HDTenEightyP/NetNews huggingface dataset:
From: dlou@sdcc3.ucsd.edu (Dennis Lou)
Newsgroups: rec.audio.car
Subject: Re: DCC
Date: 3 Jan 93 05:00:44 GMT
Reply-To: dlou@ece.ucsd.edu
Organization: University of California, San Diego


In article <1992Dec29.142004.1032@cmkrnl.com>, jeh@cmkrnl.com writes:
|> In article <1hoclrINN1s0@network.ucsd.edu>, simon@ivem.ucsd.edu (Simon Lee) writes:
|> > In article <Bzs8nv.AI1@acsu.buffalo.edu> kist@acsu.buffalo.edu (james e kist) writes:
|> > I think it didn't catch on because it was another format.  
|> 
|> I don't think this was the only issue.  Remember that VHS came in after Beta
|> and all but killed it, even though VHS was an incompatible format, mostly
|> because people were more interested in longer recording times than in higher
|> quality video and smaller cassettes.  Remember that 8mm camcorders are clearly
|> winning over VHS and VHS-C models, even though 8mm can't be played directly in
|> the typical home VCR. 
|> 
|> I think that DAT has failed to catch on in the consumer market because most
|> people simply don't need it -- and the decks are priced high enough to
|> discourage most of those who don't need it.  If DAT decks had been available
|> for, oh, the price of a good cassette deck, say $300 or so, it would have made
|> a much better showing.  


I think there's another factor that hasn't been addressed yet.  The recording
industry was against DAT and you never saw any pre-recorded DAT tapes.
However, the Tower Records in Los Altos has a bunch of pre-recorded DCC tapes
for sale.  I think DCC hasn't met with nearly as much opposition.
What also helps is that both DCC and MD have protection circuitry to prevent
more than one generation of copying through the digital channel.  Given
the lossy compression scheme, I doubt anything beyond the 1st generation
will sound that great via the analog channel.
Also, the fact that it is downward compatible (i.e. you can record and
playback your regular cassettes) gives it another advantage over DAT.

DCC and MD players/recorders are also coming out at a cheaper starting price.
DCC was supposed to start at under $500, but of Philipps, Technics and Tandy,
the Radio Shack is cheapest at $799.  I saw the MD unit for $699 at Fry's.

I don't want to sound like a DCC/MD fanatic, so the downside is that we 
are still recovering from a recession and who knows if people will see
the need for yet another format (it seems like yesterday that DAT came out
and very recent that CD hit it big)

-- 
Dennis Lou             || "But Yossarian, what if everyone thought that way?"
dlou@ucsd.edu          || "Then I'd be crazy to think any other way!"
[backbone]!ucsd!dlou   |+====================================================
dlou@ucsd.BITNET       |Steve Jobs and Steve Wozniak went to my high school.
-- 
Dennis Lou             || "But Yossarian, what if everyone thought that way?"
dlou@ucsd.edu          || "Then I'd be crazy to think any other way!"
[backbone]!ucsd!dlou   |+====================================================
dlou@ucsd.BITNET       |Steve Jobs and Steve Wozniak went to my high school.
Newsgroups: rec.audio.car
From: demaine@ee.ualberta.ca (Cal Demaine)
Subject: Re: dB, volts vs. watts (was Re: Why so much power?
Organization: University Of Alberta, Edmonton Canada
Date: Fri, 1 Jan 1993 23:01:33 GMT

Now, nobody flame me too bad if I'm wrong, but I believe I know the reason
for units like dBV and dB SPL.  (And there are more that I forget.)

dBV is referenced to some voltage I can't remember, and any dBV ratios
represent the ratio of the signal to the reference signal.  If you don't
know the reference signal, dBV means NOTHING.

Same with dB SPL.  You need to know what the 0dB point refers to.

Otherwise, dB represents a gain or attenuation, as with amplifiers.

