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and other Notices
Note: We decided to join the
AES as guests for this meeting. There will be no other
BAS meeting this month. Usually there is coffee at
Date: Tuesday, February 16,
7 PM, 2016
Place: Devlin Hall Room
026, Boston College
Guests: Eric Blackmer, Earthworks
Its About Time
is a presentation explaining David Blackmers
model of human hearing, which includes the concept
that human hearing employs a dual mechanism with significant
acuity in the time domain. The principles behind this
model are the basis of Earthworks product line.
Eric Blackmer has been involved
in the audio industry for many years. His experience
ranges from music to recording and live sound, to
studio building and sales. He is currently employed
at Earthworks Audio where he routinely engages in
sales, education and translation.
Directions to Devlin
Hall, Boston College:
FROM POINTS NORTH AND SOUTH:
Take Interstate 95 (Route 128) to Exit 24 (Route
30). Proceed east on Route 30, also known as
Commonwealth Avenue, and follow for about five
miles to Boston College.
FROM POINTS WEST: Take the
Massachusetts Turnpike (Route 90) to Exit 17.
At the first set of lights after the exit ramp,
take a right onto Centre Street. Follow Centre
Street to the fourth set of lights, and turn
left onto Commonwealth Avenue. Follow Commonwealth
Avenue 1-1/2 miles to Boston College.
FROM DOWNTOWN BOSTON: Take
the Massachusetts Turnpike (Route 90) to Exit
17. Take a left over the bridge after passing
the Sheraton Tara Hotel. Take the first right
onto Centre Street. Follow above directions
from Centre Street.
PUBLIC TRANSPORTATION: The
Boston College branch of the MBTAs Green
Line (B) ends at the Boston-Newton boundary
on Commonwealth Avenue
Devlin Hall is located in
the center of the Chestnut
Hill Campus. Parking is available in
the Commonwealth Ave Garage for a minimal price.
The entrance for Room 026 is on the right side
of Devlin Hall. Parking on Commonwealth Ave
is FREE! PDF map HERE
1. V34N4 of the BASS has
been published. It features our trip to the
Boston Symphony archives with Bridget Carr presenting,
written by John S. Allen. Also reports on CEDIA
and AES and others by David Weinberg, Kenneth
Wacks and Jim Buchanan.
2. This year buy a
TV that's really better by Geoffrey Fowler
discusses high dynamic range or HDR TV. He says
there's finally a TV technology that's instantly
obvious to the naked eye. It has a brighter
picture (10 times the output) for a wider range
from dark to white. Also the color rendition
has been improved. It doesn't take much more
bandwidth to transmit to your home. Samsung
has announced a player for both 4K and HDR.WSJ
email me here
12/22/42 - 11/21/15
- A Remembrance
In 1971 I had the pleasure
of working at Tonus in Newton Highlands (later
ARP Synthesizers) where I met Dennis Colin who
was the chief electronics development engineer
(and many other titles) of the ARP Synthesizer.
We quickly became friends as I was rather astonished
by the way this fellow simply knew silicon.
But to call Dennis an engineer is a huge understatement:
the way a great artist understands color and
a great chef understands the properties of food,
Dennis simply knew silicon. I was almost
immediately convinced he was in there, on a
molecular level, discussing transit paths with
the electrons. Every minute spent with Dennis
was an honor, an education, and a foray into
mystical realms of electronics, sound, synthesis,
time, dimensions, the universe, and more.
I lost contact with Dennis
after I moved to California, but we were re-connected
around 2005 when I found him on the phone one
day. I could go on for pages praising his audio
inventions and unique creativity.
His daughter Melissa has
arranged a funeral service at MIT on Friday,
Dec. 18. I know that Dennis would be honored
to have guests from the audio universe that
You can read more about
the service here: beautifultribute.com/dennis-philip-colin/
And here's a note from
daughter Melissa: "Those attending my dad's
memorial service will be in for a real treat.
We're setting up a few of his inventions: the
ARP 2600 (one of the very first prototypes made);
the Musichrome Color Wheel; the Hyperphase effects
guitar pedal; the 500 watt tube amp. Also worth
noting is you will get to meet my dad's best
friend Ken, who happens to be the very first
employee Alan R. Pearlman (Tonus, Inc. [later
renamed ARP Instruments) hired."
And this! JUST in time
to honor Dennis Colin!
other meetings and notices which may be of interest
to BAS members
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
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; 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