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Sound Survey

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Geezer - 01 Oct 2006 01:31 GMT
Ok, I admit it right off - I'm an old analog DC block control curmudgeon.
Over the last few years I have acquired a couple Broadway Limited models of
long desired steam prototypes, and I admit to being impressed with the DC
analog mode sound and I am guilty of showing it off to visitors.  I am in a
couple operating groups, and at the op sessions on the DCC layouts, I find
the sound is always either turned way down or turned off completely.  With
both hands full of a timetable, waybills, a controller, and a coupler pick,
I find turning on bells and blowing whistles just doesn't make it to my
priority list, and too much chuffing just makes it harder to hear the
dispatcher on the radio.

In spite of this a friend recently loaned me a Digitrax Super Chief set so I
could render an opinion on his new sound equipped articulated.  It's been
fun to run it and play with the sounds, but I find the novelty wears off,
and wears off much more quickly when I run two sound equipped locos at the
same time.

With that intro, I'm curious.  Those of you who have DCC equipped layouts
and sound equipped units:
a) how many run the sound all the time?
2) how many just run sound for visitors?
c) how many run the sound when you run trains solo?
4) how many run the sound during op sessions?
(Yes, I'm hooked on Car Talk.)
Thanks in advance, Geezer
stephen.magee@gmail.com - 01 Oct 2006 03:43 GMT
etc etc

> With that intro, I'm curious.  Those of you who have DCC equipped layouts
> and sound equipped units:
[quoted text clipped - 4 lines]
> (Yes, I'm hooked on Car Talk.)
> Thanks in advance, Geezer

You left off a few very important ones :

How many turn their volumes down to a level you would expect to hear
from the prototype, at the distances we have in our various scales?

And: How many turn the sound down as their number of sound equipped
locos increase?

If you include these two, put me down for all the time and yes to my
two additions.

Steve Magee
Newcastle NSW Aust
Alan Gilchrist - 01 Oct 2006 14:41 GMT
> I find
> the sound is always either turned way down or turned off completely.  With
> both hands full of a timetable, waybills, a controller, and a coupler pick,
> I find turning on bells and blowing whistles just doesn't make it to my
> priority list, and too much chuffing just makes it harder to hear the
> dispatcher on the radio.

 I understand from hearing from others that more than 1 or 2 sound
equipped locos in an area can be annoying.

> With that intro, I'm curious.  Those of you who have DCC equipped layouts
> and sound equipped units:
> a) how many run the sound all the time?
> 2) how many just run sound for visitors?
> c) how many run the sound when you run trains solo?
> 4) how many run the sound during op sessions?

 I currently don't have any sound equipped units to speak of, and I
think cost is a factor, a engine equipped with sound is $ 60 to $100
more than the same unit without sound, and a sound decoder is more
expensive than a regular decoder, look at the sound decoder in the
latest issue of PMR (PMR = Popular Model Railroader) and note the price
of $ 99.95, that's about 3 times the price of a standard DCC decoder.

Alan
Roger T. - 01 Oct 2006 15:58 GMT
No matter what the magazine's try to tell you, every sound system I have
heard sucks.

How on earth can you get a full range if sounds from a one inch speaker?

Impossible!

Nobody will convince me that a 1 inch speaker gives the same sound as the
combination 12 inch speaker (s) and a large sub-woofer does.

People who have sound equipped locos will now write and say how wrong I am.
I guess they're satisfied with tinny sound, not me.

--
Cheers

Roger T.

Home of the Great Eastern Railway
http://www.highspeedplus.com/~rogertra/
Paul Newhouse - 01 Oct 2006 17:20 GMT
n article <7bb7863759f2ecc733ead98e3ec0b0c7@grapevine.islandnet.com>,
> No matter what the magazine's try to tell you, every sound system I have
> heard sucks.
>
> How on earth can you get a full range if sounds from a one inch speaker?

You don't BUT, it's good enough for many.

I personally am not impressed with much of the diesel sound.  I like
the rest, brake squeal, horn, bell, air ...

> Impossible!
>
> Nobody will convince me that a 1 inch speaker gives the same sound as the
> combination 12 inch speaker (s) and a large sub-woofer does.