Why all this confusion?
  - Cal

-- 
--------------------------------------------------------------------------------
  - Cal Demaine                   | "You shot him in the back!"                 
    (demaine@bode.ee.ualberta.ca) |    "His back was to me!"  - El Diablo    
--------------------------------------------------------------------------------
Newsgroups: rec.audio.car
From: eddys@citrus.SAC.CA.US ( Steve Eddy )
Subject: Re: Why so much power?
Organization: Citrus Grove Public Access ( 916 ) 381-5822    Sacramento CA.  USA
Date: Wed, 23 Dec 1992 17:01:50 GMT
X-Newsreader: Tin 1.1 PL4

ajones@dadd.ti.com (Alan Jones) writes:
: I'm sure this is a FAQ, but I'll ask it anyway.  I asked this question to a
: salesman at a car audio store, and wasn't impressed by the answer he gave me.
: 
: Anyway, why do cars require so much power to produce quality music?  Most good
: systems seem to include hundreds of watts of amplifier power.  My home system
: has only 45 watts, and it's so loud I never turn it up past 50%.  The area
: inside a car is so small - I'd expect that you wouldn't need much power to fill
: it with quality music.  What's the deal?
: 
: By the way, where can I find the FAQ?  I've been patiently waiting for it to
: be posted but I haven't seen it.
: 
: ADVthanxANCE!
: 
: ---
: sincerely,
: Alan Jones  /  Texas Instruments, Dallas, TX  /  email=ajones@tiasic.csc.ti.com
: 
 
   The reason cars "require so much power" is that with more power, the
greater vibrations looten and free up more testosterone from the owner's
testicles. You see, car audio is really a visceral thing...

se

-- 

# Where no man has gone before.                   eddys@citrus.SAC.CA.US
#   *default* .sig file                      csusac.ecs.csus.edu!citrus!eddys
# The undiscovered land.                                   /\../\
Newsgroups: rec.audio.car
From: "glen mead" <glen.mead@canrem.com>
Subject: perfectbox, ftp & md
Reply-To: "glen mead" <glen.mead@canrem.com>
Organization: Canada Remote Systems
Distribution: rec
Date: 23 Dec 92 20:30:19 EST

JR>Host:     cyber.Widener.EDU
JR>User:     anonymous
JR>Password: guest
JR>Dir:      rec_audio_car
JR>File:     perf_zip

I'd like to obtain this file myself but unfortunately I don't have FTP
access via this system.  I'd like to obtain access to a local pubnet which
has FTP access but I'm having a heck of a time finding one.  Does anybody
on here subscribe to the pubnet mailing list (pubnet-request@chinacat.
unicom.com)?  If so, could somebody look up a location local to me or
submit a subscribe request for me?  For some reason, my subscription
requests don't seem to be getting through.

Also, does anybody know of a release date for MD players for the car?  I
was listening to a Sony MD walkman today and it sounded terrific.

Glen Mead - RZ/RD 500 Owners Group
---
 * Amiga-Reader V2.00B * 
--
Canada Remote Systems  - Toronto, Ontario
World's Largest PCBOARD System - 416-629-7000/629-7044
Newsgroups: rec.audio.car
From: demaine@ee.ualberta.ca (Cal Demaine)
Subject: Re: subwoofers/boxes
Organization: University Of Alberta, Edmonton Canada
Date: Wed, 30 Dec 1992 09:31:10 GMT

bstdenis@mailbox.fwrdc.rtsg.mot.com (Brian St. Denis) writes:

>There is no competition, the Petrus is way better, way lower, way cleaner,
>even louder.  My MTX even grounds out once in a while the Prowler woofer did
>not even though it was producing much more bass.

>My question is can the difference in woofers make such a huge difference?

You betcha.  There are many important factors which can differ between
drivers, and many ways that a company can 'skimp' in making the units.
Price _sometimes_ says a lot, as does the manufacturer.

>Or, could it be that my box isn't right (ie can .1 cu. inches be a problem
>or could MTX have specified a bad box)?  My dealer also sold Alpine and
>another type of woofer and suggested the MTX for me.

