[BC] Turntables (WAS:Achieving good S/N)

[Rich Wood]

------ At 02:21 AM 1/7/2006, Robert Orban wrote: -------

>There were two fundamentally different "classic" techniques: 
>Blumlein (AKA "coincident" or "intensity stereo") miking, which was 
>developed in Alan Blumlein in the '30s for EMI (IIRC), and the 
>"spaced triplet" technique, which was developed by Bell Labs and 
>first used for the famous "high fidelity" Philadelphia to New York 
>stereophonic transmission of the Philadelphia Orchestra under 
>Leopold Stokowsky (using L/C/R three-channel stereophony via 15 kHz 
>equalized telephone lines). I believe that this slightly pre-dated Blumlein.

I'm trying to remember if we used a third mic at WGBH for the Boston 
Symphony. It was done in conjunction with WCRB and the Transcription 
Trust. For a while when I was at WGBH we did 4 channel broadcasts 
with WCRB taking the front channels and WGBH taking the rear.

I also recall reading about the recording of the Stereophile series 
of discs. I believe they used only two.

>There is a lot of literature about stereophonic miking techniques 
>around for those who want to search it out. Suffice it to say that 
>the "classic" work in the field was done WAY before Columbia or RCA 
>Living Stereo (based on the Bell Labs techniques), both of which 
>date from the late '50s.

Which company used the binaural approach with mics positioned on a 
dummy head? From what I've read here recently, the dummy heads took over.

Rich


Rich Wood
Rich Wood Multimedia
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