Ceiling Speaker and Cluster Speaker in Circular and Sloping Hall
mcbkat
view is as per the sketch attached.
My question is:
Will the speaker system cause big problem in delays/echos problems? How to
over come it? I know you can introduce delays to the ceiling speakers with
respect to the clusters, but is this a solution. Wouldn't a listener on the
floor gets audio from the cluster, the ceiling speaker on top of him, and
speakers from left, right, front, behind and other speakers at other times.
Delay would be a complicated design here? How do big theatres solve this?
Problem is all the ceiling speakers are already installed, and I need a
solution on the software/processing part.
Should the cluster speakers be run together with the ceiling speakers?
Thanks in advanced.
and by the way, thanks for the feedback previously on my query on the audio
mixing console (midas or cadac). The choice at the end is the midas because
of cost issues. Thank you anyway.
beekay
Scott Dorsey
>I am working on a new auditorium. It is circular in plan and the sectional
>view is as per the sketch attached.
The sketch was dumped by some server ahead of me, since it's such bad form
to post binaries to discussion groups.
>My question is:
>Will the speaker system cause big problem in delays/echos problems? How to
>over come it? I know you can introduce delays to the ceiling speakers with
>respect to the clusters, but is this a solution. Wouldn't a listener on the
>floor gets audio from the cluster, the ceiling speaker on top of him, and
>speakers from left, right, front, behind and other speakers at other times.
>Delay would be a complicated design here? How do big theatres solve this?
WIth delay rings. The ceiling speakers are arranged in rings, each of which
has a constant distance from the main stage, and a delay line to delay them
just the right time.
>Problem is all the ceiling speakers are already installed, and I need a
>solution on the software/processing part.
You might need to rewire them, depending on where they are placed.
>Should the cluster speakers be run together with the ceiling speakers?
No, because they are in different locations. Maybe you don't want to use
the ceiling speakers at all. What does it sound like without them?
>and by the way, thanks for the feedback previously on my query on the audio
>mixing console (midas or cadac). The choice at the end is the midas because
>of cost issues. Thank you anyway.
The Midas is a fine console and I think you'll like it.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
The_Rooster
I work closely with Renkus-Heinz.. They have people to answer all your
questions. hbm...@yahoo.com
mike
"mcbkat" <mcb...@tm.net.my> wrote in message
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Michael Gaster
"The_Rooster" <greenw...@yahoo.com> wrote in message
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> you should definitely give us a call with any of your questions. I can
help.
> I work closely with Renkus-Heinz.. They have people to answer all your
> questions. hbm...@yahoo.com
>
> mike
being a big RH guy my self (User and Designer of their systems) what is your
involvement with them? dealer? work for a dealer?
consultant?
...just courious for "shop talk" purposes. I have occasional Email
conversations with Ralph Heinz and might end up repping them.
Michael
Michael Gaster
news:3e2e9...@news.tm.net.my...
> I am working on a new auditorium. It is circular in plan and the sectional
> view is as per the sketch attached.
>
I didn't see a sketch however I would like to take a look. please email
me...
> My question is:
> Will the speaker system cause big problem in delays/echos problems?
It can depending on how many and where they are placed. in some situations
you cant get around some echo depending on the shape of the room and
audience Positioning.
How to
> over come it?
Reposition based on audience location try different arraying with tighter
pattern horn configurations and dipole LF loading for Lf control... few
different possibilities all application specific. What speakers what room???
or what room then what speakers???
I know you can introduce delays to the ceiling speakers with
> respect to the clusters, but is this a solution.
if delays are in place and necessary they to need to be time corrected to
the main arrays in order to not produce any more "echo" type issues. delays
can be used to assist in lessening room excitement thru distribution of the
sound... so main arrays don't have to be "driven" in order to have adequate
SPL in the back of the room (resulting in room excitement resulting in
in-intelligibility AKA poor sound from room response generated by the sound
system).
Wouldn't a listener on the
> floor gets audio from the cluster, the ceiling speaker on top of him, and
> speakers from left, right, front, behind and other speakers at other
times.
> Delay would be a complicated design here?
Not necessarily
>How do big theatres solve this?
Placement placement placement... placement of audience, placement of main
arrays, placement of delay speakers, then measurement test then just
listening (which is most important)!!!
>
> Problem is all the ceiling speakers are already installed, and I need a
> solution on the software/processing part.
i cant help you here until I see some Dwg's
>
> Should the cluster speakers be run together with the ceiling speakers?
Not exactly. I would need to know more about the system to really advise
here.
>
> Thanks in advanced.
>
> and by the way, thanks for the feedback previously on my query on the
audio
> mixing console (midas or cadac). The choice at the end is the midas
because
> of cost issues. Thank you anyway.
>
> beekay
>
Which Midas did you get/ are going for?
Also with the size of the venue and the fact that you are using a MIDAS
console and was considering a CADAC I would think that you have a Pro Audio
Contractor working on the project and that most of these concerns should
have already been addressed. I am just curious as to why the end user is
asking such questions here? or are you the contractor?
Michael
SoundCrew
from the sound source. For a small home theatre, this may be negligible.
Large venues use delays to address that time alignment/misalignment issue.
"mcbkat" <mcb...@tm.net.my> wrote in message
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Kurt Albershardt
Michael Gaster
"SoundCrew" <soun...@cox.net> wrote in message
news:d8qY9.14083$LA4.1...@news1.west.cox.net...
> You may consider that a "second" of audio misalignment occurs every 100
feet
> from the sound source. For a small home theatre, this may be negligible.
>
> Large venues use delays to address that time alignment/misalignment issue.
errrr.... I hope you didnt mean what you typed...
Michael
Scott Dorsey
>You may consider that a "second" of audio misalignment occurs every 100 feet
>from the sound source. For a small home theatre, this may be negligible.
You're an order of magnitude off here.
Bruce G. Stewart
> You may consider that a "second" of audio misalignment occurs every 100 feet
> from the sound source.
Lee Salter
Your situation sounds complicated enough to justify hiring a
"Consultant",
someone who can deal with the acoustic issues and not just someone who
can design a system by hooking components together. Let me suggest
that you
visit the "Church Sound Check" (CSC) site and ask your question there.
You will get information from some extremely knowledgeable people.
Lee Salter