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From: Heliconman@aol.com
Date: Wed, 10 Nov 1999 22:47:40 EST
Subject: London/Boosey & Hawkes/CB Tuba?
Reply-To: contrabass@contrabass.comIn a message dated 11/10/1999 1:55:45 PM Eastern Standard Time,
pkoval@usd.edu writes:<< ........ the Boosey and Hawkes factory offers free conducted tours almost daily (they also have an
interesting musical instrument museum that contains an incomplete example of a bass rothphone.....>>I think I read somewhere that there ia a Contrabass tuba in this collection!
Was it perhaps the tuba owned by Gerard Hoffnung? Any idea if they have a
website or what their mailing address might be?<< The Horniman museum has a large musical instrument collection including ....>>
Their website is <http://www.horniman.demon.co.uk>
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Date: Thu, 11 Nov 1999 03:37:03 -0700
From: tubadave@jps.net
Subject: on the edge!
Reply-To: contrabass@contrabass.com"Tuba playing, or at least tuba sales is all smoke and mirrors."
BOY! are you glad you corrected yourself.......
---------------------------------------------------------Date: Thu, 11 Nov 1999 10:47:09 -0800
From: Lawrence de Martin <demartin@tesser.com>
Subject: Re: Electronic 32'
Reply-To: contrabass@contrabass.com> From: Heliconman@aol.com
> Movie theatres were using banks of Cerwin-Vega 30 inch woofers producing 12
> Hz tones cued from the film for the Sensurround<tm> effect in "Earthquake".
> If I remember correctly, the volume was up above 80dbAt 12Hz, the sound pressure level would have to be at least 100dB to be
audible under a movie soundtrack. I suspect it was more like 105-115dB,
which is not damaging at extreme bass frequencies. Another famous
example of extreme bass sound effect is "Jurassic Park". Premium movie
theatres now line the floor under the screen with massive subwoofers and
install bass traps of large dimensions, to achieve high volume (but not
necessarily musical) low bass.
>> A further obstacle is picking up a pipe.
> Perhaps the use of a subwoofer wired as a microphone diaphagm!That could work quite well for recording, but it I believe it would
feedback too much for a sound re-inforcement application
> I remember recently some talk about large volume sound systems that use tiny
> speakers that produce a pair of ultrasound signals that produce beat
> frequencies within the range (and below?) of human hearing.I heard them at the '97 CES. They achieve their efficiency by creating
the sound at the ear of the listener, and so are not practical for a
group audience. I am also very cautious about the adverse biological
effects of high-intensity ultrasonic waves. The bottom line is that the
lower the bass, the more the power, space and weight are required.
> From: Grant Green <gdgreen@contrabass.com>
> How about folded horns, like the Klipschorn? According to their
> website (<http://www.klipsch.com>), their folded horn speakers are
> rated +/- 3 dB down to 17.5 Hz.Thank you for reminding me. My research has been focused on bass
instruments with sharp attack (percussion, plucked strings and winds),
which do not work so well with horns or vented boxes. The horn can
achieve a pressure-to-air volume transform of 10:1, increasing the
efficiency and acoustic output by that ratio. Horn transient response
is adequate for organ pedal notes, and the (expired) Klipsch patent
utilizes the volume of the room corner to achieve bass extension.Does anyone have experience running an organ through a corner horn?
Larry de Martin
---------------------------------------------------------Date: Thu, 11 Nov 1999 10:51:27 -0700
From: Grant Green <gdgreen@contrabass.com>
Subject: Re: Electronic 32'
Reply-To: contrabass@contrabass.com>> From: Grant Green <gdgreen@contrabass.com>
>> How about folded horns, like the Klipschorn? According to their
>> website (<http://www.klipsch.com>), their folded horn speakers are
>> rated +/- 3 dB down to 17.5 Hz.
>
>Thank you for reminding me. My research has been focused on bass
>instruments with sharp attack (percussion, plucked strings and winds),
>which do not work so well with horns or vented boxes. The horn can
>achieve a pressure-to-air volume transform of 10:1, increasing the
>efficiency and acoustic output by that ratio. Horn transient response
>is adequate for organ pedal notes, and the (expired) Klipsch patent
>utilizes the volume of the room corner to achieve bass extension.There is a Washington state company, Speakerlab, that used to make a
corner horn kit for much less than the Klipschorn. They're still in
business, but I don't see the corner horn on their website
(http://www.speakerlab.com). Maybe they have a couple of old kits
lying around?Grant
+++++++++++++++++++++++++++++++++++++++++++++
Grant Green gdgreen@contrabass.com
http://www.contrabass.com
+++++++++++++++++++++++++++++++++++++++++++++
---------------------------------------------------------Date: Thu, 11 Nov 1999 11:13:26 -0700
From: Grant Green <gdgreen@contrabass.com>
Subject: Re: Horniman Museum
Reply-To: contrabass@contrabass.com><< The Horniman museum has a large musical instrument collection including
>....>>
>Their website is <http://www.horniman.demon.co.uk>This is pretty interesting. It is unfortunate that so many of the
instruments listed are not also pictured, and that you can't tell
which of the instrument currently have pictures from the index (seems
to me like only a few had pictures, at least of the ones I looked at).One of the few that was pictured is the octoroon (under "aerophones"
and "reedpipes"). However, the picture by itself isn't very
illuminating. What *is* this thing?Grant
+++++++++++++++++++++++++++++++++++++++++++++
Grant Green gdgreen@contrabass.com
http://www.contrabass.com
+++++++++++++++++++++++++++++++++++++++++++++
---------------------------------------------------------From: RBobo123@aol.com
Date: Thu, 11 Nov 1999 18:06:00 EST
Subject: Re: Horniman Museum
Reply-To: contrabass@contrabass.comMaybe it's an one of those Octave Bassoons (Or Altoons, as i call them) that
i've heard about. Just a thought.
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