DUH!!

> People who have sound equipped locos will now write and say how wrong I am.
> I guess they're satisfied with tinny sound, not me.

It gets tinny as you up the volume ... so don't do that *8^)

Paul
Alan Gilchrist - 01 Oct 2006 23:04 GMT
> How on earth can you get a full range if sounds from a one inch speaker?

 You can't...

> Nobody will convince me that a 1 inch speaker gives the same sound as the
> combination 12 inch speaker (s) and a large sub-woofer does.
>
> People who have sound equipped locos will now write and say how wrong I am.
> I guess they're satisfied with tinny sound, not me.

 I'd prefer a sound equipped layout over a sound equipped loco, and
with the advent of location capabilties in todays DCC systems, I'd
rather have several 6" or so speaker systems placed around the layout
and have the sound follow the loco.

Alan
---
__________________________________________________________
/                                                          \
|  What: Modeling Canadian Pacific in B.C. in the late 50's |
|  EMail: rag1957 at rogers dot com                         |
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Edward A. Oates - 01 Oct 2006 23:37 GMT
>> How on earth can you get a full range if sounds from a one inch speaker?
>
[quoted text clipped - 19 lines]
> |  Web Gallery:http://www.pbase.com/cprfan                  |
> \__________________________________________________________/

Just to confirm Roger T: physics says you are not getting any bass
frequencies (below about 300HZ from a 1" speaker, regardless of the baffle:
you just can't push enough air.

If once could send the output of a 12 bit or more sound decoder to the 1"
(or so) on board speaker and to an external system, you could set the
external up as a subwoofer with a low pass only filter set at about 100hz.
You could (or should?) even us a mixer to combine the low frequencies from
ALL of the running decoders.

Frequencies below about 100 Hz or so are omnidirectional (wavelength is a
foot or so or longer) so using a single subwoofer placed under the layout
would give the whole thing some body.

But you would still miss low midrange (100 to 500hz or so) with the 1"
speaker. I don't think that would be a serious problem given that one would
likely keep the individual loco volumes low except for show-off purposes.

The original questioner had a valid series of questions, and my answers are:

0) Yes, adjust everything pretty low: you just want a hint of sound, imhyco
A) no
2) always for visitors, but not just then
C) yes
4) N/A

Signature

Ed Oates
http://homepage.mac.com/edoates
DCC wiring information is at http://www.wiringfordcc.com

Jeff Hensley - 02 Oct 2006 01:02 GMT
On 10/1/06 10:58 AM, in article
7bb7863759f2ecc733ead98e3ec0b0c7@grapevine.islandnet.com, "Roger T."
<rogertra@highspeedplus.com> wrote:

> No matter what the magazine's try to tell you, every sound system I have
> heard sucks.
[quoted text clipped - 16 lines]
> Home of the Great Eastern Railway
> http://www.highspeedplus.com/~rogertra/

True. But, the only way to make it sound like the real thing is to have the
real thing in you train room 8^). Keep in mind that these are miniatures and
no matter how hard you try, it will not ever sound, or feel like the
locomotive you are trying to emulate. Even 12" speaker won't do it complete
justice. Close, but still not completely the same. Now if you could rig up a
vibration system in the floor to go along with a humongous speaker system,
and the neighbors won't complain, then you might have something to thrill
the mind and quicken the heart.
Mark Mathu - 18 Oct 2006 06:50 GMT
> People who have sound equipped locos will now write and say how wrong I
> am.
> I guess they're satisfied with tinny sound, not me.

What do you do for sound on your layout?
Roger T. - 18 Oct 2006 07:34 GMT
"Mark Mathu"

>> People who have sound equipped locos will now write and say how wrong I
>> am.
>> I guess they're satisfied with tinny sound, not me.
>
> What do you do for sound on your layout?

I don't have sound and won't, until it sounds realistic.  No matter what
people say, sound systems in model locos sound too tinny and unrealistic and
are, in my opinion, not worth the expense.

--
Cheers

Roger T.

