car decks and don't keep up the maintenance, 
you can hear them degrade a lot sooner. Maybe DCC will be less
sensitive to physical deterioration of the tape, but why put
up with this when you can have MD?

-RG
-- 
Ralph Gonzalez, Computer Science, Rutgers Univ., Camden, NJ
Phone: (609) 757-6122; Internet: rgonzal@elbereth.rutgers.edu
--
From: dhembrow@eoe.co.uk (David Hembrow)
Newsgroups: rec.audio
Subject: Re: A Timer/Recorder for AM/FM Radio?
Date: 9 Nov 92 10:21:45 GMT
Organization: EO Europe Limited, Cambridge, UK
X-Newsreader: TIN [version 1.1 PL6]

I bought an oversized plug gadget a couple of years ago which contained
a digital clock and would switch whatever is attached to it off and on
at given times. I have used that to start my tape recorder to record
radio broadcasts.

Also, most ( if not all ) HiFi videos allow recording sound only from
an external source. For instance, mine allows 8 hours of sound recording
with no picture. This is great for recording from the radio ( hint - if
you can record a 'simulcast' then you can record anything from any source
including radio ).

David.

David Oesper (F1.DAO@isumvs.iastate.edu) wrote:
: Does anyone make an affordable component that allows one to record
: AM and FM radio programs in much the same way any VCR works?  What I
: am looking for would have the following features:
: 
: (1) Be able to record programs up to 2 hours long on a single tape.
: 
: (2) Have a built-in timer where you would program the time,
: frequency (on either AM or FM), and program duration (like a VCR).
: 
: In other words, what I am looking for is a VCR for radio instead of
: for television.  Does such a thing exist?
: 
: Thanks in advance for any help you can give me,
: 
: David Oesper
: Ames, Iowa
From: bad@pismo.sw.stratus.com (Bruce Dumes)
Newsgroups: rec.audio
Subject: Re: Boston high-end dealers
Date: 6 Nov 92 13:37:35 GMT
Organization: Stratus Computer, Software Engineering

In article <1992Nov5.202154.9122@porthos.cc.bellcore.com> gfl@hera.cc.bellcore.com (lenahan,grant f) writes:
>(Ahmad On) writes:
>> I'm in the market for a new system and I would like to know which dealers
>> carry what lines and most importantly, which ones are reliable and
>> knowledgable and have decent listening rooms. 
>
>
>Stereo Vision in, I believe, Arlington is an excellent
>dealer.  I know they carry Krell, Thiel, Wilson, Spica.
>There's much more, but I can't recall right now.
>
>Ask for Steve, and tell him Grant recommended him.
>Steve's very nice, knowledegeable, and reputable.
>
>Grant


I think you mean "Audio Vision".  And I second the recommendation.
Audio Vision is a great dealer, and they *really* know what they're
talking about.

Bruce "Another satisfied Audio Vision customer" Dumes


-- 
Bruce Dumes			| "Bruce is too obsessed with the Beatles"   |
Stratus Computer, Inc.		|   --comment on report card from Spring '64 |
bad@sw.stratus.com              
508-460-2816                    
Newsgroups: rec.audio
From: bhaugh@IDA.ORG (Brian Haugh)
Subject: Re: Pro Logic Center channel speakers
Organization: IDA, Alexandria, VA
X-Newsreader: Tin 1.1 PL4
Date: Thu, 5 Nov 92 19:52:17 GMT

My experience with center channel speakers leads me to conclude

that a quality center-channel transducer is essential for good

dialog reproduction, as well as for sound effects, etc.  

While in theory, its true that you will get more natural sound

from 3 identical speakers up front, in practice that is often 

not feasible.  Shielding is an important consideration because

the center channel should be very close to the video screen.

Many of us also must integrate our general audio system with our

video surround sound, and comparable shielded center channels

are rarely available that match ordinary audio speakers (Snell

is an exception, as are Yamaha & Panasonic surround sound).

In my experience, it is more important to have a center channel

close to the video screen (that is shielded as necessary), than

it is to have it matched with the side speakers.  In my experience,

listening to movies on laser-disk, there has been very little

panning of audio across the front channels and through the

center channel; more frequently, special effects sounds go front

to back, or left front to right front.

