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BOSTON AUDIO SOCIETY
Meeting Notice for Wednesday, September 28, 6:45 PM
Date: Wednesday, September
28, 6:45 PM, 2016 NOTE TIME
Place: Volen Center, Brandeis
University, 415 South Street, Waltham, MA 02454 Brandeis
University NOTE PLACE !
Featured: Nikki Amichetti,
Doctoral Student in Neuroscience and Eriko Atagi,
Postdoctoral Fellow in Neuroscience
Our meeting will take place at
the Brandeis University Center for Complex Systems
Volen Center 206/MS 013.
The memory and cognition lab's
research focuses on speech comprehension and memory
for speech, with a particular focus on the hearing
changes associated with healthy aging. The Volen laboratory
conducts hearing-related research. The two talks are
entitled: From Brain to Ear: The Effects of
Hearing Loss. Age, and Effort on Everyday Language
Discourse (Amichetti), and Cochlear Implants:
What is it, Who is it for, and Does it Work?
(Atagi). Members of AES, SMPTE and ASA are, as usual,
invited to attend.
Refreshments will be served at
DRIVING DIRECTIONS TO
From the Massachusetts Turnpike
(Interstate 90) Eastbound: Take exit 14 for
I-95/Rt 128. After the toll, keep left for 95/128
North. You will make a 270 degree loop. While
on ramp, exit immediately onto exit 24 for Route
30. Bear left onto Route 30. Cross the Charles
River and turn right at first traffic light.
This is South Street, and Brandeis is two miles
ahead on left.
From the Massachusetts Turnpike
(Interstate 90) Westbound: Take exit 15 for
I-95/Rt 128 and Route 30. After the toll proceed
straight for Route 30. Turn right at the end
of the ramp, and then right again at the first
traffic light onto route 30. There is a big
green sign for Brandeis at this intersection.
Turn left at the next traffic light. Brandeis
is two miles ahead on the left.
From I-95/Route 128 Southbound:
Take exit 24 for Route 30. At end of ramp, proceed
through traffic light (across Route 30). This
is South Street, and Brandeis is two miles ahead
on the left.
From I-95/Route 128 Northbound:
Take exit 24 for Route 30. Route 30 is one of
several options at this exit, so follow signs
carefully. Turn left at the top of the ramp
onto Route 30, right at the traffic lights.
This is South Street, and Brandeis is two miles
ahead on the left.
From downtown Waltham: Take
South Street from Banks Square (junction with
Routes 20 and 117). Brandeis University is approximately
1 mile ahead on the right.
Please Park in the Theater Lot.
When entering the university
off of South Street, you will come to a gate
on the main road (Loop Road) where you have
the option to turn left or right. Turn left;
the first parking lot you see on your left is
for the admissions center and music building.
Continue past this and take your next left,
down to the Theater Lot (Lot).
The Brandeis-Roberts commuter-rail
station is very convenient to the campus. Schedule
is at http://www.mbta.com/schedules_and_maps/rail/lines/?route=FITCHBRG
The MBTA #553 bus also stops
at Brandeis-Roberts: schedule is at http://www.mbta.com/schedules_and_maps/bus/routes/?route=553
Follow the blue line on
the map from the station.
WALKING TO VOLEN -
Walk out of the Theater Lot and cross Loop Road.
Continue straight, passing to the right of the
Shapiro Campus Center (the big green building).
Stick to the pathway on the left of the tree
cluster and merge with the path heading uphill.
The Volen Center will be on your right; a lab
member will be out front for assistance.
The blue lines on the map
show walking routes from the Theater Lot and
Brandeis-Roberts station. The red arrows show
driving routes to the Theater lot.
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...
Imagine you are a recording
engineer in the late 50s, recording stereo on
magnetic tape. Then imagine you are approached
by a mysterious stranger, offering you a new
recording system with superb fidelity, no adjustments
or maintenance needed and the ability to record
long uninterrupted time. Just one catchif
the power is interrupted momentarily the recording
stops, but also everything you have recorded
up to then is lost.
Well, that seems to be the
case in many situations today.
My Tascam DR-680 8 channel
recorder has that problem. There is battery
backup but they only last about 4 hours. A recent
firmware update states that when the battery
is low, the recording is stopped (saved). Presumably
that means in the older units, low battery can
cause loss of recorded material.
My Tascam SS-R05 is a rack
unit without batteries. I found after purchase
that it does save files if the cord is pulled
while recording. So it can be done.
I decided to always keep
a set of batteries in the DR-680 even though
I use it on AC. After its being in storage a
long time I checked it and the Duracell batteries
had leaked into the battery compartment. Fortunately
the damage wasn't serious and the compartment
looks like an easy replacement if needed.
From the Sweetwater catalog:
With the Sound Devices 633, concerns about weight,
battery life, power loss, and file corruption
are history. A unique 4-way power supply and
proprietary PowerSafe technology give you maximum
runtime and safe shutdown in the event of a
total power loss. $3229
In 1967 I bought an EICO
tape recorder kit. It was the better of the
two offered by EICO and featured electrodynamic
braking for the tape reels (it was a 3 motor
deck). It was extremely gentle on the tape and
never wore out. I wondered why it wasn't universally
used in high end tape machines. On reflection
I thought what if the power failed while winding.
