BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > M3 (E90 / E92 / E93) > Sponsor M3 Project Cars Showcase
 
GT Haus
Post Reply
 
Thread Tools Search this Thread
      06-21-2013, 04:33 AM   #45
insane79
Major
 
insane79's Avatar
 
Drives: E90 lci
Join Date: Apr 2012
Location: Earth

Posts: 1,083
iTrader: (0)

sounds like a UFO..
insane79 is offline   No_Country
0
Reply With Quote
      06-21-2013, 06:51 AM   #46
THE-FN-MAN
Captain
 
Drives: E92 M3 x2
Join Date: Feb 2012
Location: the wood

Posts: 807
iTrader: (0)

Amazing vid man, I gotta get that mic and video set up!
THE-FN-MAN is offline  
0
Reply With Quote
      06-21-2013, 07:59 AM   #47
avsbmw
Captain
 
Drives: 07 Z4MC
Join Date: Jul 2009
Location: Hampton Roads VA

Posts: 810
iTrader: (1)

sounds so tough! looks like a fun track!
avsbmw is offline  
0
Reply With Quote
      06-21-2013, 08:09 AM   #48
MikeM5
 
MikeM5's Avatar
 
Drives: E90 M3
Join Date: Apr 2007
Location: Chicago, IL

Posts: 907
iTrader: (6)

this was a great way to wake up this morning! thanks for sharing and kudos on a great run!
__________________

UNSCENE MEDIA GROUP
08 E90 M3 | 13 ZC6 BRZ-L
MikeM5 is offline   Philippines
0
Reply With Quote
      06-21-2013, 08:27 AM   #49
alexmtl_135i
First Lieutenant
 
Drives: 2013 C63 Coupe P31
Join Date: Oct 2011
Location: Montreal, Canada

Posts: 367
iTrader: (0)

Quote:
Originally Posted by dogbone View Post
Hi All.

Thanks for the nice comments!

First, I need to give credit to M3post member Ti-Jean. He was running this sound recording setup, and I duplicated it. EAS ran the wires for me. It's all totally hidden, and the jack that plugs into the GoPro appears under the driver's side headlight in the vent. This is great because you can record audio from the exhaust and record video from the front all in a single pass to one device, so you don't have to go through the extra steps of re-syncronizing the sound to the video later. That's a painful process.

So, the initial setup takes a bit of work. But using it is very very easy. The microphone just lives in the trunk under the fabric flap. I pull it out, wrap it around the tow hook and tape it to the inside of the bumper. It's pretty well protected from the wind, and still gets great exhaust sound. In the first pic below in Turn 2 of Sonoma, you can see the black wire on the bumper going down to the tow hook.
Thanks for sharing this and congrats for the car !

The setup is interesting and I will have a very similar setup during my upcoming road trip. What microphone did you use? Did you use any wind protection on your mic ?
If you have pics of the mic on your bumper, that would be great too. I haven't yet done testing for my setup so that could save me time!
alexmtl_135i is offline  
0
Reply With Quote
      06-21-2013, 09:33 AM   #50
dogbone
Second Lieutenant
 
dogbone's Avatar
 
Drives: '09 E90 M3 - IB
Join Date: Feb 2012
Location: 93 million miles from the Sun

Posts: 260
iTrader: (0)

Quote:
Originally Posted by alexmtl_135i View Post
Thanks for sharing this and congrats for the car !

What microphone did you use? Did you use any wind protection on your mic ?
If you have pics of the mic on your bumper, that would be great too. I haven't yet done testing for my setup so that could save me time!
Thanks!

(I should mention that I do sound and music for a living so the concept of audio recording is not new to me, but I never bothered with making better recordings until I heard how cool M3post member Ti-Jean's videos sounded.)

The microphone is: Audio-Technica ATR-3350 Lavalier Omnidirectional Condenser Microphone. It's $21 at Amazon right now.

Running the wire from the trunk to the front is the harder part. If you want to do it right, it needs to go through the hole in the firewall behind the glovebox. This is a fair amount of work because the ECU is on the other side.

