Meetings and other Notices
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Date:
Tuesday,
October
27, 2026
Time:
7-9 pm
EST
Place:
ZOOM
Only
Topic:
The
Battle
of Light
and
Sound:
Report
from
CEDIA
Speaker:
Ken
Wacks
CEDIA is
a trade
association
for
custom
integrators
of
audio/video
(A/V)
and home
systems.
CEDIA
Expo
held
each
September
is an
opportunity
for
suppliers
to
showcase
leading-edge
products
to these
integrators.
This
market
can be
lucrative
since
CEDIA
integrators
combine
audio/video
and home
automation
products
to offer
custom
solutions.
Their
market
ranges
from
high-end
to the
elite
with
some
budgets
in the
millions
of
dollars
for home
theaters.
Ken
Wacks
will
present
a
compilation
of the
CEDIA
Expo
2026
exhibits
that got
his
attention
as novel
or
unusual.
He is
planning
to
include
descriptions,
photos,
and
video
clips
covering
loud
speakers,
A/V
networks,
lighting,
and
control
systems.
The Boston Audio Society is a
gathering
place
for
audio
and
video
hobbyists.
For 53
years,
we have
worked
diligently
to
create
an
atmosphere
of
consumer,
audio
education
at its
best.
Join
Zoom
Meeting
https://us06web.zoom.us/j/86530168861?pwd=ibtWPYYHWj1x80pMswaw6vklevfeaP.1
Meeting
ID: 865
3016
8861,
Passcode:
867871
You can
ALSO
click on
this
link and
simply
DIAL IN
to
participate:
https://us02web.zoom.us/u/kcgU8tvYvR
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Hope to see you
there.
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THE BAS MESSAGE
October 2026 |
Miscellaneous News
1.
For 15 years, Kelly
Pribble, working for
Iron Mountain, has
been at the
forefront of an
obscure but vital
industrywide effort
to save old tapes —
for which he employs
an assortment of
handmade tools and
Rube Goldberg-worthy
machines in a
cramped workshop.
Some of the most
jeopardized
recordings are from
the 1970s and ’80s,
after manufacturing
changes introduced
problems that became
evident only with
time. Unless the
tapes are properly
preserved, their
slow decay will
threaten the
survival of original
recordings from vast
swaths of music
history.
“It’s a race against time,”
Pribble said.
In 2011, the
company sent Pribble
to examine problems
among a cache of
thousands of
audiotapes in
Brazil. Many had
been affected by
mold, a common
hazard plaguing
tapes not held in a
climate-controlled
environment.
Another routine problem
among tapes of 1970s
and ’80s vintage is
“sticky shed
syndrome.” Also
known as hydrolysis,
it is a
deterioration in the
material that holds
together a tape’s
oxide — the magnetic
compound that
contains its audio
information —
resulting in a
residue that can
destroy the tape if
it is played. The
fix, long
established,
involves “baking”
tapes in an oven to
release trapped
moisture.
But what Pribble saw in
Brazil, he said, was
far worse. More than
a thousand tapes
were bound together
so tightly on their
reels that they
seemed like a solid
mass. With others,
an oily lubricant
had leached to the
surface.
He experimented with
solutions and built
prototypes to repair
the tapes, a process
that took three
years.
His unbinding process
involves soaking
tapes in a solution
of deionized water —
he declined to
specify the formula,
calling it a trade
secret — for as long
as a month. He then
places the tapes in
a tub with an
ultrasonic cleaner,
which sends an army
of tiny bubbles to
penetrate between
the tape’s layers.
Pribble was sent about 350
tapes of live
recordings from
Springsteen’s
archive. More than
100 exhibited what
Pribble calls “loss
of lubricant
syndrome,” in which
a gooey, beige
material collects on
the tape head when
played, distorting
the audio and
possibly damaging
the equipment.
His weapon to attack this
problem is a humble
roll of pellon — the
white adhesive used
in waxing salons —
which he affixes to
a paintbrush-size
handle made from PVC
plumbing pipes. He
removes the excess
lubricant by
rotating the pellon
back and forth
against the tape as
it rolls through a
decommissioned deck,
one song at a time.
Its clean state may
last only 30 days —
long enough to
transfer its
contents to another
format, usually
digital.
Another engineer spent 100
hours cleaning mold
off of tapes with
lighter fluid.
New York Times, December 1,
2025
Boston
Audio
Society
PO BOX
260211
BOSTON,
MA 02126
978-944-6481
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Below, other meetings and notices which
may be of interest to BAS members |
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JUST RELEASED !
A fantastic historical video!
Ken Berger and Kenton Forsythe are the founders of EAW (Eastern Acoustics Works) and they discuss, with terrific overlaid graphics, the history of, well, pretty much every audio thing Boston from the early 70's.
