HDTenEightyP/NetNews huggingface dataset:
From: janik@gfx.engga.uwo.ca (Janik Joire)
Subject: Portable DATs, DATs with mike inputs.
Organization: Univ. Western Ontario, London Ont. CA
Date: Wed, 11 Nov 1992 00:47:02 GMT

|> I own a Sony TCD-D3 and I'm very happy with it. The unit can record/playback
|> at 32, 44.1 and 48 KHz. Supplied connections include: analog in/out, mic. in,
|> phones out, optical digital in/out. Optional connections include: coax.
|> digital in/out and XLR/symmetric mic. in. The unit is very small. One hour
|> charge provides 2 hours record/playback. The sound quality of the DAC is
|> remarkable for a machine that size. All standard index management features
|> are included. The machine feels solid.
|> 
|> 				Janik

Since I posted the above article, I have received some mail from people who
wanted to know more about the optional XLR/symmetric microphone input
interface box for the SONY TCD-D3... Here it is!

The SONY SO2A Pack (TCD-D3 + EAA PSP-2 preamp.):

	XLR-3 input with transformer, symmetric XLR-3 output, 3 microphone
sensitivity levels, 80/120 Hz filter, phantom power, high-pass filter,
carrying case with belt, 2 [TCD-D3?] batteries, 6 AAs for PSP-2.

Price: $1500 (price has been converted and may be a little off)

				Janik
-- 
-------------------------------------------------------------------------------
Janik Joire                          The University of Western Ontario, Canada
Programmer / Systems maintenance                        Faculty of Engineering
-------------------------------------------------------------------------------
Office Tel: (519) 679-2111 Ext. 8112    | Home Tel: (519) 434-7601
                                        |
E-Mail:	janik@gfx.engga.uwo.ca          | Fax: (519) 661-3292
        janik@melmak.engga.uwo.ca       |      c/o Janik Joire
        janik@charon.engga.uwo.ca       |
-------------------------------------------------------------------------------
Newsgroups: rec.audio
From: quiniou@bnr.ca (Henri Quiniou)
Subject: What is a passive preamp???
Reply-To: quiniou@bnr.ca (Henri Quiniou)
Organization: Bell-Northern Research Ltd.
Date: Wed, 11 Nov 1992 16:01:57 GMT

I'm ready for technical crop: what is a passive preamp??
What is it used for (differences with "active" preamp)?
Why are they so fussy about matching impedance?

BTW, what's a buffered preamp?

Sorry about that, but I'll sure feel better after a few answers!

ps; POST replies, I don't have e-mail.

Thanx,

Henri Quiniou
From: whiting@europa.eng.gtefsd.com (claude whiting)
Newsgroups: rec.audio
Subject: Infinity Speakers
Date: 12 Nov 1992 07:18:39 -0600
Organization: UTexas Mail-to-News Gateway
NNTP-Posting-Host: cs.utexas.edu

Newsgroups: rec.audio
Subject: Infinity speakers
Reply-To: whiting@europa.eng.gtefsd.com (claude whiting)
Followup-To: 
Distribution:usa 
Organization: GTE Federal Systems
Keywords: 

There has been an irritating thread from some unknowing individuals on the 
net concerning Infinity speakers. One person had a bad experience with 
repairing his speaker and told everyone to avoid Infinity in general. Another 
individual doesn't like their sound and is telling everyone to avoid Infinity 
altogether. Come on people! Get a grip on reality!

Infinty Systems makes a full range of speaker from about $100 a pair to over 
$60,000. Within that range their are speakers that I like and others I don't, 
but I don't trash the entire company because of my one little experience. 

No speaker made is perfect. Every speaker has its strengths and its 
weaknesses. The bottom line is, if you don't like the sound of a particular 
speaker someone else will...don't make up somebody's mind for them before 
they've had a chance to listen. And listening is what its all about.