Here's a few pieces of advice on the setup:

-The microphone's wire is very long. You might be tempted to start the run from the trunk to the front with the microphone wire. Don't do that. Instead, run extender wires the whole way from the trunk to the front. And then plug the microphone into the extender in the trunk. Reason: if the microphone gets damaged, or you want to try a different microphone, all you need to do is unplug in the trunk, instead of pulling wires. Also, let's say you wanted to mount the camera in a different spot besides where the extension was run at the front bumper----let's say the side window---you could unplug the microphone jack from the extender in the trunk and then run it through the rear seats and out the window and plug the mic directly into the camera on the side window. The mic's cable is long enough to do that.

-Use stereo (tip/ring/sleeve) extenders. That way you have the option of recording mono or stereo. My GoPro2 can only record mono. But a GoPro3 can record stereo. (I haven't moved to a GoPro3 because I keep hearing that battery life is atrocious.) But my setup is ready to record stereo.

-If you want to be really adventurous, and make a stereo signal from two mono microphones, you can get this device (search Amazon): HOSA Stereo 3.5 mm Phone Male - Two Mono 1-Tip and 1-Ring 3.5MM Female - 6-Inch. This will combine two mono sound sources from two separate microphones into a stereo signal and feed it to a stereo recording device. I have another Audio Technica mic waiting for the day that I can record stereo with my video camera. Please note, this device is QUITE different than just a regular headphone splitter that looks the same. A headphone splitter does NOT combine two mono signals into a stereo signal.

-The microphone has it's own battery source (LR44) for it's amplifier. This will live in the trunk and you need to turn it on at the beginning of the day, and off at the end of the day. Ti-Jean says he's gotten 7 track days out of the LR44 battery. I switch it at 5 days. The problem is that with the AudioTechnica, there's no light on it to let you know if it's actually on or not. So, I'm switching at 5 days.

-DON'T FORGET TO TURN THE MICROPHONE ON IN THE MORNING!!!!! (don't forget to turn it off at the end of the day too) There's a few of us with this setup now, and sometimes, someone forgets to turn the microphone on. If that happens, you get ZERO sound. Since I'm a sound guy, I'm paranoid about stuff like that.

-The microphone comes with a little foam windscreen. It works pretty well. I make sure that when I'm taping the microphone inside the tow hook hole, I have the tape holding the foam windscreen so it doesn't fall off.

-As far as microphone placement, the biggest thing you want to do is keep the microphone away from wind as much as possible. It's so loud back there near the exhaust, it doesn't really matter where you put the microphone in terms of catching the exhaust sound. Ti-Jean found that inside the rear bumper was the best-shielded spot from the wind. I agree. Plus I think it's good as far as dirt goes too. So I just bring the wire out of the trunk, wrap it around the tow hook three times, put a fairly sticky tape on it (including the windscreen)---the blue painter's tape is not sticky enough---duct tape works, and then tape it to the left-most part of the inside of the hole---the 9 o'clock position---on the inside of the bumper. (see pic below)

-I wouldn't run this microphone in the rain.
Attached Images
 
dogbone is offline  
0
Reply With Quote
      06-21-2013, 10:02 AM   #51
alexmtl_135i
First Lieutenant
 
Drives: 2013 C63 Coupe P31
Join Date: Oct 2011
Location: Montreal, Canada

Posts: 367
iTrader: (0)

Quote:
Originally Posted by dogbone View Post
Thanks!

(I should mention that I do sound and music for a living so the concept of audio recording is not new to me, but I never bothered with making better recordings until I heard how cool M3post member Ti-Jean's videos sounded.)

The microphone is: Audio-Technica ATR-3350 Lavalier Omnidirectional Condenser Microphone. It's $21 at Amazon right now.

Running the wire from the trunk to the front is the harder part. If you want to do it right, it needs to go through the hole in the firewall behind the glovebox. This is a fair amount of work because the ECU is on the other side.

Here's a few pieces of advice on the setup:

-The microphone's wire is very long. You might be tempted to start the run from the trunk to the front with the microphone wire. Don't do that. Instead, run extender wires the whole way from the trunk to the front. And then plug the microphone into the extender in the trunk. Reason: if the microphone gets damaged, or you want to try a different microphone, all you need to do is unplug in the trunk, instead of pulling wires. Also, let's say you wanted to mount the camera in a different spot besides where the extension was run at the front bumper----let's say the side window---you could unplug the microphone jack from the extender in the trunk and then run it through the rear seats and out the window and plug the mic directly into the camera on the side window. The mic's cable is long enough to do that.

