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Boston Audio Society
FOUNDED 1972

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Meetings and other Notices

The Boston Audio Society now has its own YouTube channel:
www.youtube.com/@bostonaudiosociety

The October Zoom Only Meeting

Date: Saturday, October 11, 2025, 2:00 PM EST

Featured Guest: Tomlinson Holman

Topic: Career(s) of Tom Holman

​An Exciting Event for BAS Members and Guests

BAS members and guests will have the opportunity to attend a remarkable presentation at our October meeting. The featured speaker will be Tom Holman. If I chose to list only Tom’s awards it would take up multiple pages. Instead, I will post only a few of the companies in which he was the owner or employee.

Curriculum Vitae of (Professional Background)

Apple Inc., Distinguished Engineer and Director, 2011 – 2021.
Audyssey Labs, Chief Scientist, 2002 – 2011.
TMH Corporation, President, Founder, 1995 – 2022. Later became
  Tomlinson Holman Company 2022 –
Lucasfilm Ltd., Corporate Technical Director. 1980 – 1995.
Apt Corporation, President, Founder, 1977 – 1980
Advent Corporation — Chief Electrical Engineer, 1973–77.

A listing of a few of his many scientific achievements and awards:

Education - Tom received from the University of Illinois at Urbana-Champaign a  B.S. Communications 1968. He wrote the THX Sound System Instruction Manual, Lucasfilm Ltd, 1987, Facilities Development and Engineering for Motion-Picture Production, Television, and Performing Arts 1994, etc.

 

Boston Audio Society
PO BOX 260211
BOSTON MA 02126
617.271.6588

 

Join Zoom Meeting

Ken Schwarz is inviting you to a scheduled Zoom meeting.
 

Topic: Career(s) of Tom Holman

Time: October 11, 2025 02:00 PM Eastern Time (US and Canada)

Join Zoom Meeting

 

https://us02web.zoom.us/j/83920146976?pwd=XsGcO7rV8SUOlBi2dUQUtDQTrK1C7K.1

 

Meeting ID: 839 2014 6976

Passcode: 630220


One tap mobile

+13092053325,,83920146976#,,,,*630220# US

+13126266799,,83920146976#,,,,*630220# US (Chicago)

 

Join instructions

https://us02web.zoom.us/meetings/83920146976/invitations?signature=PYuqwRBwgBN9PDr9nzFXQXWyQ3EzygRuuwNv3unTHOI


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Hope to see you then.

THE BAS MESSAGE
October 2025

Miscellaneous News

1.  New Pipe Organ Shakes the Pews At Trinity Church

Trinity Church in Lower Manhattan survived the attacks that destroyed the nearby towers. But its aging organ, a 5,000-pipe Aeolian Skinner, which had been in service since 1923 and had already seen better days, was deemed beyond repair.

Now, its replacement has been unveiled with a recent concert by the organist Anna Lapwood that filled the church with sound and a message of hope. ''It's an amazing instrument,'' Lapwood said. ''You can really feel you are playing the building as well as the organ itself.''

The new instrument, 10 years in the making and costing nearly $17 million, including the price of woodwork and casing, boasts 8,041 pipes, some as high as 32 feet. In 2003, still without an organ, Trinity installed a digital one called the Opus, built by Marshall & Ogletree of Needham, Mass. The notes from the ''organ'' came not through pipes, but from 74 speakers hidden behind fake pipes in the choir loft.

Not surprisingly, this did not go down particularly well, at least in some corners of the Trinity music community.  In 2018, the church underwent a renovation and ended its use of the digital organ.

Unlike its predecessor, it produces no sound electronically, but the mechanism tying it all together is mostly electronic. On the front console, plucking a key sends an electric signal through an Ethernet network, resulting in a blast of air through the pipes. (A technician uses an old iPod to tune the instrument.)

It reached higher than any other building in the United States when it was completed in 1846. That is no longer the case, but Trinity remains by any measure a very big church. And after 24 years, it once again has an organ that fills that space. ''You feel it all through your body,'' said Melissa Attebury, Trinity's director of music. ''It is magnificent.''

Nagourney, Adam;Etheredge, George. NYT Oct 5, 25

 

2. The BAS is looking for a new webmaster. The current webmaster will train you and hand it over to you, and provide support as necessary. The website is written in simple HTML. You will need a computer and a high speed internet connection (you will need to download a 6GB backup in a reasonable amount of time). The annual payment is $300. You may be asked to support administration of the BAS Facebook pages as well.



Below, other meetings and notices which
may be of interest to BAS members

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

GBH Awarded $16 Million to Digitize Radio, TV Broadcasts
www.radioworld.com/news-and-business/gbh-awarded-16-million-to-digitize-radio-tv-broadcasts

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


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


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]


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


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

Foster's Test Bench !
by Alvin Foster !    Click the logo: —>
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
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
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   
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

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 !


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 -

AES Future Meetings
www.bostonaes.org

Acoustical Society of America
www.gbcasa.org
SMPTE New England
www.smpte-ne.org

There is a posting of an ABX article, The Digital Challenge by Stanley P. Lipshitz HERE


The Boston Audio Society
PO BOX 260211
Boston MA 02126


updated 4/14/23