How to isolate voice in a 2-mic setup

Audacity Podcaster Forum.

ImageIf you require help using Audacity, please post on the forum board relevant to your operating system:
Windows
Mac OS X
GNU/Linux and Unix-like

Re: How to isolate voice in a 2-mic setup

Permanent link to this post Posted by kozikowski » Sun May 28, 2017 7:07 pm

join the twin microphones with an XLR 'Y-cable' and then run them into a top-end laptop's USB input

You're missing a step. How did you get the XLR cable into the USB input? That step can cause major problems.

Koz
kozikowski
Forum Staff
 
Posts: 37725
Joined: Thu Aug 02, 2007 5:57 pm
Location: Los Angeles
Operating System: OS X 10.9 Mavericks

Re: How to isolate voice in a 2-mic setup

Permanent link to this post Posted by kozikowski » Sun May 28, 2017 7:26 pm

we do this by mouth-to-microphone distance

Going back to the "Y" cable technique, there is no other way to set individual volumes, particularly if the performers like to talk over each other.

How are you holding the microphones up? Short booms?

Are the performers listening on headphones?

Koz
kozikowski
Forum Staff
 
Posts: 37725
Joined: Thu Aug 02, 2007 5:57 pm
Location: Los Angeles
Operating System: OS X 10.9 Mavericks

Re: How to isolate voice in a 2-mic setup

Permanent link to this post Posted by Mack Caster » Tue Jul 04, 2017 7:28 am

Since all recording situations are different, each one may require a slightly different approach. This is what I would suggest. Since you will be doing your interviews in the same room, try and do a little cheap room treatment. Heavy curtains for the windows, move to the center of the room when recording, use directional dynamic mics, make sure the room has carpet on the floors as well as furniture in the room. Purchase some acoustical foam to place around the mics. All of this will help with what is referred to as mic bleed as well as help prevent adding an artificial reverb or echo effect.

Once you do this, you should be able to apply a gate to each track to clean up any cross bleed. You will need to listen to your interview to make sure your gate settings are correct to prevent any chopping of the words being spoken. You can do quite a bit of sound treatment for your recording studio for under $100.00 and it makes a tremendous difference. You can purchase a Face Shield for your mics that cost around $125.00 each or build your own for around $50.00 for both.

The ATR 2100 is a good mic for recording several tracks in the same room. It cost $79 and you can view the specs here. I bought mine on sale at GC for $59.00 each. I purchased 4 to do the same thing your doing.
Mack Caster
Banned
 
Posts: 71
Joined: Tue Jun 27, 2017 7:23 pm
Operating System: Windows 8 or 8.1

Re: How to isolate voice in a 2-mic setup

Permanent link to this post Posted by kozikowski » Tue Jul 04, 2017 3:06 pm

I use furniture moving pads.

Image

For paid recordings, I use two pads, front and back. I have enough stuff to make an 8 foot box "studio."

One poster did it with hardware store plastic pipes jammed together.

If you're using the table mount and have trouble with furniture or floor noises, you can help that with the book/towel technique.

Image

Once you kill the room echoes and noises, you'll be stunned how much better the sound is, and how much easier it is to clean it up.

Koz
kozikowski
Forum Staff
 
Posts: 37725
Joined: Thu Aug 02, 2007 5:57 pm
Location: Los Angeles
Operating System: OS X 10.9 Mavericks

Re: How to isolate voice in a 2-mic setup

Permanent link to this post Posted by Mack Caster » Tue Jul 04, 2017 7:17 pm

kozikowski wrote:I use furniture moving pads. Once you kill the room echoes and noises, you'll be stunned how much better the sound is, and how much easier it is to clean it up.Koz


You Sir, are the reason I have promoted the "Moving Pad" idea for the last 2 years or so. You said this in another post back in 2014 or 15. Such a simple idea with dramatic results! Pay $6,000 to $12,000 and up for a dedicated sound booth or less than $200.00 DIY concerning moving pads and PVC pipe with 99.9% of the same results using your recommended system. Now, I will not credit you with coming up with this idea, BUT I do credit you with the person who turned me on to this idea. BRILLIANT!

I suggest your advice at least once a week while talking to Podcasters. I spent $30.00 for my PVC pipe and $59.00 for my moving blankets. I built it and recorded a demo then took it down. (The wife made me do it, it was her guest room). When people ask me how I came up with this idea, I simply tell them I did not, it was from some cat name Koz over on the Audacity forum. Cheers. Happy 4th!
Mack Caster
Banned
 
Posts: 71
Joined: Tue Jun 27, 2017 7:23 pm
Operating System: Windows 8 or 8.1

Re: How to isolate voice in a 2-mic setup

Permanent link to this post Posted by kozikowski » Wed Jul 05, 2017 5:09 pm

I will not credit you with coming up with this idea

Why not? I designed the original one many years ago when I had to record voice tracks and all I had was a quiet "live" room, borrowed from another division of the company. So whatever I did had to go from a pile of stuff to a sound booth in about 40 minutes and come down in the same time.