Claude
From: philg@zurich.ai.mit.edu (Philip Greenspun)
Newsgroups: rec.audio
Subject: Re: Why filter D/A output?
Date: 11 Nov 92 17:39:59
Organization: M.I.T. Artificial Intelligence Lab.
	<1992Nov10.051755.21660@lugb.latrobe.edu.au>
Reply-To: philg@martigny.ai.mit.edu
NNTP-Posting-Host: zug.ai.mit.edu
In-reply-to: MATGBB@LURE.LATROBE.EDU.AU's message of Tue, 10 Nov 1992 05:17:55 GMT


Driving a nonlinear, i.e. distorting, system, i.e. amplifier/speaker,
with a single frequency produces an output made up only of that
frequency and its harmonics.  This can be shown easily by looking at a
Taylor series expansion of a nonlinear function and seeing what
happens to cosine squared and cosine cubed terms (use trig
identities).

However, if you dump two frequencies in, e.g. cos(x) and cos(1.2x),
you'll get output at cos(0.2x) [sorry for the Lisp notation: (- 1.2 1)
or the difference between the two fundamentals] and cos(0.4x) [the
difference between the first two harmonics (- 2.4 2)], etc.

Tweeters and amplifiers may be highly nonlinear outside 20-20k and
therefore even if their output is attenuated, high amplitude 200KHz
and 201KHz signals may interact to produce an audible 1KHz tone.


--

      -- Philip Greenspun

-------------------------------------------------------------
MIT Department of Electrical Engineering and Computer Science
545 Technology Square, Rm 433, Cambridge, MA 02139
(617) 253-8574
Newsgroups: rec.audio
From: Paige K. Parsons <parsons@cambridge.apple.com>
Subject: Do any CD players have this feature?
X-Useragent: Nuntius v1.1
Date: Tue, 10 Nov 1992 01:11:36 GMT
Organization: Apple Computer, Inc.

Do you know of any players that have:

Custom track memory + random playing of custom track memory.

I want to be able to mark my favorite songs, then play the songs in a
random order. Many players have random play, and several have custom
track memory, but I haven't found any that let you use both features at
once. Please e-mail me if you have any leads. I'll post the summary if
anyone is interested.

	- Paige Parsons
	   paige@cambridge.apple.com
Xref: sparky rec.audio:14799 rec.audio.pro:2243 comp.sys.ibm.pc.soundcard:3596 comp.multimedia:3302
From: senseman@ricky.brainlab.utsa.edu (David M. Senseman)
Newsgroups: rec.audio,rec.audio.pro,comp.sys.ibm.pc.soundcard,comp.multimedia
Subject: Re: Interface Digital Audio <---> Computer ???
Date: 9 Nov 92 19:46:33 GMT
Article-I.D.: ringer.1992Nov9.194633.5354
Organization: University of Texas at San Antonio

In article <1992Nov9.144423.7532@rhrk.uni-kl.de> luitz@rhrk.uni-kl.de (Steffen Luitz [RHRK]) writes:
>
>
>
>
>Hello,
>
>what about an interface digital audio (DAT, CD optical or coax) to 
>a computer system (perhaps SCSI or a PC-board  or ...) ?
>Nooo, I don't want to make my backups with my DAT recorder, but it
>would be very interesting to edit my recordings in some way with 
>the computer and the most obvious way seems to copy data from DAT
>recorder to the computer, do the cutting, filtering ... and copy
>everything back to a DAT tape.
>
>
>Does such a beast exist ?
>Are the specs of the digital audio interface available ? 
>(If so, I could try to develop such an interface)
>Any other solutions ?
>

Silicon Graphics Inc. (SGI) has a UNIX-based workstation, the Indigo,
that does exactly what you ask using a DAT drive and program called
Multitrack capable of digital editing of 4 separate sound tracks.
Indigos aren't cheap, but they're wonderful Multi-media machines.