Home of the Great Eastern Railway
http://www.highspeedplus.com/~rogertra/
EDM - 18 Oct 2006 09:24 GMT
> "Mark Mathu"
>
[quoted text clipped - 7 lines]
> people say, sound systems in model locos sound too tinny and unrealistic and
> are, in my opinion, not worth the expense.

Not sure what scale you're talking about, but the whistle, bell
and chuff on my roommate's O-scale Lionel 2-8-2 Mikados
(6-18079 and 6-18080 from Lionel's 1999 Heritage Catalog)
are, from a distance of 30 feet or so, indistinguishable from the
real thing.
Alan Gilchrist - 18 Oct 2006 20:45 GMT
> Not sure what scale you're talking about, but the whistle, bell
> and chuff on my roommate's O-scale Lionel 2-8-2 Mikados
> (6-18079 and 6-18080 from Lionel's 1999 Heritage Catalog)
> are, from a distance of 30 feet or so, indistinguishable from the
> real thing.

 The tender on an O scale loco is large enough to hold a large size
speaker which can and does sound much better than one of those tiny one
inchers you find in an HO engine.

 One inch speakers don't whistle, they tweet....

Alan
---
_______________________________________________
/
           \
|  What: Modeling Canadian Pacific in B.C. in the late 50's |
|  EMail: rag1957 at rogers dot com                                  |
|  Web Gallery:http://www.pbase.com/cprfan                     |
\_______________________________________________/
Geezer - 18 Oct 2006 12:49 GMT
>> What do you do for sound on your layout?
> (snip)
> I don't have sound and won't, until it sounds realistic. Cheers  - Roger
> T.

Just curious - are you also foregoing trees, spikes, water, rail joints,
couplers, etc. etc. on your layout until they also are realistic?? :-)
Geezer
Joe Ellis - 19 Oct 2006 00:07 GMT
> >> What do you do for sound on your layout?
> > (snip)
[quoted text clipped - 4 lines]
> couplers, etc. etc. on your layout until they also are realistic?? :-)
> Geezer

Reasonable approximations of trees, spikes, rail joints, and couplers
already exist. They are essentially static objects, so only a
representation of the physical form is necessary, and that form does not
change moment to moment.

However, water doesn't scale for the same reason sound doesn't... the
characteristics and dynamic behavior of the molecules involved cannot be
scaled. The form to be modeled changes many times a second in both
cases. Unless and until there is a quantum breakthrough in speaker
technology, sound from the small speakers possible in smaller scales
_cannot_ produce an accurate frequency spectrum for trains. It's a
simple physical impossibility. Ask any audio engineer about reproducing
low frequency sound with a speaker the size of a quarter... or a dime.
They'll laugh at you.

Physics Does Not Scale.

Signature

Evaluating all GUIs by the example of Windows is like evaluating all cars
by the example of Yugos.

Mark Mathu - 26 Oct 2006 08:05 GMT
> Physics Does Not Scale.

So you can't move your trains?
Puckdropper - 26 Oct 2006 08:43 GMT
"Mark Mathu" <mark@mathu.com> wrote in news:%6Z%g.36522$cc3.30783
@tornado.rdc-kc.rr.com:

>> Physics Does Not Scale.
>
> So you can't move your trains?

All that means is it's a lot easier to go locomotive tipping (it's easy,
just go up to it and push) on a model railroad than it is a real
railroad!

;-)

Puckdropper
Signature

Wise is the man who attempts to answer his question before asking it.

To email me directly, send a message to puckdropper (at) fastmail.fm

Mark Mathu - 26 Oct 2006 10:43 GMT
>>> Physics Does Not Scale.
>>
[quoted text clipped - 3 lines]
> just go up to it and push) on a model railroad than it is a real
> railroad!

We've all needed to use the "five-fingered locomotive" (0-5-0) to move cars
once in a while!
Roger T. - 26 Oct 2006 09:40 GMT
"Mark Mathu"

>> Physics Does Not Scale.
>
> So you can't move your trains?

Some people just try to be obtuse.

He's right, physics does not scale,  as in friction and mass, both of which
are to do with physics.

--
Cheers

Roger T.

Home of the Great Eastern Railway
http://www.highspeedplus.com/~rogertra/
Joe Ellis - 26 Oct 2006 12:05 GMT
> > Physics Does Not Scale.
>
> So you can't move your trains?