That's one piece of wood duplicated multiple times where any piece can go in any position, and they're symmetrical. You can change the height in 6" jumps to whatever you need. You don't need to "find a cross-brace." Just pick up the next piece of wood. The large holes on the ends and rope are to tie the corners of each panel together. Put pads on the floor and you don't have to worry about ceiling reflections.

I recorded many voice tracks with that setup and it got me out of trouble when I couldn't find a quiet room. I should go back to the date stamps on the photos. 2010? 2009? Putting pads on the walls is old news, but you can't do that if you have to shoot in somebody else's house. Even moving pads is not that common, although I did get that from somebody else lost in the mists of time.

That's the first known application of this technique. That's a film editing table with Audacity sitting on top. I'm shooting a voice track for an animation promotion between film cutting jobs.

Image

The PVC Studio was from an audiobook reader here on the forum. That was a take-off on my original idea. I got them to post pictures. I need to go find them and the dates.

It is remarkably effective and it folds up in a neat pile in the back of the garage.

"Koz? What are all those sticks hanging up near the ceiling."
"That's a sound studio."

!!

Koz
kozikowski
Forum Staff
 
Posts: 37725
Joined: Thu Aug 02, 2007 5:57 pm
Location: Los Angeles
Operating System: OS X 10.9 Mavericks

Re: How to isolate voice in a 2-mic setup

Permanent link to this post Posted by kozikowski » Wed Jul 05, 2017 6:01 pm

The original photos are dated October 2009, so the folding studio concept is 8 years old.

SoundStudio-Sticks-650w.jpg
SoundStudio-Sticks-650w.jpg (73.15 KiB) Viewed 327 times

SoundStudio-Pads-650w.jpg
SoundStudio-Pads-650w.jpg (62.5 KiB) Viewed 327 times

SoundStudio-RopesClamps-500T.jpg
SoundStudio-RopesClamps-500T.jpg (79.08 KiB) Viewed 327 times


Koz
kozikowski
Forum Staff
 
Posts: 37725
Joined: Thu Aug 02, 2007 5:57 pm
Location: Los Angeles
Operating System: OS X 10.9 Mavericks

Re: How to isolate voice in a 2-mic setup

Permanent link to this post Posted by kozikowski » Wed Jul 05, 2017 6:14 pm

Found another one. The assembly can be a little floppy (not designed for outdoors) so you can use one of the sticks as a cross-brace.

SoundStudio-Bracing.jpg
SoundStudio-Bracing.jpg (72.88 KiB) Viewed 327 times


The company moved into a much larger building with a soundproofed conference room, so I didn't need the moving pads so much. That's how I shot this.

Image

That's actually two sound shoots (I'm the one on the left). The soundproofing is built into the walls except for the pad on the table. Many shoots went through that room. The only downside was wrestling with actual conferences. Make nice with the room scheduling people.

Koz
kozikowski
Forum Staff
 
Posts: 37725
Joined: Thu Aug 02, 2007 5:57 pm
Location: Los Angeles
Operating System: OS X 10.9 Mavericks

Re: How to isolate voice in a 2-mic setup

Permanent link to this post Posted by kozikowski » Wed Jul 05, 2017 6:19 pm

Well, shucks. I can't find the poster who made a studio out of hardware store plastic pipes.
Still looking.

Koz
kozikowski
Forum Staff
 
Posts: 37725
Joined: Thu Aug 02, 2007 5:57 pm
Location: Los Angeles
Operating System: OS X 10.9 Mavericks

Re: How to isolate voice in a 2-mic setup

Permanent link to this post Posted by kozikowski » Wed Jul 05, 2017 6:54 pm

Got it.

viewtopic.php?p=308697#p308697

Odd. She calls it "PVC Pipe." I wonder why it didn't show up on a forum search. I got it through a painful, round-the-barn search.

She used duvets, not furniture moving pads. So that's why that didn't work.

MarieM
kozikowski
Forum Staff
 
Posts: 37725
Joined: Thu Aug 02, 2007 5:57 pm
Location: Los Angeles
Operating System: OS X 10.9 Mavericks

PreviousNext

Return to Podcasting with Audacity



Who is online

Users browsing this forum: No registered users and 3 guests