-- 
David M. Senseman, Ph.D.     | A man who has never gone to school may steal 
(senseman@lonestar.utsa.edu) | from a freight car; but if he has a university
Division of Life Sciences    | education, he may steal the whole railroad.
UT San Antonio               |             Theodore Roosevelt (1858-1919)
Newsgroups: rec.audio
From: piz@cbnewsl.cb.att.com (G G ZIPFEL)
Subject: Tiny speakers with Drivers?
Organization: AT&T
Distribution: na
Date: Thu, 5 Nov 1992 22:27:09 GMT


	From a friend:

We're looking for some very small but good speakers to use for some
experiments.  We currently have a bunch of the Minimus-7 Radio Shack speakers. 
We would like to find some speakers with an amplifier built-in, like the kind
of little speakers that they sell for you to plug your walkman into.  But we
don't want battery-operated.  We want plug-into-the-wall speakers.  We found an
ad in Electronic Musician for a small Fostex speaker that looks pretty good. 
We would be interested in comparing prices and specifications, particularly
size.

Would you be able to inquire as to some suggestions or recommendations from the
teeming millions out on your vast electronic network?  There is a store around
here that has the Fostex ones for about $320 a pair.  Any information you could
provide would be greatly appreciated.


	So, does anyone own any wall outlet powered mini speakers?
	Any idea where one could find a comparison of different
	brands?

	Thanks,


-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Zip   Steelers in 92!          | Illinois Basketball: More three point 
      Bubby's Benched!         | shooters than you can shake a stick at!
"I didn't lose, the Team lost" - Coach
Newsgroups: rec.audio
From: p0p4018@zeus.tamu.edu (PREMTHAMKORN, PRAKIT)
Subject: Help: Large Heatsinks Sought
News-Software: VAX/VMS VNEWS 1.41    
Organization: Texas A&M University, Academic Computing Services
Date: Thu, 5 Nov 1992 17:30:00 GMT

I am collecting parts to build a power amplifier.  I am having difficulty 
finding large heatsinks for the output transistors (TO-3 MOSFET).  The
heatsinks should rate 2-3 degree C/Watt or larger.  Any help to locate the
suppliers would be greatly appreciated.  Thank you very much.

Prakit
Newsgroups: rec.audio
Subject: Bitstream or Multibit?
From: jeremy@cs.aukuni.ac.nz (Jeremy Gibbons)
Date: Tue, 10 Nov 1992 05:03:49 GMT
Organization: Computer Science Dept. University of Auckland
Cc: jeremy@cs.aukuni.ac.nz

Can anyone explain to me, in words of less than one syllable, the
difference between Bitstream and Multibit CD players? 

Am I right in thinking:

1) the same digital data comes off the disc; the difference is in the D/A
conversion?

2) Bitstream is newer?

3) Bitstream hence produces better results or is cheaper to make?

What is the significance of "X times oversampling"? That sounds like a term
to be applied to A/D conversion, not D/A.

Why do multibit players advertise the "width" (18-bit etc) of the D/A
converter? Surely, again, the number of bits is chosen at the A/D stage? Or
is there more info on the disc (say, 32-bit samples) than is usually used,
and the D/A conversion just uses the most significant bits?

Jeremy (a CD newbie)

---
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: monta@image.mit.edu (Peter Monta)
Subject: Re: good indoor FM antenna ?
Organization: MIT Advanced Television Research Program
	<1992Nov13.001438.22586@scott.skidmore.edu>
Distribution: usa
Date: Fri, 13 Nov 1992 14:10:55 GMT

wwein@scott.skidmore.edu (warren wein) writes:

> I have a Parsec antenna (I forget the model number).

I like the name.  In the spirit of Exabyte...

Peter Monta   monta@image.mit.edu
MIT Advanced Television Research Program
Newsgroups: rec.audio
From: paula@koufax.cv.hp.com (Paul Andresen)
Subject: Teac Parts Source?
Organization: Our Lady Of The Stand-Up Triple	
Date: Wed, 4 Nov 1992 21:47:14 GMT

I have an old warhorse Teac 4010S reel-to-reel tape deck, which is in need of
a new motor. My local repair guy tells me that Teac of America no longer 
stocks the part.

Does anyone out there in net.land know anyplace that would stock such an item?
My dim mind recalls that someone in the last couple of months had posted a
place where such stuff might be available. I thought I'd saved the article,
but alas, no can find.