I've auditioned Yamaha, Snell, Panasonic, Bose, Definitive Technology

and other center channels, and have found the Definitive Technology

to have much greater clarity and dispersion than any of the others.

The Snell has a smoother overall frequency response (at around
$600-$800), but is not as detailed or as clear and well-dispersed

as the Definitive Technology (at ~$300).  I've used it with 

considerable satisfaction in my system with Proac Response 3 front

speakers and Definitive Technology surround speakers ($500/pair).

The Def. Tech. suround speakers are also the best ones i've heard

in such an application - their bi-polar design makes them especially

versatile and appropriate for surround applications.



Brian




Newsgroups: rec.audio
From: vanm0005@student.tc.umn.edu ()
Subject: Re: So? Anyone have dcc yet?
Organization: University of Minnesota
Date: Thu, 12 Nov 1992 18:19:10 GMT

In a previous post, someone writes:

...cassette tapes are going to be phased out in two years...

Is that to say that Philips has now strayed away from the common cassette
shell and gone to a different tape?

Just curious...


-- 
(~)~)~) o /)  _     Computer Lesson One: There is no "any" key, alternate keys
 / / / / /_) /_)                         are <shift>,<ctrl>,<caps lock>,<alt>
/ / (_(_/ (_/\_                          and sometimes <tab>.
vanm0005@student.tc.umn.edu                          -consultant at lab
Xref: sparky rec.audio:14852 rec.audio.pro:2259 comp.sys.ibm.pc.soundcard:3611 comp.multimedia:3323
From: os@IKP.Uni-Koeln.DE (Oliver Stuch)
Newsgroups: rec.audio,rec.audio.pro,comp.sys.ibm.pc.soundcard,comp.multimedia
Subject: Re: Interface Digital Audio <---> Computer ???
Date: 10 Nov 1992 15:27:56 GMT
Organization: Institute of Nuclear Physics, University of Cologne, Germany
Distribution: world
NNTP-Posting-Host: snert.ikp.uni-koeln.de

In article <BxHFx7.KFp@ux1.cso.uiuc.edu>, adcg9841@uxa.cso.uiuc.edu (flannelman) writes:
|> Hey folks.  Does anybody want to answer the original question with respect
|> to the IBM pc?  Some of us have pc's now and are not interested in the
|> NeXT or the Indigo.  I, for one, would prefer that this NOT turn into a
|> comparison of the different platforms, but instead that someone who knows
|> about the latest AES/EBU-type boards for the pc speak up with information.
|> 
|> I thought that the introduction of all those Crystal Semiconductor chips 
|> allowing one-chip (approx) interfaces between DSP's and DATs would give 
|> rise to a number of cheap DSP boards (for the pc) with AES/EBU-type interfaces.
|> I don't know the latest info on such boards.  Anybody got the scoop on
|> stuff from TurtleBeach or Spectral Synthesis?  Last i heard, none of their
|> products seemed wonderful and affordable.  And Ariel's stuff seemed wonderful 
|> although the prices seemed too high by at least a factor of 2.
|> 
|> Anyone?  Anyone??? 

Yes, Sir :-)

Jovian Logic makes a ISA card called SONIA. Here are some specs:

o 8,10,12,14,16 bit sampling @ 8,16,22,32,44.1,48 kHz

o onboard DSP (AD2105/10MHz => 10 MIPS)
  data memory 16k x 16 bit
  programm memory 8k x 8
  firmware downloadable from host	

o real time audio decompression (MPEG)

o FM synthesizer (Soundblaster compatible)

o MIDI controler (YM-3802)

o optional digital audio input/output
  AES/EBU !

Price: Sonia:   US$ 495
       digi io: US$ 195


Looks not so bad....but who can tell me the difference between AES/EBU and
SP/DIF? I assume AES/EBU is the professional norm, so I cannot connect my
home DAT-Player. Not sure...




