LISTSERV mailing list manager LISTSERV 16.0

Help for ARSCLIST Archives


ARSCLIST Archives

ARSCLIST Archives


[email protected]


View:

Message:

[

First

|

Previous

|

Next

|

Last

]

By Topic:

[

First

|

Previous

|

Next

|

Last

]

By Author:

[

First

|

Previous

|

Next

|

Last

]

Font:

Proportional Font

LISTSERV Archives

LISTSERV Archives

ARSCLIST Home

ARSCLIST Home

ARSCLIST  October 2011

ARSCLIST October 2011

Subject:

Re: Noise floor and AM X-mitter bandwidth, was: The revival of the audio cassette

From:

Bob Olhsson <[log in to unmask]>

Reply-To:

[log in to unmask]

Date:

Wed, 26 Oct 2011 22:59:55 -0500

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (109 lines)

FWIW I read that this presentation to the RCA engineers was made in Berlin. GE may be a separate matter or this might be another part of the same story. The person speaking about it was from Germany.

Bob Olhsson Audio Mastery, Nashville TN
Mastering, Audio for Picture, Mix Evaluation and Quality Control
Over 40 years making people sound better than they ever imagined!
615.562.4346 http://www.bobolhsson.com http://audiomastery.com

-----Original Message-----
From: Association for Recorded Sound Discussion List [mailto:[log in to unmask]] On Behalf Of Tom Fine
Sent: Wednesday, October 26, 2011 8:39 PM
To: [log in to unmask]
Subject: Re: [ARSCLIST] Noise floor and AM X-mitter bandwidth, was: The revival of the audio cassette

I might be wrong on this, but wasn't the Magnetofon obtained and studied by GE one of the DC bias ones? So it probably would sound, at best, like an optical sound-film recorder? Didn't the Germans change to AC bias during WWII or during the years where the US was gearing up to fight them?

In partial answer to Randy's question, some WWII era German tapes, including 2-channel stereo experiments, were released on an AES CD a while back. One thing I've wondered about -- the German material from Telefunken that Mercury and then Capitol released in the US in the early days of the LP, I think all of that was mastered for US release from German disk masters. But had any of it been recorded on tape and, if so, wwre tapes actually used to make any of the US LPs?

-- Tom Fine

----- Original Message -----
From: "Mark Durenberger" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, October 26, 2011 8:39 PM
Subject: Re: [ARSCLIST] Noise floor and AM X-mitter bandwidth, was: The revival of the audio cassette


>A couple of thoughts:
>
> 1)  Sarnoff and Paley would not have been interested in promoting a 
> technology that would allow for high-quality syndication doing an end-run around the wired networks.
>
> 2)  On the other hand, one would think they WOULD have been interested 
> in a technology that could potentially decimate program costs...since 
> it wouldn't be necessary to do a repeat show for the far time zones.
>
> Regards,
>
> Mark Durenberger
>
> --------------------------------------------------
> From: "Tom Fine" <[log in to unmask]>
> Sent: Wednesday, October 26, 2011 6:48 PM
> To: <[log in to unmask]>
> Subject: Re: [ARSCLIST] Noise floor and AM X-mitter bandwidth, was: 
> The revival of the audio cassette
>
>> I'd like to see proof of that first tale, too. It's very fashionable 
>> in recent times to slag Sarnoff. He's fallen out of favor with 
>> certain would-be historian-elites. I'm interested in facts, not 
>> agendas, so I'd want to see some RCA memos or other proof that a man 
>> being slagged for being "too" capitalistic and "ruthless" would make 
>> an anti-business and potentially self-harming move such as described 
>> below. And then there's the fact that RCA purchased many inventions over the years, and started out as a company with a file cabinet full of cross-licensed patents developed by WECO, GE and others.
>>
>> -- Tom Fine
>>
>> ----- Original Message -----
>> From: "Michael Biel" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Wednesday, October 26, 2011 7:31 PM
>> Subject: Re: [ARSCLIST] Noise floor and AM X-mitter bandwidth, was: 
>> The revival of the audio cassette
>>
>>
>> From: Bob Olhsson <[log in to unmask]>
>>
>>> Something that came out a few years ago is that RCA was offered a 
>>> worldwide license for manufacturing and distributing Magnetophons 
>>> outside of Germany during the 1930s and turned it down because Sarnoff refused to build anything using somebody else's patents!
>>
>> I don't think that RCA held the basic theremon patent, but they build 
>> it.
>>
>> I would like to see some accurately researched data on this because 
>> General Electric had been offered the machine, had one sent to them 
>> to examine (the one I own might be that machine), and they wrote a 
>> report on the machine which was not too encouraging.  They called it 
>> no better than an oversized dictating machine.  I have a copy of the 
>> report.  Was the RCA story in Friedrich Engel's definitive book?
>>
>>> Another historical tid-bit is that apparently Bell Labs developed AC 
>>> bias before anybody else but never did anything with it.
>>
>> Yes, as my friend Friedrich Engel expanded to me many years ago and 
>> wrote in his book, AC bias was discovered four separate times, first 
>> by Carlson and Carpenter in 1921, and then again in the 30s by the 
>> Japanese, the Germans, and again in the U.S. by Marvin Camras.  
>> Camras did mention to me that he indeed did not know of the others 
>> until long after his development of it -- and even the patent office 
>> did not notice the Carlson and Carpenter patent.  Most of the 
>> discoveries came about when the oscillating of malfunctioning 
>> equipment provided better recordings.
>>
>>> A high school friend was the son of Ford's lead patent attorney. He 
>>> told me that according to his dad there is all kinds of advanced 
>>> automotive technology from the first two decades of the twentieth 
>>> century that will never see the light of day because it can't be 
>>> patented and thus wouldn't provide enough competitive advantage to cover the cost of putting it into the level of mass production
>>> required to make it affordable.    Bob Olhsson Audio Mastery, Nashville TN
>>
>> The lacquer recording disc also wasn't patentable, and it was a 
>> pretty profitable device.  Nothing about the Columbia microgroove Lp 
>> was patentable.  And much to Westrex's surprise, the patents on the 
>> 45/45 stereo groove had expired long before 1957 -- and they had been 
>> held by Bell Labs since the 30s and not used.
>>
>> Mike Biel  [log in to unmask]
> 