It has been commonly held that a box's volume can vary by as much as 10%
without serious effects to response.  When you throw in the variability
due to port volume, driver volume, and interior support volume, things
really go out the door.

By the by, your dealer is certainly not required to steer you towards a
good driver.  They may have decided that you look like you 'couldn't
afford' or 'wouldn't appreciate' the other units, or that they would
make better money or a faster sale off the MTX.

>According to the response from this, I will either have to get a different
>woofer, a different box or both.

First, before going to tons of trouble, try stuffing your box with polyester
fill and see what you think.  If the problem persists (ie: you're still not
happy) look into getting a new box AND driver.  Talk to the installers, not
the salesguys.  The installer has listened to _every_ vehicle he worked on -
the salesguy has listened to maybe 1 in 20 of the systems he sells.

Besides that, you may want to check the tuning of your box to make sure that
it is up to spec.

Anyway, good luck, and keep in touch.  I am full of useless, opinionated
advice which I enjoy spewing at any chance.

   - Cal

PS:  To the gentleman at Apple who spoke so highly of me to the staff of
SoftwareHouse:  You think I'm obnoxious now?  You should see me in person! :)

-- 
--------------------------------------------------------------------------------
  - Cal Demaine                   | "You shot him in the back!"                 
    (demaine@bode.ee.ualberta.ca) |    "His back was to me!"  - El Diablo    
--------------------------------------------------------------------------------
Newsgroups: rec.audio.car
From: "glen mead" <glen.mead@canrem.com>
Subject: dcc
Reply-To: "glen mead" <glen.mead@canrem.com>
Organization: Canada Remote Systems
Distribution: rec
Date: 25 Dec 92 13:16:10 EST

kist@acsu.buffalo.edu (james e kist) writes:

JE>Could somebody tell me exactly how Digitally Coded Cassettes differ from
JE>DAT? I mean, since DAT has failed, how can any manufacturer possibly thi
JE>that they're going to get anywhere with this format?

First, I wouldn't say DAT has died...it's just not finding a wide spread
use in the consumer market.  I know of several people using them in
professional applications...those same people would never use DCC.  The
differences as far as I can tell (I'm no specialist) are:

DCC uses a compression scheme (lossy?) while DAT info is uncompressed
(lossless?).
DCC does not allow sub tracks for time codes and such while DAT does.
DCC plays analog cassettes as well as DCC format but from what I've heard,
the DCC deck does a very poor job of playing back analog cassettes.
DAT plays DAT cassettes only.

This is my understanding of them at least.  Of course now we have MD
(Mini Disk) to confuse things even more.  I had a chance to check out an
MD walkman a couple of days ago and it was terrific.  I'm hoping that an
automotive version will be available soon.

Glen Mead - RZ/RD 500 Owners Group
---
 * Amiga-Reader V2.00B * 
--
Canada Remote Systems  - Toronto, Ontario
World's Largest PCBOARD System - 416-629-7000/629-7044
From: gppeter@sgi8.sdrc.com (Peter Bennett)
Newsgroups: rec.audio.car
Subject: CD player in Mazda
Keywords: CD
Date: 3 Jan 93 04:58:17 GMT

Hey, here's a question for you installation-parts-and-stuff pros:

I'm getting a new Mazda MX6 soon, and I'm considering my options for CD.
Mazda offers both a dash mount CD, seperate from the AM/FMcassette unit, and
a trunk mounted changder.  I haven't checked on the price of the changer,
cause Iknow it's astronomical.  The dash unit is 680 bucks.  I looked in
a 929, with the changer installed, and could tell that the equipment is Pioneer.

What I'm wondering is: Is there a connector on the radio to which the CD
source is connected to, so that it switches to CD whenever one is inserted,
or the conrtrol on the changer is activated?  Can a stereo installer get
this kind of connector so that I could get an aftermarket changer, but have
it connected the same as the factory unit?
The radio-cassettte is not a controller, so there would be a control plate.

Thought I should check here before I call around.

