991carreradriver

Any tips on where to place the mic to limit noise associated with the windows open at high speeds? I was thinking behind the Pax seat on the floor out of the winds direct path.

Nickshu

I mounted mine on the parcel shelf under the rear window but still get wind noise. I added a fur cap on it but it did not help so I'm thinking your idea about lower down like behind the rear seats might be better. I am using a SmartycamHD with an external mic.

991carreradriver

Same set up here. I will be installing the mic this week and using it next weekend. I will let you know if my location works.

Texas RS

In my 911s, I mount the mic above the rearview mirror facing rearward with a soft rubber mount. I get good engine noise and essentially no wind noise.

991carreradriver

Thank you. That sounds like a definitive placement but not with out a PIA install.

johnsopa

Professionals typically tape a mic to the rear bumper. I've done that a few times. Several layers of masking tape sealing the mic. Sometimes put foam around the mic. No wind noise, awesome exhaust note. You may have to lower the mic sensitivity depending on your unit.

http://www.musicofsound.co.nz/blog/car-fx-part-2

http://jwsoundgroup.net/index.php?/t...ound-at-speed/

TXE36

I put a bare mic on one of the rear license plate bolts. Nearly zero wind noise if the car is going the right direction:


Unfortunately it will not pick up any inside the car commentary. For that, a mic up above the center rear view mirror works reasonably well, but not great.

Using wind screens inside a car is usually a futile effort and the reason is physics. The technical discussion is fairly involved, but the basic problem is the wind noise your hear inside the car is actually sound waves created by the turbulent air flow over the open windows and obstacles such as the roll bar and outside rear view mirrors. Foam wind screens only work on pressure fluctuations traveling as a flow - they do nothing to attenuate pressure fluctuations traveling as a wave - air pressure fluctuations traveling as a wave is sound.

Traditional windscreens only treat true wind noise - they are transparent to sound waves and that's whey they don't do any good inside the car. To eliminate wind noise inside the car you need to find a place that doesn't have much wind noise itself nor converted wind noise sound either - very tough. Behind the rear bumper is a natural null to wind noise as well as generated wind sound.

-Mike

TXE36

Same car, same track, same recording equipment different days with different mic placement:

Mic in windscreen on roll cage above rear view mirror:


Mic on rear license plate mount:


Inside works reasonably well until the wind gets it at high speeds. Inside mic also will pick up commentary.

-Mike

matt33

What mic are you guys using? I hear Shure 57 is pretty good for our purpose

Matty

ProCoach

Nickshu

I briefly checked out some of my videos last night from this weekend's DE. With the microphone down in the driver's side rear seat "butt area" (my rear seats are removed) there was great engine sound and minimal wind noise. I use velcro to hold the wires and microphone in place. Actually in this location the engine sound is better than when I had it mounted under the rear window. I did have 2 check rides from CDIs and I could not really hear us talking however. I do think I will stick with this location for now..

991carreradriver

Thank you all for the feedback, much obliged

MarcD147

I attached just above exhaust using a clip or tape. No wind noise.

Scott.

ProCoach