I came into this conversation talking about making a stereo recording wider; matrixing quad is a different kettle of fish. 

If you destroy one yolk, you can pick out the three yolks that are still in tact then every thing left in the pot is the fourth yolk, so you have four distinct yolks. 


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> On Sep 12, 2017, at 3:46 PM, Shai Drori <[log in to unmask]> wrote:
> That's why I loved the quad tapes. Four channels, no matrixing. BTW Logic
> steering was used later in the Dolby surround system to move mono content
> to the center channel and leave only the difference in the left and right.
> If did actually make movies sound better. Still have my decoder from the
> laserdisc days up in the attic.
> בברכה,
> שי דרורי. 0544-470-420
> מומחה לשימור ודיגיטציה של אודיו וידאו ופילם 8-35ממ
> Cheers
> Shai Drori
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>> On Tue, Sep 12, 2017 at 9:34 PM, Eero Aro <[log in to unmask]> wrote:
>> BURNHAM wrote
>>> This all sounds very complicated!
>> I agree. Quadraphonic equipment manufacturers developed complicated
>> and strange techniques when they tried to improve what already was poor
>> to begin with.
>> That's why I asked, would you try to "enhance" two channel stereo by
>> constantly
>> wiggling the channel levels or the amplifier channel balance control.
>> - - -
>> I have always liked the egg yolk comparison:
>> You have a glass bowl and four chicken eggs.
>> If you break the eggs carefully into the bowl, you can see four complete
>> yellow yolks floating in the eggwhite. So far so good.
>> You just might be able to spoon most of each yolk into four cups from the
>> bowl with a steady hand if you were lucky. This compares to discrete
>> channel quadraphonics.
>> Enter matrixing: When you put a fork into the bowl and mix the bowl
>> contents,
>> you don't see separate yolks anymore. You can try to use a spoon to collect
>> a similar amount of yolk into four different cups, but you cannot be sure
>> anymore, which yellow came from which egg. This compares with matrixing
>> four audio channels into two.
>> Eero