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Re: OT: giant pipes down Portola Avenue in Santa Cruz andother natural reverbs



I was just skateboarding at lunch... we've been bombing hills out in the 
Santa Cruz mountains. Anyway, we dropped down this fast pitch of a 
divided, 2 level street, where one direction is about 10 feet higher than 
the opposite direction. The lower path wall being reinforced with the 
corrugated siding, separated by something like 6" x 6" wood posts. The 
first time we passed it my partner said he thought he had a wheel coming 
loose or something. The next time around, I listened for it, and it was 
the sound of my wheels on the asphalt reflected back, doppler effect and 
all. We probably go past that wall at about 25 mph, maybe 3-5 feet away 
from it.

-Miko

>>> "Michael LaMeyer" <m.lameyer@verizon.net> 08/22/01 10:03AM >>>
If you play something really loud (further back is better) at
the broad side of a building covered with vertical corrugated
siding, and then dance wildly back and forth between the
building and the sound source, you get the equivalent of a
physical comb filter/phaser.  If you can find two buildings like
this parallel to each other, it hurts.

Mike

----- Original Message -----
From: "Dave Trenkel" <improv@peak.org>
To: <Loopers-Delight@loopers-delight.com>
Sent: Wednesday, August 22, 2001 2:17 AM
Subject: Re: OT: giant pipes down Portola Avenue in Santa Cruz
and other natural reverbs


> >On Mon, 20 Aug 2001 23:35:07 -0700, "Rick Walker
\(loop.pool\)"
> ><GLOBAL@cruzio.com> wrote:
> >
> >>WHAT KICK ASS SONIC ANOMALIES DO YOU KNOW OF IN YOUR
HOMETOWN........WHAT
> >>WIERD ASSED PIECE OF ARCHITECTURE OR SCULPTURES OR PLUMBING
EXISTS TO BE
> >  >STRUCK OR BLOWN ON OR OTHERWISE PUSHED INTO
RESONANCE........
> >
> Where I grew up, on a farm in Eastern Oregon, there was a
pipeline
> for an irrigation project that came out a few miles away.
Metal pipe,
> 8ft diameter, about 50 miles long. In high school, we used to
take
> instruments, battery-powered amps, tape decks, etc, as far
into the
> pipe as we dared and play/record. We never really knew when
water may
> be run through, so there was always some element of risk.
Great
> acoustics, though.
>
> --
> --------------------------------------------------------------
-----------
> Dave Trenkel                                New and Improv
Music
> http://www.newandimprov.com         improv@peak.org 
>                  Now Available: Minus: Dark Lit
> "This is music all-consuming in its beauty and power"
>                                 -Jake TenPas OSU Daily
Barometer
> --------------------------------------------------------------
-----------
>