Any and all help appreciated. E-mail me or post as you prefer.
--------------------------------------------------------------------------------
              If you're really hip, the passing years will show.
                                           ......Tower Of Power

  paula@koufax.cv.hp.com   Paul Andresen  Hewlett-Packard  (503)-750-3511

    home: 3006 NW McKinley    Corvallis, OR 97330       (503)-752-8424
                            A SABR member since 1979
Newsgroups: rec.audio
From: david@thunder.mcrcim.mcgill.edu (David Gauthier)
Subject: REQ: information on McIntosh C20 and C22 preamps
Organization: McGill Research Centre for Intelligent Machines
Date: Fri, 6 Nov 92 03:11:07 GMT

I am interested in finding out all I can about the McIntosh C-20 and C-22 
preamps. I haven't auditioned, or even seen, either model. I am interested
in a general description of each models features, differences and current 
street price. Also, is one sonically better than the other?

I've looked at a couple of schematics of integrated McIntosh amps and
they had a 12AX7 input stage followed by a 12AU7 and a 12BH7 stage. Do either
of these preamps have this configuration?

Thanks in advance.


david
_____________________________________________________________________________
Email: david@fang.mcrcim.mcgill.ca david@[132.206.41.12]
       david@mcrcim.mcgill.ca     [132.206.1.1]
       david@mcgill-vision.uucp
_____________________________________________________________________________
From: nwsedlak@csugrad.cs.vt.edu (Neil Sedlak)
Newsgroups: rec.audio
Subject: Tradeups on Stereo Equipment?
Date: 13 Nov 92 16:21:47 GMT
Organization: Virginia Tech Computer Science Dept, Blacksburg, VA

Does anyone know of any places, (phone ordering) where they will do TRADE-UPs
on Components??? I am looking to get a new receiver, and my old one is in 
excellent shape.

These are mid-range brands by the way, I have a JVC receiver, and i want to
buy a Top of the line Pioneer.
Newsgroups: rec.audio
From: fdeck@grumpy.helios.nd.edu (francis deck)
Subject: Re: MD and DCC
Organization: OUC, University of Notre Dame
Date: Mon, 9 Nov 1992 15:49:59 GMT

I'm very interested in MD and DCC.  Two questions:  Is Sony actually
selling a recordable MD machine yet?  Also, are there vendors of the
blank MD and DCC media, and what are the prices?

For my applications, DAT sound quality is very desirable, but the
price for the machines plus the fairly expensive tapes makes the
medium unattractive.  If blank DCC's got down to near the price
of CCs, then I would start a project to transfer all of my vinyl to
digital, which I cannot afford to do at present DAT prices.  As
for the sound quality, I am encouraged by reports that there are no
audible differences.  However, I'd certainly plan to judge for myself
when, in a couple of years, the market decides which of these
technologies survives.

Sadly, this may be like the Betamax vs. VHS thing.  Beta was judged
by many to be the superior format, but for marketing reasons, VHS
won out.  However, since the average consumer has many other things
to value than absolute sound quality, DAT may also lose out.

f.deck
From: marcusj@apricot.co.uk (Marcus Jenkins)
Newsgroups: rec.audio
Subject: MS 35Ti+NAD3130 = poor bass performance?  Why?
Date: 5 Nov 92 08:59:55 GMT
Organization: Apricot Computers Limited

I have a problem that has been bugging me for a while.  I have a pair
of Morduant-Short MS 35Ti speakers and a NAD 3130 amp. (sourced from a 
Philips CD).  The speakers are connected by a couple of yards of
79 strand cable and the speakers sit on speaker stands I made myself.
I have placed the speakers on the rule of 1/3's (which, I understand
ought to give the least bass colouration) (i.e. 1/3 height of the
room, 1/3 width and 1/3 depth for placement of the centre of the 
front face of the cabinet).  MS 35Ti's are bass reflex speakers with
a forward-facing port, and the cabinet is quite large (about 2 feet
tall).