Of course I can, ninny.

But they move according to the physics of the 1:1 world.

Signature

Evaluating all GUIs by the example of Windows is like evaluating all cars
by the example of Yugos.

KDKA - 28 Oct 2006 07:03 GMT
So, you're saying the sound of a whiny little electric motor on a 4-8-4 and
with silent whistles and bells at grade crossings etc.  is more realistic
and preferable to current sound systems?
Not to my ears!
Ken

> "Mark Mathu"
>
[quoted text clipped - 16 lines]
> Home of the Great Eastern Railway
> http://www.highspeedplus.com/~rogertra/
Bruce Favinger - 19 Oct 2006 06:21 GMT
I have a wooden train whistle, make chuffing sounds, use two ice cubes in a
glass for coupler clank and stomp on the cats tail for wheel squeal. The
only problem is the cat runs off right after activating the squeal sound
feature. Sound is kind of fun. Right now I have one locomotive with a sound
decoder and enjoy it. More than engine sounds and other noise features I
like the idea of using the bell and horn or whistle appropriately. Bruce

>> People who have sound equipped locos will now write and say how wrong I
>> am.
>> I guess they're satisfied with tinny sound, not me.
>
> What do you do for sound on your layout?
Edward A. Oates - 19 Oct 2006 17:17 GMT
> I have a wooden train whistle, make chuffing sounds, use two ice cubes in a
> glass for coupler clank and stomp on the cats tail for wheel squeal. The
[quoted text clipped - 8 lines]
>>
>> What do you do for sound on your layout?

The main problem I have with sound (other than lack of fidelity due to 1" or
less speaker sizes), is that if you have more than one sound equipped loco
running at a time, you get cacophony: chuffing, churning diesels, etc. all
over the place. Unless you are in a real "yard," one rarely hears more than
one loco at equal volume. Train rooms in the home are generally smallish, so
the loco's ore more or less equidistant and are all about the same volume.

If I am running more than one sound loco, I turn the loco motor and other
continuous sounds OFF, and use the whistles, horns, bells, and maybe coupler
sounds as needed. Except for young visitors who really, really like the
chuff sounds of steam loco's, such reduction of the overall continuous noise
satisfies my need for minor additional realism and fun. (everyone likes to
blow the whistle!)

Signature

Ed Oates
http://homepage.mac.com/edoates
DCC wiring information is at http://www.wiringfordcc.com

Mark Mathu - 26 Oct 2006 08:00 GMT
> If I am running more than one sound loco, I turn the loco motor and other
> continuous sounds OFF, and use the whistles, horns, bells, and maybe
[quoted text clipped - 4 lines]
> satisfies my need for minor additional realism and fun. (everyone likes to
> blow the whistle!)

I don't have sound on my layout, but had the chance to operate on a fellow
modeler's walkaround layout last Saturday, where he had several locos with
sound.  (We had about a dozen operators running about 30 staged trains or so
on a fast clock).  Several trains operated with sound, including me having a
couple of GE thingamobobbies (don't ask which... I'm a 60's modeler and they
sure weren't U-boats) on the head of one of my trains.

I encountered several other sound trains during the session, and the
experience was pleasurable.  The owner kept the sound volume down to where
it didn't overpower the layout  -- you certainly couldn't hear other locos
when they were on the far end of the layout.

No doubt the sound was "tinny" compared to the prototype, as Roger is apt to
say.  But guess what?  The momentum effects of switching cars weren't the
same as the prototype, and the 3:1 fast clock wasn't the same as real time,
and when I had to follow a sulfur train through the division yard it didn't
smell like the prototype, and the RSD-15s I passed (yeah... I know *those*
engines) didn't smoke like the prototype, and the dispatchers orders coming
through the headset weren't entirely up to prototype standards, and the
unpainted loco on the branch line didn't look very prototypical, and the
bare plywood at the paper mill wasn't convincing, and we used car cards
instead of full prototypical paperwork....