The tape would fly everywhere and get damaged.
In the case of a master tape it was unthinkable.
Using point to point wiring
on terminal strips, it was the quietest tape
machine I ever owned, in terms of hum.
email me here
other meetings and notices which may be of interest
to BAS members
is the eldest son of David E. Blackmer (of dbx, Kintek
and Earthworks fame) and a recording studio designer,
acoustician, master technician, electronic engineer,
musician, inventor and eclectic visionary. He is presently
in a situation where he could use our assistance as
brothers and sisters in the unique audio community that
is the BAS in the Boston area.
Michael worked with directly with
his father in the early days of both dbx and Earthworks.
Over his career he has designed and overseen construction
of numerous facilities, for example home studios for
Joe Perry and Steve Tyler of Aerosmith, home studios
for Tom Scholz of Boston, several rooms for The Castle
in Nashville, radio-education production studios for
USAID in Honduras and Bolivia, 14 rooms for WGBH Radio,
Television & Film in Boston, several rooms for
David Porter's Music Annex in CA and Antoine DeCastellan's
Monasterio studios in Equador. He was also instrumental
in the technical installation of numerous others,
among them The Cars "Synchro Sound" and
Bluejay Studios (New England's first SSL). His company
"Audio Professionals Of Boston" was one
of the top studio service organizations in the Boston
Area in the '80s and '90s. He also has been awarded
two platinum records (together representing over 14
million units sold) for his support work on the Cars
"Shake It Up" and Boston's"Third Stage".
Presently Michael is looking for
a good home; perhaps a one or two bedroom apartment,
a small studio, or a room or two in a friendly home,
with parking, as close as possible to Cambridge (though
leads anywhere in the greater Boston area would be
welcomed). He does not drink, smoke or do drugs.
If anyone reading this can be
of assistance in any way, your help will be greatly
appreciated. You may contact him at firstname.lastname@example.org,
through his page on Facebook at www.facebook.com/mfblackmer,
or at 508-808-0504.
You can also email
me with any questions. email@example.com
Thank you everyone Barry
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.
has a new article here: Extracting
Numerical Data from an Excel Trend Line
Test Bench !
by Alvin Foster ! Click
the logo: >
BAS Headphone Test Article is now available
in the BASS VOLUME 25, ISSUE 4,
on Page 17, available HERE
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
|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,
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,
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
- AND FOR CONVENIENCE
There is a posting of an ABX article, The
Digital Challenge by Stanley P. Lipshitz HERE
( A new section! Watch for a full
page coming soon ! )
NOTE: offsite links open into a new page.
BAS Members may SELL items here; anyone may BUY.
The Boston Audio Society needs individuals
who will write summaries of BAS meetings into *.pages, *.doc, or *.txt
files. We usually have audio recordings of the meetings. We pay for
your work. Ask about our bonus program for meeting-writers! Contact
David B. Hadaway (603-899-5121; firstname.lastname@example.org).
Does anyone have a schematic (or any other
info!) for any Dunlop-Clarke Dreadnaught amplifier? Email Barry at email@example.com
For sale: Audio Precision System
1 audio test system. SYS-322A, s/n SYS1-31968, IMD, BUR, W&F options,
A-weighting filter, PCI interface card, rackmounts; asking $5000. Contact
Mark Chambers firstname.lastname@example.org
For sale: Several CD storage racks,
some made by Bostonwood (www.BostonWood.com/cd.html):
Two four-shelf units (25.5"Hx17"Wx5.5"D); One four-shelf
unit (25.5"Hx24"Wx5.5"D); Two three-shelf units (19.5"Hx17"Wx6.5"D);
one home-made three-shelf unit (18"Hx14"Wx6"D). I have
attached a handle and chains to several units, making them convenient
open-top carriers. David J. Weinberg (Maryland; 301-593-3230).
Seeking a two-channel preamplifier
such as an Apt Holman, an early Hafler, or an early NAD. Must work properly.
Fred Ampel (FAmpel@KC.RR.com).
Seeking prereceord Advent cassettes,
especially Russell Sherman Beethoven and Liszt recordings, and Handel's
Messiah performed by the Handel & Haydn Society under Thomas Dunn.
David R. Moran (DRMoran@aol.com).
I am disposing of all my old copies of the
BAS Speaker, which go back to 1978, more or less complete. I am going
to recycle these with waste paper unless somebody wants them for free.
