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ARSCLIST  April 2013

ARSCLIST April 2013

Subject:

Re: Terrific 1970 Interview with Stokowski

From:

Tom Fine <[log in to unmask]>

Reply-To:

Association for Recorded Sound Discussion List <[log in to unmask]>

Date:

Fri, 12 Apr 2013 06:30:43 -0400

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text/plain

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text/plain (34 lines)

I thought Blumlein invented a vertical-lateral stereo groove??

-- Tom Fine

----- Original Message ----- 
From: "Paul Stamler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, April 11, 2013 5:24 PM
Subject: Re: [ARSCLIST] Terrific 1970 Interview with Stokowski


> On 4/11/2013 3:15 PM, Tom Fine wrote:
>> The same expertise required to enable long distance lines of decent
>> audio quality was involved with driving a light valve for optical
>> recording and a recording stylus for electrical disk recording. Not to
>> mention dynamic microphones, loudspeakers and impedence-matching and
>> isolation transformers.
> 
> And the first practical condenser mic, invented by Western Electric's E. 
> C. Wente (who also held the patent on the dynamic mic).
> 
> Bell/Western Electric also held patents on the vacuum tube amplifier 
> (not the tube itself, but its use as an amplifier), the transistor, an 
> early limiter circuit, L-C-R mic placement for stereo recording, and, as 
> noted by others, the 45/45 stereo groove, independently developed by 
> Alan Blumlein. Nyquist, who was one of several people who developed the 
> sampling theorem that's the basis of PCM recording, was a Bell Labs 
> engineer. Johnson, who invented Johnson noise, was too. And the list 
> goes on.
> 
> Peace,
> Paul
>

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