The annoying thing is that the bass performance is really thin.  A
friend of mine has a pair of MS 25Ti's (smaller cabinet, no bass
reflex, but otherwise v. similar), a NAD 3020E (less 'grunt') all
driven by a (really prehistoric) Philips CD.  His system sounds
great bass-wise (by comparison).  He placed his speakers on 1/3's,
made his own speaker stands, and connects with *thinner* cable of
the same quality.

The only difference (apart from the components) that I can guess
might be the speaker stands, or different rules being required
for siting bass reflex speakers (I have heard it said that they
ought to be sited with their backs right up against the wall).
Both sets of stands are of similar size.  Mine are made of 1.5mm
thick inch square tube, his 2mm (please excuse mixed units).  Mine
are a simple box shape with short spikes (maybe too blunt to 
penetrate the carpet, but I don't think so), his have longer, 
sharper spikes and he welded a plate to the top of the stands,
drilled it, and then bolted through the holes to clamp the speakers
to the stands.  My speakers just sit on four little spikes (adjustable
length-wise) on the top of the box frame.  Both speaker stands
are welded (solidly!).

Has anybody else got a similar amp/speaker setup to me?
Are MS35Ti's a dud?

Clues, please.

Please mail me.

 _ _ _
' ) ) )                         Internet: marcusj@apricot.co.uk
 / / / __.  __  _. . . _        UUCP: marcusj@apricot.uucp
/ ' (_(_/|_/ (_(__(_/_/_)_      If all else fails from US, try:  
Marcus Jenkins                  apricot!marcusj@relay.EU.net
Tel: +44 21 472 3002  Fax: +44 21 471 2935
Disclaimer:  Anything I wrote above is, of course, my own view and
             does not in any way represent my employer.
From: nau@ssesco.com (William Nau)
Newsgroups: rec.audio
Subject: Alternate to Rotel 955!
Date: 9 Nov 92 15:38:48 GMT
Organization: SSESCO

I'm kind of in the market for mid-line CD player.  Let's say around $400.
The less money the better of course.  I always hear about the Rotel 955.
While this is all fine and dandy, I'd like to have other choices.  Rotel
can't be the only people that make a good CD player in that price range.
They just seem to be the kind of "in" thing right now.  The same way
that the B&K 140 is the "in" low priced amplifier to which I have found
many alternatives.  I may end up with a Rotel ($50 over my budget), but
I really want to look at what else is available.  BTW the only frills that
I want are a remote control (spoiled I know) and a variable headphone
jack (my preamp doesn't have one).

Thanks much.
-- 
William R. Nau
Supercomputer Systems Engineering and Services Company (SSESCO)
511 11th Avenue South, Suite 216
Minneapolis, Minnesota 55415-1536
(612) 342-0003

nau@SSESCO.com
From: kirk@hpcc01.corp.hp.com (Kirk Lindstrom)
Date: Thu, 12 Nov 1992 15:33:55 GMT
Subject: Re: Polk MM3065 Opinions
Organization: Shredding the water of SF Bay, HP-OCD
Newsgroups: rec.audio.car

>Travis,
>	Hey man.  For more info than you care to read, just pick up
>the December issue of Car Audio and Electronics.  It compares 6.5 and
>tweets of Altec Lansing, AVI, Blau, Bostons, Clif Designs, Earthquake, 
>and Polks.  There are three graphs and what is called a MLSSA graph. 
>It compares time to freq to SPL.  Lots of info.
>
I wouldn't buy anything without first listening to MB Quart speakers.For
my $, I liked MB Quart, Polk, a/d/s and BA Pro with Quart winning my
sales dollar.

>
>I must give this disclaimer though.  I wouldnt buy any
>speakers juston this info.  I would want to hear them all for myself. 
>	CA&E is a damn good magazine and I would suggest it to
>everyone would reads this group.  I love it.

I wonder why MB Quart wasn't included in the speaker survey???

>					Scott
>----------

Happy listening
Kirk out
=> "We are what we pretend to be."  -  Kurt Vonnegut Jr.
+---------------------------------------------------------------------+
| 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: cjm9321@hertz.njit.edu (The InfoMan)
Newsgroups: rec.audio.car
Subject: Re: Crossover point
Date: 7 Nov 92 01:13:09 GMT
Organization: New Jersey Institute of Technology, Newark, N.J.

