Meetings and other Notices
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November Zoom Meeting |
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Date:
Tuesday,
November
17, 2026
Time:
7-9 pm
EST
Place:
ZOOM
Only
Topic:
Thinking Outside the Array:
Paul
Hales of
Theory
Audio
Design
Speaker:
Paul
Hales
For our November meeting,
the
Boston
Audio
Society
welcomes
Paul
Hales,
founder
and CEO
of
Theory
Audio
Design
and
Theory
Professional.
Hales
will
discuss
Theory’s
approach
to
loudspeaker
design,
including
an
intriguing
alternative
to
conventional
line
arrays:
carefully
controlled,
wide
dispersion
intended
to keep
the
direct
and
reflected
sound in
tonal
harmony
throughout
a room.
He’ll
place
that
idea
within
Theory’s
broader
technology,
including
its
custom
drivers,
DSP-based
loudspeaker
controllers,
and
system-level
approach
to
amplification
and
processing.
Hales
will
also
discuss
how
Theory
is
positioning
and
marketing
a
relatively
young
company
in the
crowded
professional
and
premium
audio
markets.
For a
preview
on
Paul's
work and
business,
please
check
his
recent
podcast
here: https://podcasts.apple.com/us/podcast/paul-hales-challenges-the-audio-industry-have-we/id1566783125?i=1000797242475
Paul Hales is an audio
industry
veteran
and
loudspeaker
designer
whose
career
includes
Hales
Design
Group,
QSC, Pro
Audio
Technology,
and
Theory
Audio
Design.
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
November 2026 |
Miscellaneous News
1.
From Voice Coil
September 2026, Mike
Klasko
For a replacements
for cooling fans
there are piezo and
even ionic
techniques.
Piezo
ultrasonic MEMS
cooling works by
using microscopic
films that vibrate
to pump air.
They pull
cool air from top
vents, force it at
extreme velocities
across hot chips (or
even headphone ear
cushions) to exhaust
hot air and
moisture.
An
alternative is
Ventiva’s Ionic
Cooling Engine (ICE)
through electro
hydro dynamics
(EHD).
It works by
applying a high
voltage to a tiny
wire to create a
plasma field, which
strips electrons
from nearby air
molecules, turning
them into positive
ions.
These ions
are attracted to a
negative grill and
collide with neutral
air molecules.
This creates
a continuous and
directional stream
of airflow across
thermal surfaces.
As the ions
pass through the
grill they collect
their missing
electrons and return
to being neutral as
they exit the device
to cool the system.
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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