Thanks,
Peter

P.S. Please email responses.
Newsgroups: rec.audio.car
From: kchau@fraser.sfu.ca (Kwok Kwong Albert Chau)
Subject: Rattles
Organization: Simon Fraser University, Burnaby, B.C., Canada
Distribution: na
Date: Thu, 31 Dec 1992 03:54:42 GMT

Anybody know of a good way to eliminate rattles from panels in the 
passenger compartment?  Even with the screws good & tight, I get a 
most annoying rattle from certain panels in the dash area.  I would
think that there's plasticine type material for this purpose.  The 
questions are what's it called, where can i get it, & how much $$.

Thanx, for the help.

Albert Chau (achau@mprgate.mpr.ca)
Newsgroups: rec.audio.car
Newsgroups: rec.audio.car
From: ldormon@uk.oracle.com
Subject: Re: Isobarik subwoofer design
Reply-To: ldormon@uk.oracle.com
Organization: Oracle Corp
Date: Thu, 31 Dec 1992 10:09:44 GMT
X-Disclaimer: This message was written by an unauthenticated user
              at Oracle Corporation.  The opinions expressed are those
              of the user and not necessarily those of Oracle.


Err just one question about isobarik designs, if you have the drivers
one behind the other (ie NOT firing into one another), how do you know
what the volume of the tunnel should be, or do you just put them as
close together as possible. 

Cheers 
Lee

ldormon@uk.oracle.com
Newsgroups: rec.audio.car
From: demaine@ee.ualberta.ca (Cal Demaine)
Subject: Re: Turing on radio creates buzz ?
Organization: University Of Alberta, Edmonton Canada
Distribution: usa
Date: Fri, 1 Jan 1993 23:08:10 GMT

swu@att.com (Chi-Sharn Wu) writes:

>After I installed a CD changer to my Maximum GXE 92 last week, I just 
>noticed that depressing the accelerator pedal will create little  high-frequency buzz if I turned on the radio or CD changer.
>I don't know where it comes from.

Well, does the unit use one of those totally worthless FM Modulators which
injects the CD audio signal to 88.3 or 88.7 MHz FM?

If so, you likely have a power supply or grounding problem with the crappy
little modulator box that attaches in-line with your antenna.

Sorry about my bitterness, but I've too much experience with those units.
   - Cal

-- 
--------------------------------------------------------------------------------
  - Cal Demaine                   | "You shot him in the back!"                 
    (demaine@bode.ee.ualberta.ca) |    "His back was to me!"  - El Diablo    
--------------------------------------------------------------------------------
From: system@hale.cts.com (System Administration)
Newsgroups: rec.audio.car
Subject: Re: Delayed Remote Turn-on Output Terminal
Date: 31 Dec 92 09:36:14 GMT
Organization: Hale Telecommunications Inc.

keys@starchild.ncsl.nist.gov (Lawrence B. Keys) writes:

> Hi All,
> 
> I recently bought a Pheonix Gold AX-406A Electronic Crossover and
> i have a question about one of its features.
> 
> The instructions say "Connect to all other signal processors
> remote turn-on input terminal.  This connection delays the turn-on/off
> of connected components.  This delay helps eliminate on/off thump
> caused by brand incompatibility."
> 
> My questions are:
> 
> Is this feature something that is normally found on a crossover? Should
> i use it?  If i do use it, what would be the procedure for connecting
> more than one amp (specifically two)?


Well, it's not exactly a standard feature, but it should be usable
and I'd go ahead and use it.

All I'd worry about is drawing too much current through this turn on
lead, but with just two amplifiers it shouldn't stress it out.

Just join the two turn on leads from the amplifiers to the delay output 
on the crossover.  DO NOT connect the main power leads on the amplifiers
to the delay turn on, you'll smell your crossover.

You can switch large currents with the addition of a high amp relay
from an autoparts store (would be wise of switching on the amps,
crossovers, power antennas, etc with one lead.)

