Ubuntu installers?

gene heskett gheskett at shentel.net
Thu Jan 12 15:05:42 UTC 2023


On 1/12/23 01:22, Ralf Mardorf via ubuntu-users wrote:
> On Wed, 2023-01-11 at 23:57 +0100, Liam Proven wrote:
>> I generally can't tell mono from stereo except through headphones
> 
> Hi,
> 
> a simplified explanation for this phenomenon.
> 
> One of my microphones is a Rode NT4, a "Stereo microphone with
> 90 ° X / Y stereo array". Even with headphones on, some of those stereo
> recordings appear as if they are mono recordings. If you pan the two
> channels from left and right to the center you will notice the
> difference. A stereo recording, that appears as if it is a mono
> recording does sound way livelier, with the two channels separated to
> full left and right. The reason for this type of stereo recording is,
> that if both channels are panned to the center, so that the two signals
> become a single mono signal, it doesn't cause much phase problems. IOW
> such a 90 ° X / Y stereo array recording is a mono compatible stereo
> recording and can be played by a stereo system, as well as a small mono
> radio. Very noticeable widely spread stereo signals sound interesting in
> stereo, but usually sound muddy in mono. Parts of the signal could be
> completely missing due to phase cancellation.
> 
> Here somebody demonstrates phase cancellation. What he says about
> microphones is incomplete. This effect does usually not happen that
> noticeable, when recording with a 90 ° X / Y stereo array:
> https://www.youtube.com/watch?v=NaK6GrLg4cE&t=140s
> 
> Instead of using the 90 ° X / Y stereo array, another way to do a mono
> compatible stereo recording is to record the middle and just one side,
> but that is a topic in itself.
> 
> In a nutshell. You can usually no longer listen to clearly perceptible
> stereo recordings on the mono radio, which is why professionals often
> make subtle stereo recordings. Less is more!
> 
> Regards,
> Ralf
> 
That was school teaching time Ralf, and something a lot of audio folks 
don't get, concentrating on putting mic's all over and controlling the 
stereo with the mixing board. Its not the same by a heck of a long row 
of apple trees. Keep on teaching.

Cheers, Gene Heskett.
-- 
"There are four boxes to be used in defense of liberty:
  soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
  - Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/>




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