[SBE] Regarding Sennheiser wireless mics

[jerhil at frontier.com]

Actually, the electrical difference in phase is minuscule considering that in a cable the electrons travel at the speed of light times the Velocity Factor. Immensely faster than the speed of sound. Otherwise, I try to keep my cables of an equal length as good operating procedures. 
Where you will notice phasing problems is in the placement of the mics. There are a number of methods that you could try. I remember one SBE CBRE test question where the "correct" answer was "             ". I won't divulge it but I will say that it was patently ridiculous. There are many stereo mic methods to choose from. Your 2 main considerations are: do you have a nice stereo image? Can you maintain equal frequency response when you collapse it to mono.  
Now some advice on using 2 transmitters. There may be some frequency response issues caused by anomalies in the filtering or companding. You'll hear the problem when you switch to mono as a loss of frequency response. If you have the time, you can work around that with a mid-side matrix where one transmitter handles the L+R and the other transmitter is handling the L-R. 
-jer


Sent from my iPhone


> On May 4, 2014, at 9:53 AM, Gibson Prichard <gibson at prichard.tv> wrote:

> 

> You can easily use two wireless mics of any brand to transmit stereo, much akin to using analog discrete STL's to transport stereo audio to a transmitter site. Assuming the cables that feed the units are similar in length and that the units are the same model (or at least similar), the stereo imaging should be preserved just fine at the ENG camera end.

> 

> Those Sennheiser mics are common eBay items and can be had for a nice price, when compared to a true stereo wireless microphone system.

> 

> Best of luck,

> Gibson

> 

>> On 5/4/2014 11:12 AM, Edwin Bukont wrote:

>> John

>> 

>> Thanks for the input.  What manual was that in? I could not find in the downloaded docs that the website gives.

>> 

>> I am NOT trying to do stereo over one transmitter and receive system. I have one system, but the question is do I buy another transmit and receive system for the other channel or do I need to buy a specific stereo system. Approx $900 difference in approach.

>> 

>> Ed

>> 

>> Date: Sat, 3 May 2014 20:56:28 -0400

>> From: jon at thesolomonhouse.com

>> To: sbe at sbe.org

>> Subject: Re: [SBE] Regarding Sennheiser wireless mics

>> According to the manual 

>> 

>> Tip = mic +

>> Ring = line +

>> Sleeve = ground

> 

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