View Full Version : noise reduction and holophonic sound


Min Lee
April 6th, 2006, 08:01 PM
I'm trying to two things. I know there are ways it can be done but with applications I don't have at the moment so I want to know if there are ways to achieve similar results with what I have before acquiring new applications. Right now I'm working on FCP 5 with Soundtrack (non-Pro version) and I just got Logic 7 express.

1) I'm trying to isolate and remove particular sounds like hums and buzzes. I know it can be done in Soundtrack Pro and Sound Forge. Here's a link to how its done on soundtrack pro: http://www.apple.com/finalcutstudio/soundtrackpro/quicktours/noisereduction.html

2) Manipulate sound like in the following link where it pans up and down. Someone said it was done in Logic Pro using surround sound.
http://www.2loop.com/hsound.html (Listen to it with headphone)

John C. Chu
April 7th, 2006, 07:23 AM
I thought that was like an binaural recording.

You just place 2 microphone elements exactly where your ears are and start recording.

Playback with headphones.

It's nice effect... would it work being played thru speakers?

Min Lee
April 7th, 2006, 01:20 PM
what kind of mics? omnidirection or shotgun? i'm gonna give that a try.

The file kind of works without headphones but you dont get the up and down effect as much.

John C. Chu
April 7th, 2006, 02:39 PM
I actually made my own binaural stereo microphone with a cheap pair of over the ear headphones from Radio Shack.

You just replace the un-solder the individual speaker element from the headphones and replace them with the microphone element which you can also buy from Radio Shack.

I think I used the PC Mount Condenser Microphone Element-- Catalog #270-090. You need two pieces at $2.59 each.

http://www.radioshack.com/search/index.jsp?kwCatId=&kw=microphone%20condenser&origkw=microphone%20condenser

You then plug the microphone stereo jack into your stereo recorder.

[Don't ask me about Phantom power or anything like that..]

You might check this out:

http://www.binaural.com/binfaq.html

The last time I used them, I wore them like headphones and started recording ambient sounds etc.

Playback of these recordings are a joy.

Jim Lafferty
April 19th, 2006, 10:56 PM
I actually made my own binaural stereo microphone with a cheap pair of over the ear headphones from Radio Shack.

You just replace the un-solder the individual speaker element from the headphones and replace them with the microphone element which you can also buy from Radio Shack.

I think I used the PC Mount Condenser Microphone Element-- Catalog #270-090. You need two pieces at $2.59 each.

http://www.radioshack.com/search/index.jsp?kwCatId=&kw=microphone%20condenser&origkw=microphone%20condenser

You then plug the microphone stereo jack into your stereo recorder.

[Don't ask me about Phantom power or anything like that..]

You might check this out:

http://www.binaural.com/binfaq.html

The last time I used them, I wore them like headphones and started recording ambient sounds etc.

Playback of these recordings are a joy.

What a great idea! If you ever happen across some work by Leighton Pierce, who is an abstract video artist and professor at Univ. of Iowa, he has a short piece with this kind of mic setup and it's awesome!

I'm going to try that out...

John C. Chu
April 20th, 2006, 07:05 AM
You can buy binaural microphones pre-made for about sixty bucks.

I haven't had a chance...but I was thinking of taking my camcorder out into the city and wearing those binuaral microphones and feeding it directly into the stereo mic input on my PDX-10 and shooting some video.

Things like jackhammers, subway cars, firetrucks should sound fun.