But the sound was an enjoyable addition to the overall effect, and it _was_
nice to hear the growl of another set of engines as you passed them at a
siding.  And it was intriguing to hear the quiet rumble of a train in the
distance as you headed around the curve at the end of a scenery divider...
indicating that you were going to encounter _something_, but known only to
the other train operator, the dispatcher, and God.  (Oh, sometimes that last
two entities can get interchanged during an operating session!!!)

And you're right... I blew the whistle more than was necessary.  Especially
when I first took control of the sound equipped consist.

__________
Mark Mathu
The Green Bay Route: http://www.greenbayroute.com/
"I started out with nothing and I still have most of it."
Roger T. - 26 Oct 2006 09:49 GMT
"Mark Mathu"

> No doubt the sound was "tinny" compared to the prototype, as Roger is apt
> to say.

I am?  Oh yes, I am!  It does sound like a 1960s transistor radio.

However,  that doesn't mean you shouldn't use sound if you like it.

It's like smoke units, Lionel Tinplate, roundy-go-roundy, Thomas, mixing
eras, etc., etc.

If it makes you happy, each to his own as in all things.

--
Cheers

Roger T.

Home of the Great Eastern Railway
http://www.highspeedplus.com/~rogertra/
Geezer - 28 Oct 2006 13:40 GMT
(snipped)
> How on earth can you get a full range if sounds from a one inch speaker?
> Nobody will convince me that a 1 inch speaker gives the same sound as the
> combination 12 inch speaker (s) and a large sub-woofer does.

Back in the 50's, I remember an article in Popular Mechanics or Popular
Electronics about building a speaker assembly using 4 small 4" speakers.
The author claimed that if the 4 speakers had similar characteristics and
were properly phased, the group would perform like a much larger speaker.  I
remember walking home from elementary school down the alleys to collect
junked 5-tube superhets from which I could scrounge 4 speakers.  I did
finally build one, and thought it really sounded great, but I suppose a lot
of that was youthful imagination after all the effort to build it.  But I
digress.  Does a tender with 2 1" speakers produce measurably better bass
than one with a single speaker?  Should the designers be placing speakers
over the truck bolsters too so they can squeeze 4 or 5 into a tender?
Geezer
Edward A. Oates - 28 Oct 2006 18:07 GMT
> (snipped)
>> How on earth can you get a full range if sounds from a one inch speaker?
[quoted text clipped - 13 lines]
> over the truck bolsters too so they can squeeze 4 or 5 into a tender?
> Geezer

Actually, a 12" speaker is a bass speaker (subwoofer) component if properly
baffled. I have a 10" Sunfire sub for my computer sound which goes as low as
20Hz and with really low stuff can be downright scary...

A full range speaker system usually has at least two, frequently more
drivers of differing sizes: low, mid, hi, super hi, etc.

The array of smallish speakers (the PE article referred to a concept called
"Sweet 16", an array of 16 4" speaker, and the group of  four described was
an example project) was commercially built by Bose in the 901: 9 4" full
range speakers. It has the approximate surface area of a 13" speakers, and
with proper equalization has a -3dB point of 29 Hz. It had its own problems
with being a proper hifi speaker (rushing are by the bass ports, vague
directionality, etc.).

Just to give you an idea of an approximation of the air moving ability (not
even counting excursion distances or amplifier power needed):

A 12" speaker if considered a flat surface (like a piston, but it has more
area than that) is about 450 sq in. (pi * r**2); a 4: speaker is about 50 sq
in, so it takes about 9 of them to move the same amount of air as a 12"
speaker, assuming equal excursions.

It takes about 450 1" speakers to do the same and they cannot equal the
excursion distances.

That's one reason why I like using any sound equipped locos I have for just
bell and whistle and to turn the chug-chug (or whrrrrrr) off.
Signature

Ed Oates
http://homepage.mac.com/edoates
DCC wiring information is at http://www.wiringfordcc.com

Mountain Goat - 29 Oct 2006 04:21 GMT
>> (snipped)
>>> How on earth can you get a full range if sounds from a one inch speaker?
[quoted text clipped - 42 lines]
>That's one reason why I like using any sound equipped locos I have for just
>bell and whistle and to turn the chug-chug (or whrrrrrr) off.

