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-   -   Buying microphones in pairs (https://www.dvinfo.net/forum/all-things-audio/498917-buying-microphones-pairs.html)

Steve House August 1st, 2011 07:10 AM
Re: Buying microphones in pairs
 
Quote:
Originally Posted by Tom Morrow (Post 1671545)
Here's why I originally posted about this.

I'm thinking of getting a second G3 wireless setup, and I'm deciding whether to go with the cardioid lav version for variety, or the omni lav version for consistency and redundancy. It's actually somewhat of an academic question as I will probably use Rode lav microphone(s) instead of the Sennheiser lav mics that come with the G3.

I'm thinking the cardioid mic might come in handy in odd cases, but if I end up miking say two people doing an interview and for some reason only have the Senn lav mics, I might want them to all the be the same for consistency.

I'm leaning towards getting the cardioid for variety even though I may never use it.
You may find that there is a irritating change in the timbre of the speech as the subject moves their head, taking them slightly off mic and back on again, with a cardioid lav.

Tom Morrow August 1st, 2011 09:58 AM
Re: Buying microphones in pairs
 
My understanding of conventional wisdom is that omni lavs are generally best in controlled environments, but that there are odd cases where a cardioid lav can be useful, like in a noisy environment, say a trade show interview where for some reason a handheld mic is not appropriate. Other possible uses would be using the wireless lav as a plant mic to record specific environmental noises or walla, or micing instruments, Or I might use it when I place a wireless lav at a lectern that already has a PA mic.

But for me the question is now moot, as I just ordered another G3 with omn lav, because that happened to be what was in the best deal I could find.

Karl Winkler August 3rd, 2011 08:22 AM
Re: Buying microphones in pairs
 
Quote:
Originally Posted by Tom Morrow (Post 1671661)
My understanding of conventional wisdom is that omni lavs are generally best in controlled environments, but that there are odd cases where a cardioid lav can be useful, like in a noisy environment, say a trade show interview where for some reason a handheld mic is not appropriate. Other possible uses would be using the wireless lav as a plant mic to record specific environmental noises or walla, or micing instruments, Or I might use it when I place a wireless lav at a lectern that already has a PA mic.
The trouble with cardioid lav mics is that placement becomes more critical than with omnis, and wind/handling noise is increased with a directional microphone. Proximity effect is one reason placement is so tough - cardioid lavs have rolled off bass and are designed to be used a certain distance from the source.

I've found that an omni lav almost always works better than a directional lav - with very few exceptions.

Dan Ostroff August 3rd, 2011 11:07 AM
Re: Buying microphones in pairs
 
Quote:
Originally Posted by Tom Morrow (Post 1671661)
My understanding of conventional wisdom is that omni lavs are generally best in controlled environments, but that there are odd cases where a cardioid lav can be useful, like in a noisy environment, say a trade show interview where for some reason a handheld mic is not appropriate. Other possible uses would be using the wireless lav as a plant mic to record specific environmental noises or walla, or micing instruments, Or I might use it when I place a wireless lav at a lectern that already has a PA mic.

But for me the question is now moot, as I just ordered another G3 with omn lav, because that happened to be what was in the best deal I could find.
Here's an interesting piece recorded by Thom Shafer for ABC, noisy factory, using Senn MKE 104 cardioid lavaliers. Excellent work and I assume the reason it would be nice to have some of these on hand.

Made In America

I'll be interested to see how the new Countryman hypercardioid B2D lav will perform (B2D Directional Lavalier - Countryman Associates, Inc.).

Here's a sample in a noisy environment:

John Willett August 3rd, 2011 12:23 PM
Re: Buying microphones in pairs
 
Quote:
Originally Posted by Tom Morrow (Post 1671661)
My understanding of conventional wisdom is that omni lavs are generally best in controlled environments, but that there are odd cases where a cardioid lav can be useful, like in a noisy environment, say a trade show interview where for some reason a handheld mic is not appropriate. Other possible uses would be using the wireless lav as a plant mic to record specific environmental noises or walla, or micing instruments, Or I might use it when I place a wireless lav at a lectern that already has a PA mic.

But for me the question is now moot, as I just ordered another G3 with omn lav, because that happened to be what was in the best deal I could find.
It is very very rare where a directional lav. is better than an omni one.

You get more drop-out with a directional due to head movement and the back of the mic. is normally pointing towards the body where it does not do much good at all.

An omni, with no proximity effect, can be moved closer without problems - and an omni 10cm gfrom the mouth has the same characteristics as a cardioid at 17cm when it comes to feedback rejection.

No contest - omni wins all the time.


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