18 minutes and right here: https://youtu.be/fPfQEK0b0mI
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A Boston issue - As MIX magazine reports:
Sound Museum owners cry foul as their tenants likely secure new spaces without them
While the headline sounds like someone has sour grapes, the complete story of how the closure of this crucial Boston rehearsal studio is being handled is far more nuanced and complicated -- particularly since it brings up issues of gentrification, government support of the arts, non-profits' ethics and more. Full Story HERE (WBUR-FM Boston (1/11/23)
And here's an update:
www.wbur.org/news/2023/01/25/charlestown-rehearsal-studios-musicians-boston
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MAHLER 3
In the recent (April 2022) performance of Mahler’s Third Symphony at Boston's Symphony Hall by Ben Zander and his Boston Philharmonic, the recording was done with the three main spaced omnis with two more farther back. No accent mikes or chorus microphones were used nor, it turns out, were they needed. Remarkably, this produced a recording that is as close to the Symphony Hall experience as may be possible.
The info is here: www.bostonphil.org/concerts/2021-2022/bpo4-mahler3
Here is the recording in its entirety as a single .WAV file; 44k / 16 bit; 1hr 47 min
Mahler Sym 3 CD.wav 1.1GB
(For those of you with editing software note that the .wav file HAS markers to denote the movements.)
Here is the exact same Symphony 3 with the movements separated as FLAC files, 48k / 24 bit as a ZIPped file: Mahler 3 Zander as FLAC.zip 1GB
IF you'd like further Gustav Mahler info... https://en.wikipedia.org/wiki/Gustav_Mahler
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Shop Talk
Shop Talk was a WBUR program about Hi Fidelity, music, speakers, tape recorders, etc. Enjoyed by many during the 1970s, the program's format was ‘talk’ and interviewing major audio luminaries. It was a forerunner of the popular program Car Talk!
Peter Mitchell and Dr. Richard Goldwater were the original hosts. They were later joined by Brad Meyer. Here, John Allen interviews Scott Kent:
Shop Talk John Allen talks to Scott Kent on SPEAKERS.mp3 (81Mb 1:27)
Shop Talk John Allen talks to Scott Kent on TAPE RECORDERS.mp3 (79Mb 1:26)
There is also an episode track on the BAS CD and here is that Description:
Track 12. "Shop Talk", WHRB-FM, November 5, 1984.
Peter Mitchell (on the left), Richard Goldwater, MD (center) and E. Brad Meyer (right) introduce the show with a 1932 stereo recording and prepare to talk with guests Mark Davis and David Moran, both then of dbx corporation.
Shop Talk, which through most of its ten-year life on WBUR featured just Mitchell and Goldwater, was the precursor of Tom and Ray Magliozzi's "Car Talk". As we finished our 9:00-10:30 stint every Saturday morning, Tom and Ray would take our places and begin joking with each other. Eventually the station manager figured out that they were funnier than we were, and that more people drove cars than owned hi-fi equipment, and fired us. Until then, the show publicized the Boston Audio Society, vastly increasing attendance at our monthly meetings. The show came back for a time during the '80's on the Harvard station WHRB, where we appeared once a month as guests of HRB stalwart David Elliott. [EBM]
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| BAS MICROPHONE CLINIC REPORT ! |
| In September 2009 the B A S held a microphone clinic, testing 37 different microphone models. The ambitious nature of the clinic effort, the extent of data collection, the number of individuals involved in microphone testing and in writing various sections of the report, and the complexity in determining how to construct the clinic report and make it available to members resulted it not being published until now. The dataset is extensive.
Representative samples were included in the abbreviated report in "The B A S Speaker"
(Fall 2015; v37n3)
Go to the MICROPHONE CLINIC PAGE for more...
...and don't forget, here is the master list of microphones in the world
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When collecting and plotting "noisy" data it is often useful to have Microsoft Excel plot a Trend Line through it. If that data is to be used for further work, it may be necessary to have an X-Y table of the Trend Line. That is not easy to get and this paper will show how to do it.
Joseph DeMarinis has an article here: Extracting Numerical Data from an Excel Trend Line
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Foster's Test Bench !
by Alvin Foster ! Click the logo: —> |
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The rapidly-becoming-famous BAS Headphone Test Article is now available in the BASS VOLUME 25, ISSUE 4, on Page 17, available HERE PDF 3mb |
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Visit our PODCAST PAGE for:
The LIVE video podcast of our meetings,
Archived video of past meetings (only one so far!),
and Audio Podcast interviews by Alvin Foster |
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There is a supplemental and further explanation addendum paper to the E. Brad Meyer / David Moran paper published in the September, 2007 issue of the AES Journal. That page, which documents the experimental protocol and audio systems/source material is here:
www.bostonaudiosociety.org/explanation.htm |
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| There is a Power Point Presentation of the lecture given by Dr. Barry Blesser at the March 2007 Meeting. The Meeting page synopsis is HERE; the Power Point Presentation (as a web page) is HERE |
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Some earlier BASS issues, previously available only directly by mail, are now available online, on the BAS SPEAKER page, HERE
Show your appreciation for the immense amount of dedicated work that went into both the original writing, gathering, editing and printing, PLUS the more recent scanning and conversion to PDF format, by joining the Society, HERE !
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A L L O F F S I T E L I N K S O P E N I N T O A N E W T A B O R W I N D O W
- AND FOR CONVENIENCE -
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