What about the discussion in October MR? Steam engines don't sound too
bad but the Diesel sound has the problem of a high amount of bass
which is reproduced poorly by small speakers that fit in HO equipment.
The solution of directing the bass component to under layout woofers
was under discussion. Since the bass is less directional than higher
frequencies some people have used this successfully. According to the
article Soundtraxx is working on a commercial application of this.

The bass component of diesels was brought home to me several years ago
while standing on the platform in Swift Current Saskatchewan at 2 AM
and -30 F waiting for the E/B Canadian. Three SD40-2s were trying to
get 80+ loads of grain moving. It felt like someone was beating my
chest with a carpet beater. A little too much for the layout room
perhaps.
Alan Gilchrist - 29 Oct 2006 14:53 GMT
> The bass component of diesels was brought home to me several years ago
> while standing on the platform in Swift Current Saskatchewan at 2 AM
> and -30 F waiting for the E/B Canadian. Three SD40-2s were trying to
> get 80+ loads of grain moving. It felt like someone was beating my
> chest with a carpet beater. A little too much for the layout room
> perhaps.

 That's a sight you never forget, here in Ontario I watched on as 4
SD40-2's picked up a cut of about 30 or so covered hoppers and tried to
lift a train that was about at max. for the units, never forget not
only the sight, but the feel as well as the ground was just a
shaking....

Alan
Jon Miller - 01 Oct 2006 17:40 GMT
The LC (100 LC steam or diesel) group of Soundtraxx decoders can be had for
around $36-$40!
Alan Gilchrist - 01 Oct 2006 23:15 GMT
> The LC (100 LC steam or diesel) group of Soundtraxx decoders can be had for
> around $36-$40!

 To some people, that still would be too expensive when they can get a
standard decoder for $ 20 or less...

Alan
---
__________________________________________________________
/
                             \
|  What: Modeling Canadian Pacific in B.C. in the late 50's
     |
|  EMail: rag1957 at rogers dot com
              |
|  Web Gallery:http://www.pbase.com/cprfan
        |
\__________________________________________________________/
Jeff Hensley - 01 Oct 2006 14:59 GMT
On 9/30/06 8:31 PM, in article
RNudnWh34KnnkYLYnZ2dnUVZ_q-dnZ2d@adelphia.com, "Geezer"
<gquNOSPAMale@adelphia.net> wrote:

> Ok, I admit it right off - I'm an old analog DC block control curmudgeon.
> Over the last few years I have acquired a couple Broadway Limited models of
[quoted text clipped - 21 lines]
> (Yes, I'm hooked on Car Talk.)
> Thanks in advance, Geezer

A) Yes
2) N/A because of A)
C) Yes
D) Yes

Correcting the volume to resemble the prototype at distance helps a great
deal. Having the volume at full tilt all the time would be very annoying.
Stevert - 01 Oct 2006 22:12 GMT
> Ok, I admit it right off - I'm an old analog DC block control curmudgeon.
> Over the last few years I have acquired a couple Broadway Limited models of
[quoted text clipped - 21 lines]
> (Yes, I'm hooked on Car Talk.)
> Thanks in advance, Geezer

  As others have noted, you forgot one:

0) Adjust the sound to a reasonable level.

My answers:

0) Absolutely!
a) No
2) No
c) Sometimes
4) n/a

Stevert
kt0t - 02 Oct 2006 01:17 GMT
>> With that intro, I'm curious.  Those of you who have DCC equipped layouts
>> and sound equipped units:
[quoted text clipped - 7 lines]
>
> 0) Adjust the sound to a reasonable level. YES
Paul Newhouse - 02 Oct 2006 01:46 GMT
> a) how many run the sound all the time?

  NO

> 2) how many just run sound for visitors?

YES - primary use of sound is for shows.

> c) how many run the sound when you run trains solo?

Rarely.  Just to verify the sound is set the way I want it.
When checking out a new sound equipped loco.  BUT, normally
not.

> 4) how many run the sound during op sessions?

I run them muted most of the time.  I will turn on sound and
use the horn to get the attention of various members who may
have fallen asleep or have just forgotten to throw a switch
or some such thing.  Then it's immediately muted.

Paul
 
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