Q: Does the crossover click a few seconds after power-up?  Just wonder-
   ing if the delay switching is solid state or if there's a relay
   in there.  

You might want to check it after your all set up, run the system at 
moderate volume for a bit and see if the crossover heats up 
significantly.
From: jrp@netman.Berkeley.EDU (Joshua R. Poulson)
Newsgroups: rec.audio.car
Subject: Re: Where is PerfectBox? - 2nd try
Date: 22 Dec 92 00:17:08 GMT
Reply-To: Joshua.R.Poulson@cyber.Widener.EDU
Organization: Widener University Dept. of Computing Services
NNTP-Posting-Host: netman.widener.edu

In article <1992Dec21.221949.24540@ntmtv>, blasjw@ntmtv.UUCP (Joseph Blas) writes:
|> This is my second attempt in trying to locate PerfectBox which is a
|> speaker design program.  Could someone please tell me an ftp site
|> where I can find it.  I don't relly know how to use archie so that's
|> no help.  BTW this program is shareware.

Try:

Host:     cyber.Widener.EDU
User:     anonymous
Password: guest
Dir:      rec_audio_car
File:     perf_zip

Make sure:

  1)  Please use FTP. You can't telnet to this account.

  2)  Transfer the file in "image" or "binary" mode.

  3)  Try to avoid using my machine during peak hours. It does get used.

Thanks!

-- 
Joshua R. Poulson, Systems Programmer, Computing Services, Widener University
jrp@cyber.Widener.EDU, jrp@netman.Widener.EDU, poulson@cs.Widener.EDU, et al.
From: adammot@ltrnativ.UUCP (Adam Mottershead)
Newsgroups: rec.audio.car
Subject: Amp Wiring - HELP!
Date: Sun, 27 Dec 92 20:08:25 EST
News-Software: FSUUCP 1.2 R4
X-Mailer: DigiQR 5.38b
Reply-To: adammot@ltrnativ.UUCP (Adam Mottershead)
Distribution: world
Organization: The All Ter Nah Tive Un Der Groend

Well, I have finally decided to bite the bullet and purchase a big
amp (atleast by my standards).  It is an Alpine 3550, that I got on
special at a Boxing Day sale.

Currently in my car (a Mustang LX Sedan) I have an Alpine 3503 small
tinker-toy amp.  This amp having such a low current draw, is hooked
in with the wire powering the deck.  This amp will remain where it is to
power my tweeters and mids.

Now, the 3550 is going to be installed in my trunk to power my 8" Sony
triaxials and my yet to be installed subwoofer.  So I must face the
inevitable task of bringing power to the amp.

What I need to know is what I will need to wire the amp directly to the
battery, as in terms of wiring, fuses, distribution blocks, etc.  If I recall
correctly the 3550 pulls at maximum around 25-35 Amperes of power.  It will
be the only amp running off of this connection, however I may want to move
the small Alpine into the trunk or add another amp at a later time.

My second question regards the actual physical routing of this wiring.  Do I
have to go right through the firewall with these power cables or can I take
an alternate route?

I once read an article in Mustang Monthly where they installed a Nitrous Oxide
System in the exact model car as mine.  What they did was install the nitrous
bottle in the trunk and put the hose through a hole in the trunk floor.  The
hose was then snaked through the UniBody construction (not outside of the
car, but not through the interior either).  Eventually the hose popped out
of a little hole just ahead of the door hinge and was brought up into the
engine compartment.

Has anybody heard of this being done for car audio?  If not, is it feasible
and safe?







--
Adam Mottershead                      |
39 Havelock Drive                     |        adammot@ltrnativ.UUCP
Brampton, Ontario                     |                 or     
Canada, L6W 4K8                       | adammot%ltrnativ.UUCP@uunet.uu.net
+1 416 454 8597                       |
                                                                            --
Newsgroups: rec.audio.car
From: ofer@CS.Stanford.EDU (Ofer Matan)
Subject: Weird cassette player behaviour.
Organization: Computer Science Department, Stanford University.
Date: Thu, 24 Dec 1992 23:21:57 GMT

Have had this problem for a while. Maybe someone out there knows something
about it. 