In article <1deumpINNa86@bigboote.WPI.EDU> walkerr@bigwpi.WPI.EDU (Robert A Walker) writes:
>
>	I have a question.  I'm putting two 12 inch subs in the rear of 
>mY Bronco, each driven by ~60 watts.  And i already have two 2-way 6 x 9
>mounted right behind the front seats, about 2 feet from my head.  Now,
>what would be a good crossover point to use.  The 6 x 9 will be 
>driven by 40 watts a piece.  Any help would be much appreciated, 
>would overlapping make it sound really lousy or not, and would it be
>a good idea?


	Overlapping doesn't make it lousy. I would not put 100Hz and
less into the 6x9. As for the subs below 200Hz is fine. You would
probably like it at 100Hz and less.

			Hope this helps,

-- 
M A D E   .   . .---. .---.    \  Buy U.S.A. products,  /    xxxxx ==========
  I N     |   |  \    |___|    <     It's YOUR job.     >    xxxxx ========== 
 T H E    |   |    \  |   |    <  Christopher J. Massa  >    ================
-------   `---' `---' '   `    / cjm9321@hertz.njit.edu \    ================
From: MMJ106@psuvm.psu.edu
Newsgroups: rec.audio.car
Subject: Car Stereo Competitions
Date: 5 Nov 92 16:56:33 GMT
Organization: Penn State University

Hi.  I just wanted to inform everyone who is into systems that there are car
stereo competitions.  Anyone can enter.  For more information, contact SOUND
WAVES, Car Audio and Alarms.  They have participated in many of these events
and have received many tropies.  They are located in West Chester and
Norwood, PA.  Both stores are not far from Philadelphia, King of Prussia,
and Lancaster.  They are also not too far from New Jersey, Delaware and
Maryland.  They also build competition installs and have cars for you to
listen too.  Call--(215) 696-1447.  They will be happy to hear from you.
Maybe you can visit their store or even attend a stereo competition with
them.  It is fun.  Give them a call and let them know what equipment you
have or what you want.  --MJ.
Newsgroups: rec.audio.car
Subject: RE: Some ALPINE Wiring Question
From: aleung@uwpg02.uwinnipeg.ca
Date: 9 NOV 92 22:32:43 CST
Organization: University of Winnipeg

As I know RED is for ignition. Blue is for Power Antenna. Blue/White is Remote on.
Pink is Audio Mute. I am not sure about brown/White. But I think it is a contrant contol.
Organization: Senior, Electrical and Computer Engineering, Carnegie Mellon, Pittsburgh, PA
Newsgroups: rec.audio.car
Date: Fri, 13 Nov 1992 00:08:42 -0500 
From: Amit Likhyani <al1x+@andrew.cmu.edu>
Subject: Re: Alarm for carjacking
	<kmr4.176.721582810@po.CWRU.edu>

If some bastard car jacked me, I would install a fuel line kill(remote).
 If the car gets totalled and he gets totalled with it, that would be
fine with me.

Insurance will cover the car and when a car is stolen, you probably
don't want to see it again anyway.

Maybe this is the only way to stop these vermon.

Call me violent and uncompassionate, but stick a gun to my head and your
rights lose all value to me.

Mit
Newsgroups: rec.audio.car
From: miarmijo@nmsu.edu (Michael Albert Armijo)
Subject: DREAM SYSTEM...
Organization: NMSU Computer Science
Date: Tue, 10 Nov 1992 21:13:14 GMT

Hey?! I was wondering how many of you readers have ever seen the ad by
COUSTICS in Car Audio magizine, where the ad has like 20 amps and
about 50 speakers connected to 4 crossovers?!  Well, do you think that
the ad is true?  Is that really possible?

I also have a request about what you think the ultimate dream system
would be- with amps and all!!!

Please respond to me at:

		miarmijo@NMSU.edu

Thank you!! 
Newsgroups: rec.audio.car