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Meetings and other Notices
October 2021 Online AND In-Person meeting notice

DATE: Saturday, Oct. 16th from 1:30 - 3:30 PM Eastern/Boston
--- NOTE DATE & TIME ---

PLACE: Lexington Recreation & Community Center, 39 Marrett Rd., Lexington, MA 02421
Room 242 (Commander's Office), (781-698-4800) (AND Zoom, below)

FEATURED GUEST: Poh Ser Hsu (pronounced shoe) on ZOOM & In-Person Attendees

Topic: Designing a Company Based on Woofer Research

What is the story behind HSU Research?

HSU Research began as a specialized deep bass research company in 1991. Dr. Hsu started the business shortly after receiving a PhD in engineering from MIT. He moved to Orange County, California with the dream of making the world’s best subwoofers.

Dr. Hsu started with a subwoofer made of recycled cardboard tube called a sono-tube. It was seven feet tall. The experiment was powerful, and played pristine bass notes deeper than humans can hear, down to 16 Hz. Dr. Hsu called the design a "true subwoofer."

It was a good review in Stereophile & the BAS Journal that sparked the first wave of customers. High-end audio enthusiasts read the reviews and were thrilled to save on full spectrum sound. Soon after, the early products sparked a tube subwoofer hobby amongst budget-conscious enthusiasts on the Internet.

Driving Directions from Boston:

Take I-93 N to MA-16 W/Mystic Valley Pkwy in Medford.
Take exit 31 from I-93 N. Get on MA-2W.
Take Exit 131 and bear right onto Pleasant St; go .9 miles.
At the stop sign turn left onto Mass Av and after 1/2 mile, left on Marrett Rd.
It is then on your right.

Driving Directions from the West:

Take Rte 2 to Lexington, exit 130, Pleasant St.
Follow Pleasant St to the end (.9 miles).
At the stop sign turn left onto Mass Ave, and after 1/2 mile, turn left on Marrett Rd.
It is then on your right.

Lexington Recreation & Community Center
39 Marrett Rd
Lexington, MA 02421, USA

The entrance to the Center is from Marrett Rd, and is shared with the National Heritage Museum & Scottish Rite/Masons Center.
Drive past the Masons Center and up the hill. The Community Center is at the top, a big, brick building. There is ample parking just below or behind the building.
There is only one center entrance
The reception station is to the left.

Join the Zoom Meeting

Ken Schwarz is inviting you to a scheduled Zoom meeting.

Time: Saturday October 16th 2021 from 1:30 - 3:30 PM Eastern (SUGGEST 1:15 PM )

Meeting ID: 894 1478 6087

Passcode: 989644

If you are using a computer and this is your first time with Zoom, give yourself at least 15-20 minutes prior to the meeting to set things up: you click on the link in the Zoom instructions below and will be guided to download the Zoom software, HERE:

You can use your computer’s audio if you have a headset attached, or you can dial-in for audio. If you have a smart phone or tablet and a good internet connection, then you should install the Zoom app for your device and connect using it.

October 2021

1. Last year the global games market generated $152.1 billion from 2.5 billion gamers and is now larger than both the film and the music industries combined. And as the size and scope of its soundtracks, with bigger budgets allowing composers to look to lavish film scores for inspiration.

BBC MusicNv20

--The average Chinese child spends twice as much time with videogames as an American one.

The Chinese government has ordered that children spend no more than 3 hours a week on videogames.

[Nice to be in a totalitarian state]

2. Non audio item

Plantar Fasciitis

Someone mentioned Plantar Fasciitis and I didn’t know what it was so I did some research. It’s not in my copy of The American Medical Association Home Medical Encyclopedia (1989) so it must be a recent problem, perhaps due to increasing obesity and increasingly sedentary life styles.

I went to the Mayo Clinic site and found some information.

It is a problem with the arch of the foot, mainly where the muscle attaches to the heel. It is a tendon injury and can be very painful. Tendons have almost no blood supply so healing takes a long time. Risk factors include obesity, marathon running, walking, and standing. The treatments suggested may promote healing but otherwise are useless and don’t help you to prevent it in the future. Stretching is no benefit. They recommend icing which is entirely discredited. (The inventor of R.I.C.E has renounced it!) It slows the healing process.

What is needed is impact-based exercise to strengthen the muscles and tendons involved.

Then why do marathon runners suffer from it? The answer is that running is in one plane and strengthens your arch in only one direction. All other directions become weak, even weaker than if you didn’t jog at all. The body has finite resources and will devote them to what it perceives as most important. Running on a treadmill is even worse and running on broken terrain is in between.

What I do is Circular Jogging which stresses the foot by impacts in a 360 degree arc so you are protected from injury at every angle. I jog in place for 18 minutes every day while moving my feet through an arc of 360 degrees.

Someone asked about jogging on beach sand (or jogging through water). This gives good aerobic exercise but otherwise promotes the myth that low impact exercise is good for you.

There is evidence that cartilage likes cyclical loading and, conversely, steady pressure is bad. Animal studies have shown that cyclical loading causes cartilage cells to divide and replenish the tissue. Conversely, continuous pressure can overload the tissue and cause more cells to die than are replenished. (It may be a cartilage problem with the heel, masquerading as PF).

If you have to stand or walk for long periods use arch supports and do 18 minutes of Circular Jogging a day (without supports).

I have never had Planter Fasciitis and haven’t had a sports (tennis) injury in 9 years.

email me here

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

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...

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 a new 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   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

Webmaster's Corner:

Once again, for 2021 - and onward - is THE useful industry calendar of audio/related events, with kudos to all who put this list together:

Separately, AV-IQ has their event page here:

For a fully comprehensve understanding of meetings taking place - both real and virtual - in this ongoing pandemic situation, you need to look at BOTH listings.



The Boston Audio Society
PO BOX 260211
Boston MA 02126

updated 10/10/21