The company's address in Europe is:

Jovian Logic Corporation Ltd.
3 Horsted Square
Bellbrook Business Park
Uckfield
East Sussex, TN22 1WQ
UK

Tel +44-(0)825-766611
Fax +44-(0)825-760401


Jovian's headquarters are in Fremont, California

Tel. 510 651 4823
Fax. 510 651 1343


Cheers,
	Oliver


-- 
 Oliver Stuch,  Institut f"ur Kernphysik,  Universit"at zu K"oln
 Phone: 0221-4703615 ||    *sigh*    || 02235-5893 || top secret
 InterNet: os@ikp.uni-koeln.de            Fax: 49 (0)221 4705168
   Lavenders blue dilly dilly Lavenders green .. summ .. dudel
From: matthews@eecs.ucdavis.edu (Thomas W. Matthews)
Newsgroups: rec.audio.high-end
Subject: Re: piezo tweeters?
Date: 8 Nov 92 22:47:04 GMT
Organization: Division of Electrical Engineering and Computer Science, UC Davis
NNTP-Posting-Host: 129.89.7.4
Originator: tjk@csd4.csd.uwm.edu


I have used piezo tweeters and have gotten them to sound OK.  
However, I wouldn't call them "high-end".  One thing I
did was to use a high-pass filter ahead of them to
raise their crossover frequency a bit.  That seemed to take the
"edge" off their sound.  The filter design is a bit unconventional
as the impedance of the driver is falling as frequency increases
(at least in the vicinity of the desired crossover frequency).
I put an 8-Ohm resistor in parallel with the piezo driver, and
calculated the value of the series capacitor based on just that
8 Ohm resistive load for the frequency desired.  

I know that the impedance presented to the amplifier at high
frequencies is the 8 Ohm resistor in parallel with the driver.
I think that the driver's lowest impedance (magnitude) is 
greater than 8 Ohms, so the parallel combination is not too much 
of a departure from 8 Ohms.

There probably are more complex ways to look at this problem,
but this is a simple modification that sounds good (IMO).

Tom Matthews
From: bill@rsphy1.anu.edu.au (Bill Alford)
Newsgroups: rec.audio.high-end
Subject: Re: Why digitize: some bunk
Date: 12 Nov 1992 04:14:09 GMT
Organization: SCU, RSPhyScE, Australian National University, Canberra
Distribution: world
Reply-To: bill@rsphy1.anu.edu.au (Bill Alford)
NNTP-Posting-Host: 129.89.7.4
Originator: tjk@csd4.csd.uwm.edu


In article <1dlq81INNjtb@uwm.edu>, kharstin@mtholyoke.edu (Ken Harstine)
writes>:
> ...
>I would be quite willing to believe that present digital systems do
>not
>represent the original sound as well as LPs for instance, however the
>problem is not with theory, but a matter of perfection of the process.
>
>---Ken Harstine

I've been pondering why it is that I've yet to hear a digital system image
anywhere near as well as a modest LP system and the conclusion that I've
come is that the basic assumptions in the current CD standard must be wrong.
I was reading in a magazine about Pioneer's Legata CD player and it was
stated, from memory, that the processes involved in human sound location
(like when we use time differences between the two ears) were equivalent
to 90KHz! Can anyone supply more information on this, as it ties in very
nicely with Prof Johnson's HDCD process (as mentioned in Novembers Sterophile
and the New York Times article for October 25, 1992).
  

===========================================================================
| Bill Alford,                            | Email: bill@rsphys.anu.edu.au |
| School Computer Unit,                   | Tel: 61 6 249 2143            |
| Research School of Physical Sciences    | Fax: 61 6 249 1884            |
|     and Engineering,                    |                               |
| Australian National University,         |                               |
| GPO Box 4,                              | "Life's a chain reaction"     |
| Canberra City, ACT 2601                 |                               |
| Australia                               |                               |
===========================================================================
From: "Peter Chong" <CHONGHGP@SGPVM1.VNET.IBM.COM>
Newsgroups: rec.audio.high-end
Subject: Basis Ovation
Date: Thu, 5 Nov 92 15:20:01 SGP
Organization: University of Wisconsin - Milwaukee
   Thu, 05 Nov 92 02:17:33 EST
NNTP-Posting-Host: 129.89.7.4
Originator: tjk@csd4.csd.uwm.edu

I am seeking opinions on the Basis Ovation. In particular, how it sounds,
in comparison to other top turntables...the Basis Gold Debut, the Versa
Dynamics 2.3 & 1.0, the Rockport 1 & 2 Sirius, the Forsell Air Reference,
the VPI TNT mk2, the Goldmund Studio & Reference. I wellcome all opinions,
especially personal experiences with these 'tables.

