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Meetings and other Notices

The Boston Audio Society now has its own YouTube channel:

The February In Person Only Meeting

Date: Thursday, February 29, 2024, 6:00 PM EST
Pro Audio Design Inc., 199 Winter St. Hanover, MA 02339 (781) 982-2600
Featured Guests: The Boston Audio Society is invited to join the AES in visiting Pro Audio Design, Inc.

Topic/Activity: Tour of facilities

We are joining the AES in a tour of Pro Audio Design Inc. There we will visit the TAD Labs Listening Room, the Augspurger Listening Room, have an Augspurger manufacturing tour, attend the used gear open sale, and have some refreshments.

Registration is required. Use this link here.

Come experience it for yourself at the AES February event, hosted by Pro Audio Design, Inc. 

Hope to see you Thursday, February 29, 2024, 06:00 PM

DIRECTIONS Take 93 South to Rt. 3 South, take exit 35 towards Hingham, go left onto Rt 228 and right onto Pond St. Continue onto Whiting St., Pleasant St., Circuit St. for 4.8 mi. total, turn right onto Winter St., arrive at 199 Winter St.

This meeting will not be Zoomed.

You must be present to attend the meeting.

February 2024

Miscellaneous News

1. Thwack! Thwack!

Presidio Heights in San Francisco is "a rarefied community where Silicon Valley's elite mingle with affluent families," a real estate description coos. There are tennis and basketball facilities, swings and ballfields.   It is also ground zero of the latest pickleball battle in America.

Holly Peterson, who lives in a 12,000-square-foot $29 million home  (with a pickleball court) commanding views of the Golden Gate Bridge -- and of the free public pickleball courts--helped launch a petition asking the city to suspend pickleball in a nearby playground called Presidio Wall: "The endless racket threatens the fragile ecosystem and our community's prestige," the petition argued.  Peterson said the loud whacking of pickleballs as early as 6:20 a.m. jeopardized property values, and said, "I personally have suffered irreversible damages" -- noting her own house had been on the market for six months. Peterson's neighbor also testified, describing a "frequent popping sound and the yelling and the shouting and the screaming that goes along with this very passionate sport."

San Francisco's park commission contracted with acoustics firm Salter for a noise-assessment study, which was conducted over a seven-day period. Ambient noise levels measured at about 40 decibels at several locations, including balconies and roof decks; pickleball readings spiked to as high as 94 decibels, equivalent to a hair dryer.

After review, they proceeded with a plan to take six of the 12 pickleball courts out of commission and turn them back into solely tennis courts.

(Pickleball is cross between tennis and ping pong, played with a hard ball and hard racquet, on a 1/4th size court)  WSJ 22Ja24

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

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:

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:


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:

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  1GB

IF you'd like further Gustav Mahler info...

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]

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:   
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


AES Future Meetings

Acoustical Society of America
SMPTE New England

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