Top of Message | Previous Page | Permalink

Advanced Options


Options

Log In

Log In

Get Password

Get Password


Search Archives

Search Archives


Subscribe or Unsubscribe

Subscribe or Unsubscribe


Archives

March 2024
February 2024
January 2024
December 2023
November 2023
October 2023
September 2023
August 2023
July 2023
June 2023
May 2023
April 2023
March 2023
February 2023
January 2023
December 2022
November 2022
October 2022
September 2022
August 2022
July 2022
June 2022
May 2022
April 2022
March 2022
February 2022
January 2022
December 2021
November 2021
October 2021
September 2021
August 2021
July 2021
June 2021
May 2021
April 2021
March 2021
February 2021
January 2021
December 2020
November 2020
October 2020
September 2020
August 2020
July 2020
June 2020
May 2020
April 2020
March 2020
February 2020
January 2020
December 2019
November 2019
October 2019
September 2019
August 2019
July 2019
June 2019
May 2019
April 2019
March 2019
February 2019
January 2019
December 2018
November 2018
October 2018
September 2018
August 2018
July 2018
June 2018
May 2018
April 2018
March 2018
February 2018
January 2018
December 2017
November 2017
October 2017
September 2017
August 2017
July 2017
June 2017
May 2017
April 2017
March 2017
February 2017
January 2017
December 2016
November 2016
October 2016
September 2016
August 2016
July 2016
June 2016
May 2016
April 2016
March 2016
February 2016
January 2016
December 2015
November 2015
October 2015
September 2015
August 2015
July 2015
June 2015
May 2015
April 2015
March 2015
February 2015
January 2015
December 2014
November 2014
October 2014
September 2014
August 2014
July 2014
June 2014
May 2014
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
December 2012
November 2012
October 2012
September 2012
August 2012
July 2012
June 2012
May 2012
April 2012
March 2012
February 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011
February 2011
January 2011
December 2010
November 2010
October 2010
September 2010
August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
August 2009
July 2009
June 2009
May 2009
April 2009
March 2009
February 2009
January 2009
December 2008
November 2008
October 2008
September 2008
August 2008
July 2008
June 2008
May 2008
April 2008
March 2008
February 2008
January 2008
December 2007
November 2007
October 2007
September 2007
August 2007
July 2007
June 2007
May 2007
April 2007
March 2007
February 2007
January 2007
December 2006
November 2006
October 2006
September 2006
August 2006
July 2006
June 2006
May 2006
April 2006
March 2006
February 2006
January 2006
December 2005
November 2005
October 2005
September 2005
August 2005
July 2005
June 2005
May 2005
April 2005
March 2005
February 2005
January 2005
December 2004
November 2004
October 2004
September 2004
August 2004
July 2004
June 2004
May 2004
April 2004
March 2004
February 2004
January 2004
December 2003
November 2003
October 2003
September 2003
August 2003
July 2003
June 2003
May 2003
April 2003
March 2003
February 2003
January 2003

ATOM RSS1 RSS2



LISTSERV.LOC.GOV

CataList Email List Search Powered by the LISTSERV Email List Manager