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ARSCLIST  December 2011

ARSCLIST December 2011

Subject:

Re: Straight Line Tracking was Stanton Turntable reviews....anyone?

From:

Corey Bailey <[log in to unmask]>

Reply-To:

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

Date:

Wed, 21 Dec 2011 23:30:08 -0800

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (76 lines)

Hi Tom,

Might you be referring to a process known here on the Left coast as 
"Swamping"?

This is a process where a mono signal is bussed to two channels. One 
channel is the master buss and it is played straight through. The 
"split" of the mono signal is compressed 20 dB or so (Stepped on!), 
brought back into the console and mixed out of phase with the original 
signal. The heavy compression of the "split" tends to push the program 
into the background noise so when the two are combined, the majority of 
the background gets canceled. The effectiveness depends on the phase 
accuracy of the limiter (or compressor or leveling amp, depending on 
what you use.) and the amount of compression used. This was a favorite 
trick of TV mixers back in the days of Mono TV. I learned of the process 
in the early 70's from a mixer by the name of Val Valentine who came out 
of the days of mixing to Mono. I've used the process successfully for 
everything from cleaning up production sound for a feature film mix to 
Forensics. For me, Swamping works best in the analog domain although you 
can get a good idea of how it works by applying the technique using any 
DAW.

Cheers!

Corey
Corey Bailey Audio Engineering


On 12/21/2011 4:04 AM, Tom Fine wrote:
> <SNIP> I think there is another method where you can put one channel 
> out of phase and mix it to a level that cancels noise the most, but I 
> haven't tried this and don't remember the details.
>
> One man's opinions, but based on years of listening to and 
> transferring mono sources.
>
> -- Tom Fine
>
>
> ----- Original Message ----- From: "Don Cox" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, December 21, 2011 5:16 AM
> Subject: Re: [ARSCLIST] Straight Line Tracking was Stanton Turntable 
> reviews....anyone?
>
>
>> On 20/12/2011, Richard L. Hess wrote:
>>
>>> Because it's a mono record?
>>>
>>> On 2011-12-20 10:55 AM, Don Cox wrote:
>>>> Yes, but why would anyone want to create a mono sum of the signals?
>>>
>> Since I first bought a stereo record player, I have always listened to
>> mono records in stereo. There never seemed to be any improvement in the
>> sound when the channels are mixed.
>>
>> And it is much easier for the brain to disregard surface noise when the
>> noise is spread across the whole width from speaker to speaker and the
>> music is located in the centre.
>>
>> In principle, mixing the channels should reduce the noise by about 
>> one decibel
>> (the noise in stereo will be 1.414 times the noise in mono), but the
>> disadvantage of losing spatial separation makes this hardly worth while.
>>
>> In my opinion.
>>
>> Regards
>> -- 
>> Don Cox
>> [log in to unmask]
>>
>
>

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