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Need New Preamp Advice
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MelissaVoicer
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PostPosted: Thu May 10, 2007 11:14 am    Post subject: Reply with quote

Alas, Russ, I AM in the 3 in the back. Smile Thanks for the suggestion though....


BUT--I think I've solved it!! My audio advice person had suggested switching the impedence on the preamp to 150...to bring out a warmer sound in my voice...and that's when the noise started! So I brought it back all the way to 2500 and it's gone! I went ahead and ordered an FMR RNC and FMR RNP and I think that will help my overall sound to reflect the quality of the new RODE NTK mic...I hope! But at least while they're in transit, my audio is useable!!!! Smile Thanks everyone for all your help and support!
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TheVoiceOfBob
14th Avenue


Joined: 05 Oct 2006
Posts: 1411
Location: Pittsburgher in the Carolinas

PostPosted: Thu May 10, 2007 12:20 pm    Post subject: Reply with quote

(Picture of my work area)

I AM my computer guy!



This doesn't include the MacBook Pro over to the left and the laptop under the table.
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The Voice of Bob
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TheVoiceOfBob
14th Avenue


Joined: 05 Oct 2006
Posts: 1411
Location: Pittsburgher in the Carolinas

PostPosted: Thu May 10, 2007 12:28 pm    Post subject: Reply with quote

VO-Guy wrote:
I used the Firebox as well. Make sure your going into the quarter inch line 3 input on the back instead of the front which are one and two. Going into line three takes the preamps of the Firebox out of the picture.
Russ


OOOoooo! Russ, I missed this feature on the Firebox. Thanks!

Looking at the manual, they mention even if you use Channel 1 or 2, but use the 1/4", the microphone preamp is bypassed, but those may only be TS, where lines 3 and 4 are TRS. Is there a general recommendation on using balanced over unbalanced?
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sdelgo
Contributor IV


Joined: 04 Dec 2006
Posts: 143
Location: Milwaukee

PostPosted: Thu May 10, 2007 1:08 pm    Post subject: Reply with quote

Quote:
Is there a general recommendation on using balanced over unbalanced?


Unbalanced cables will pick up noise and interference the longer the cable runs. Keep the length under 10 feet for better results.

Balanced cables will not pick up interference as easily,BUT the source output must be balanced in order to use the balanced cables.

Steve
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MelissaVoicer
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PostPosted: Thu May 10, 2007 1:43 pm    Post subject: Reply with quote

steve, can I just do a quick Vulcan Mind Meld with you so I can learn some of the technical crap????? Pleeeeeeezeee?????? Laugh
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Gp
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PostPosted: Thu May 10, 2007 2:23 pm    Post subject: Reply with quote

Do you wonder sometimes why you even bother?
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Jeffrey Kafer
Assistant Zookeeper


Joined: 09 Dec 2006
Posts: 4931
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PostPosted: Thu May 10, 2007 2:29 pm    Post subject: Reply with quote

Another reason to use balanced: if your mic requires phantom power, you need to use the balanced XLR inputs. 1/4 inch plugs do not offer phantom power.
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Yoda117
M&M


Joined: 20 Dec 2006
Posts: 2362
Location: Philadelphia, Pennsylvania

PostPosted: Thu May 10, 2007 3:53 pm    Post subject: Reply with quote

tough to plug into the mic too...

dammit, which one of the three pins does this thing need to touch... and how am I supposed to hold it like that?
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sdelgo
Contributor IV


Joined: 04 Dec 2006
Posts: 143
Location: Milwaukee

PostPosted: Fri May 11, 2007 5:02 am    Post subject: Reply with quote

Quote:
steve, can I just do a quick Vulcan Mind Meld with you so I can learn some of the technical crap????? Pleeeeeeezeee??????


That sounds like it hurts.

Steve
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MelissaVoicer
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PostPosted: Fri May 11, 2007 5:15 am    Post subject: Reply with quote

Just lay back and relax, honey...it'll be fine! Inoccent cool
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Yoda117
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Joined: 20 Dec 2006
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Location: Philadelphia, Pennsylvania

PostPosted: Fri May 11, 2007 5:21 am    Post subject: Reply with quote

*readies the probe for Melissa*
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BenWils
The Thirteenth Floor


Joined: 08 May 2006
Posts: 1324
Location: In a Flyover State

PostPosted: Fri May 11, 2007 7:14 am    Post subject: Reply with quote

Balanced cables send signals that are both "in phase" and "out of phase"...which means it sends one signal the normal way and then flips the signal, so to speak (think sound waves). Because of this anything that is not part of the original signal, in your case, your voice, is cancelled. Noise, interference should be better cancelled because it does not match what the in phase and out of phase signals originate as. Not sure if that explained it well or not.

Phase cancellation is a weird thing. I know engineers that had been stuck with a final music mix that they did not want to replicate on their board, external compressors, processors etc. because of time (before the onset of DAWs and automated boards where you can save mixer settings) so they played the final mix, alongside the one track they wished to reduce in volume (such as a lead guitar that was too loud) and they flipped the lead guitar track out of phase and added a little to the mix, which in turn reduced the volume of the lead guitar in the final mix because of the phase cancellation. They just ran the new mix to a DAT machine and they had the quick fix for a mix that was perfect except for one instrument being a little too loud. Pretty cool huh?
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"To be really good at voiceover, you need to improve your footwork and hip snap."
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sdelgo
Contributor IV


Joined: 04 Dec 2006
Posts: 143
Location: Milwaukee

PostPosted: Fri May 11, 2007 7:54 am    Post subject: Reply with quote

To touch on what Ben said... Alot of these so called "vocal removers" work along the same premise, instruments and background vocals are recorded out of phase and the lead vocal is recorded in phase all the "removers" do is invert on side of the signal and then BAM* the background vocals and some instruments are brought to the forefront while the lead vocals are almost removed(usually you just hear the reverb that was added because the mixing engineers send the wet reverb back to the mixing board out of phase.
I know Cool Edit had a feature called "vocal cut" which inverted on side of the stereo field to achieve this effect.
Also there is a way to build an inverting op-amp circuit which does the same thing.

Steve
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Bill Campbell
DC


Joined: 09 Mar 2007
Posts: 621

PostPosted: Fri May 11, 2007 8:53 am    Post subject: Reply with quote

Meryl Streep and Al Pacino don't care about how the camera works.

Unless you are a producer, don't get too caught up in the mechanics.
Being VO-BB, concentrate on the PERFORMANCE.
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Yoda117
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Joined: 20 Dec 2006
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Location: Philadelphia, Pennsylvania

PostPosted: Fri May 11, 2007 8:58 am    Post subject: Reply with quote

yeah Bill. but this is the gear section.

but you're right. The first and foremost thing you should be worried about is your performance. I mean, Kirby Morrow does his home auditions and a fair number of spots using an ART Tube Preamp with USB to his laptop (using an RCA Ribbon mic).

I love gear, but I'll be the first to admit that if you can't give a good performance, then nothing else matters. You can have the best gear in the world and it'll still suck.
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