I'll even pay shipping. Doug Pomeroy Audio Restoration & Mastering
Discography of Test Records. I am
compiling a list of technical test records from all recording eras and
would like to exchange information in order to confirm, expand, correct
and add entries. Send me your list and/or other information about test
records and I will send you my discography, which has nearly 200 entries
to date. I am interested in commercially released records, as well as
discs intended primarily for in-house use by audio engineers, broadcasters
and for other special applications. I am generally excluding demonstration
discs of the "Super Stereo bouncing ping-pong ball" type unless
they include at least some tracks of a technical nature, such as frequency
response and tracking tests, etc. Nicholas Starin, Portland Oregon,
Nashville AES Test CD. (www.AESNashville.org;
click the small round symbol where it says "Click here for more
info:" to download the four-page description and track list. Use
the link on the website under <Products> to send an email for
pricing and availability.) From the website: "Assembled 'by engineers,
for engineers' after a survey of the needs of a broad cross-section
of working audio pros, the disc features 71 tracks of test signals ranging
from level calibration tones, noise signals, third-octave tones, polarity
and digital meter calibration pulses, bandpassed noise and swept sinewaves.
Additional tracks include dry-recorded kick and snare drums, acoustic
guitar and piano along with spoken word and a cappella male and female
vocals. A data area on the disc features BPM charts, Excel-based calculators
and other bonus material. The CD booklet includes tutorial information
on using the test disc."
For sale: Three Denon DR-M34HR cassette
decks ($500srp) with three heads and live monitoring of the recording,
dual Dolby B/C and Dolby HX Pro circuitry. Handles normal, chrome and
metal-tape cassettes. Highly regarded in 1988. Gasparo Records used
them as duplicators. In good shape. Data at www.VintageCassette.com/denon/dr-m34hr.
$125 ea+shipping. Contact David B. Hadaway. email@example.com.
For sale: Arcam Solo Movie 5.1 (www.Arcam.co.uk/products,solo,Movie-Systems,SoloMovie51.htm;
$4500srp) The manual is downloadable from the Arcam website. I do not
have original packaging. $1000+shipping, which will be calculated once
destination is determined. Funds transfer or cash only; no checks. Fred
For sale. Two Tannoy HPD 315 speakers,
made in the mid-1970s, woofers might need refoaming. Steven Weiner (SDWeiner@ATT.net;
818-865-0601; Thousand Oaks, CA) is asking $500+s/h. [I have seen a
photo; the cabinets and grill look to be close to mint condition. This
ad was placed at the request of member Randy Hoffner. DJW]
Seeking: Soundfield Mark IV microphone.
Jim Mastracco (James.Mastracco@Verizon.net).
Laserdiscs for sale by David J.
Weinberg (301-593-3230; WeinbergDJ@BostonAudioSociety.org)
Four have Dolby Digital 5.1 soundtrack. Nine have DTS5.1 soundtrack.
Make offer for all or selected items.
||CLV / CAV?
|Blade Runner (Director's
Anniversary Director's Cut)
|The Hunt for Red
|In The Mouth Of
|Raiders of the Lost
|Raiders of the Lost
|Star Wars: Episode
1 - A Phantom Menace
|Who Framed Roger
Own a movie theater sound system! For sale,
top-of-the-line High Performance Stereo HPS-4000-XL screen speaker systems.
Three (left, center, right) HPS model 545-4 speaker systems (www.HPS4000.com/pages/fivefortyfive_.html)
and two HPS model 545-W subwoofer speaker systems (www.HPS4000.com/pages/545_w_.html).
All in perfect working order. The speakers are not light, but consist
of modules that can be lifted by two moderately strong men. Truck delivery
only, or come pick up. Make me an offer. David J. Weinberg (301-593-3230;
Most units come with user manuals (some also
with service manuals), remotes and cartons, as applicable. Make offer:
- ReplayTV 2020 with aftermarket larger
disk drive. Includes lifetime electronic program guide service.
- Faroudja VP400A video quadrupler. Upscales
NTSC video to 960 progressively scanned lines for a front or rear
CRT projector. Generates great image on my big screen. I don't need
it because I'm modifying my video system.
- Runco 980Ultra CRT projector (original
packing, user and service manuals).
- Vutec concave high-gain silvered screen.
8' wide, 16:9 aspect ratio, with wallmount brackets. Silvered surface
makes it appropriate for 3D projection, as the high gain overcomes
the substantial light loss caused by the various consumer 3D projection
technologies, and the curved shape can deliver a wide viewing angle
with little hotspotting.
- Lexicon DC1 surround processor, with all
- Panasonic RP-91D DVD player with JVB Digital
- Sony DVP-NS755V SACD (multichannel and
stereo), DVD, etc., progressive-scan output. $250srp.
- Tektronix D11 rackmount single-beam storage
oscilloscope with 5A15N vertical amp and 5B10N time-base/amplifier.
- Tektronix 5111 rackmount single-beam storage
oscilloscope with two 5A18 vertical amps and 5B10N time-base/amplifier.
- Teac AN-180 external dual Dolby B processor.
Simultaneous stereo record and playback.
- Pioneer CT-F4242 cassette deck, in excellent
- Garrard RC88 turntable with Shure M3D cartridge,
in excellent condition.
- Sony XM-5046 car audio amp, 4x50W into
again, for 2016 - and on through 2020 (!) here is THE useful
industry calendar of audio/related events, with kudos to any
and all who put this list together: www.stiernberg.com/industry-calendar