Thanks.
Pete
From: peterca@ento.csiro.au
Newsgroups: rec.audio.high-end
Subject: Re:  System on a budget
Date: Wed, 11 Nov 92 09:41:12 EST
Organization: University of Wisconsin - Milwaukee
NNTP-Posting-Host: 129.89.7.4
Originator: tjk@csd4.csd.uwm.edu

it was pointed out to me that I wrote:
>}Unless its is made exclusively for the American market I would expect many
>}manufacturers use a transformer with a dual primary wired parallel for
>}220/240V and in series for 110/120V.  they might save cost by not providing
>
>You got that backwards:   Series for 240v, parallel for 120v.  
Yes, thats right of course; I've had a lot of interrupted sleep lately with
a 3 week old!

----------------------------------------
Peter Campbell
C/O Div. Entomology, C.S.I.R.O.
Box 1700 Canberra A.C.T. 2601
Australia  (peterca@ento.csiro.au)
Ph.61-6-2464158 (w), 61-6-2516213 (h)
----------------------------------------
From: Mitchell.Erblich@EBay.Sun.COM (Mitchell Erblich user)
Newsgroups: rec.audio.high-end
Subject: Re: Hum Problem - Cheap fix.
Date: 12 Nov 1992 19:55:24 GMT
Organization: Sun Microsystems
Distribution: world
Reply-To: Mitchell.Erblich@EBay.Sun.COM
NNTP-Posting-Host: 129.89.7.4
Content-Length: 632
Originator: tjk@csd4.csd.uwm.edu


I solved a hum problem caused by my cable company.  The solution is to
get (2) coax to UHF/VHF connectors.  I bought them both from
radio/shack.  One has the wires coming out and the other had 2 screws.
The idea is to connect the connector with wires to the one with screws
and then continue with the coax to the VCR.  This will eliminate any
voltage on the line that causes hum.  These connectors cost about $2.99
each, so this is also a cheap fix.

Also, if both connectors have wires, then they will also work.

Sorry, I don't know the name for these connectors. They are very
common.

[They're called baluns and are 75 ohm to 300 ohm matching transformers.  -tjk]

Mitchell Erblich : merblich@EBay.Sun.COM
From: kharstin@mtholyoke.edu (Ken Harstine)
Newsgroups: rec.audio.high-end
Subject: Digital processing of sound
Date: Tue, 10 Nov 1992 20:16:58 GMT
Organization: Mount Holyoke College
NNTP-Posting-Host: 129.89.7.4
Originator: tjk@csd4.csd.uwm.edu


With regards to artifacts of 22.05kHz sampling in the <20KHz range, you are
quite right that this is likely.  If the original signal is actually
sampled at 44.1kHz than an analog filter would have to be constructed with
a stop-band of 2.05kHz.  If the original signal contains any >22.05kHz
energy which is at all comparable with the maximum signal below 20kHz,
than an analog filter with more than 10 poles would be needed.  Assuming
that it is possible to construct a filter of this order, you would still
have massive phase shift below 20kHz.  

The only hope is to greatly over-sample the signal and use a high order
digital filter.  And then you can safely reduce the signal sample rate to
44.1kHz through a process called decimation.  If the signal was originally
sampled at say 220.5kHz than after digitally filtering the signal to
20kHz, you would delete 4 of every 5 samples.  If the digital filter does
its' job, then none of the <20Khz signal is effected.  A digital filter of
an order of 100 theoretically can be constructed, and will result in <1dB
ripple, and no phase shift.  This is the beauty of digital signal
processing.   This level of processing can be done, however I don't know
of reliable 220.5kHz 16 bit A/D converters.  Also you would probably want
> 16 bits in order to get a clean 16 bit signal at the end.

The pertinent question is: does any studio, or is it even possible with
present technology to give us clean 16 bit 44.1Khz digital audio.

---Ken Harstine