My cassette player is a generic one that came with my Honda. 
From time to time when I stick the cassette it does not play. The mechanism
for bringing the casssete down onto the head works. The light indicating
forward motion does not come on. This has been happening for a couple of
years very infrequently (every few months) and if I would push the Fast 
forward or fast rewind to the end of the tape, after a while I would hear a 
CLICK and the tape would start playing.
Lately this problem has become worse. FF/FR still work, but 
the tape does not start playing for days. 

When this happens the eject does not work, that is I need to get the tape 
to play in order to eject it (sort of a catch 22 situation - if it worked
i wouldn't want to eject it). The worst part of it is the radio does 
not work when a tape is inside (that is a feature not
a bug -- Thanx to whoever deigned this).

So a few weeks ago I had the tape stuck in there for over a week 
and then suddenly one day it started playing. I managed to eject the 
tape, but have not dared to put another cassette in 
that gobbling machine.

I welcome anyone you has any theories, conjectures, suggestions (apart from 
trashing the player) to write.


****************************************************************************
* Ofer Matan					  ofer@cs.stanford.edu     *
* Department of Computer Science                  (415) 723-3227           *
* Stanford University				                           *
* Stanford, CA 94305                                                       *
****************************************************************************
*  "All roads lead to Rome for d<=2"        *
*                                           *
*  "All roads roam to Leeds"                *
*********************************************
From: kirk@hpcc01.corp.hp.com (Kirk Lindstrom)
Date: Sun, 27 Dec 1992 20:32:16 GMT
Subject: Re: dB, volts vs. watts (was Re: Why so much power?
Organization: Shredding the water of SF Bay, HP-OCD
From: bhostetl@silver.ucs.indiana.edu (Brian Hostetler)
Subject: Temperature in car CD player
Organization: Indiana University
Distribution: rec.audio.car
Date: Thu, 31 Dec 1992 16:36:43 GMT

	When I pull my CDs out of my Pioneer after a few songs, 
they are incredibly hot.  Have there been any studies on whether 
this is detrimental to the CD?  Or if it is possible to melt 
the ink on the label of the disc?

-- 
-brian

bhostetl@ucs.indiana.edu          |      "Even if the brain is removed,
bhostetl@silver.ucs.indiana.edu   |     the insekt continues to live..."
Organization: University of Central Florida--Computer Services
Date: Sunday, 20 Dec 1992 12:56:27 EST
From: Stanley Tong <STONG@UCF1VM.BITNET>
Newsgroups: rec.audio.car
Subject: Pioneer:Cassete/CD-contr. + equalizer

I am posting this for a friend who does not have access to NetNews...

For Sale:  PIONEER
    KEX-M800  Component Multi-CD Control Full Logic Cassette Deck
              with Detachable Face Security

           Some features:
                 quartz Super-Tuner III
                 Multi-play CD Controller: 32 track/16 magazine
                 18FM/6AM Presets
                 2 Acoustic Memories (Bass/Mid/Treble)
                 Electronic Pre-amp Fader
                 Dolby B/C
                 Detachable Face Plate
                 *** WIRELESS Remote Control ***
                 and lots more....

       ASKING $425 (obo)......  COD or pre-paid only, shipping nogotiable


   ALSO FOR SALE:
           Pioneer 9-Band Graphic Equalizer
              with Post-EQ Crossover Network and Subwoofer Output
           EQ-6500
                * 1/2 DIN-size chasis
                * Subwoofer on/off switch
                * Dual illumination
                * Built in dual amp balancer
                * New High performance Balanced Isolator Circuit
                and more....

        ASKING  $225 (obo) ....  COD or Prepaid only



   OR you can buy both for $625


Please respond E-Mail to me at   stong@ucf1vm.cc.ucf.edu
      or
   by phone to Mike (seller) at (407)275-0086

Newsgroups: rec.audio.car