-Use stereo (tip/ring/sleeve) extenders. That way you have the option of recording mono or stereo. My GoPro2 can only record mono. But a GoPro3 can record stereo. (I haven't moved to a GoPro3 because I keep hearing that battery life is atrocious.) But my setup is ready to record stereo.

-If you want to be really adventurous, and make a stereo signal from two mono microphones, you can get this device (search Amazon): HOSA Stereo 3.5 mm Phone Male - Two Mono 1-Tip and 1-Ring 3.5MM Female - 6-Inch. This will combine two mono sound sources from two separate microphones into a stereo signal and feed it to a stereo recording device. I have another Audio Technica mic waiting for the day that I can record stereo with my video camera. Please note, this device is QUITE different than just a regular headphone splitter that looks the same. A headphone splitter does NOT combine two mono signals into a stereo signal.

-The microphone has it's own battery source (LR44) for it's amplifier. This will live in the trunk and you need to turn it on at the beginning of the day, and off at the end of the day. Ti-Jean says he's gotten 7 track days out of the LR44 battery. I switch it at 5 days. The problem is that with the AudioTechnica, there's no light on it to let you know if it's actually on or not. So, I'm switching at 5 days.

-DON'T FORGET TO TURN THE MICROPHONE ON IN THE MORNING!!!!! (don't forget to turn it off at the end of the day too) There's a few of us with this setup now, and sometimes, someone forgets to turn the microphone on. If that happens, you get ZERO sound. Since I'm a sound guy, I'm paranoid about stuff like that.

-The microphone comes with a little foam windscreen. It works pretty well. I make sure that when I'm taping the microphone inside the tow hook hole, I have the tape holding the foam windscreen so it doesn't fall off.

-As far as microphone placement, the biggest thing you want to do is keep the microphone away from wind as much as possible. It's so loud back there near the exhaust, it doesn't really matter where you put the microphone in terms of catching the exhaust sound. Ti-Jean found that inside the rear bumper was the best-shielded spot from the wind. I agree. Plus I think it's good as far as dirt goes too. So I just bring the wire out of the trunk, wrap it around the tow hook three times, put a fairly sticky tape on it (including the windscreen)---the blue painter's tape is not sticky enough---duct tape works, and then tape it to the left-most part of the inside of the hole---the 9 o'clock position---on the inside of the bumper. (see pic below)

-I wouldn't run this microphone in the rain.
Wow, thanks a lot for the very detailed answer. I just bought myself a Audio-Technica PRO-24CM + windcutter for that purpose, I didn't know the smaller ATR3350 could do such a good job at recording the exhaust!

Thanks for the tips about battery life, I'll have the same problem with my mic too :P.

The location of your mic is actually really smart . I don't think mine would fit in there, but worse case scenario I can buy another 24$ ATR3350 and put it there. The only thing is that on my 135 the exhaust is on the left and the tow hook is on the right, but it may be loud enough!
alexmtl_135i is offline  
0
Reply With Quote
      06-21-2013, 11:37 AM   #52
dogbone
Second Lieutenant
 
dogbone's Avatar
 
Drives: '09 E90 M3 - IB
Join Date: Feb 2012
Location: 93 million miles from the Sun

Posts: 260
iTrader: (0)

Quote:
Originally Posted by alexmtl_135i View Post
Wow, thanks a lot for the very detailed answer. I just bought myself a Audio-Technica PRO-24CM + windcutter for that purpose, I didn't know the smaller ATR3350 could do such a good job at recording the exhaust!

Thanks for the tips about battery life, I'll have the same problem with my mic too :P.

The location of your mic is actually really smart . I don't think mine would fit in there, but worse case scenario I can buy another 24$ ATR3350 and put it there. The only thing is that on my 135 the exhaust is on the left and the tow hook is on the right, but it may be loud enough!
Yeah, it won't matter where the mic is back there in terms of it's ability to capture the exhaust sound. If anything, you want a little distance because it is REALLY loud back there. As it is, you're going to be banging into the audio limiters to prevent distortion. Keeping wind away is the most important thing.

In this video, I'm at almost 140mph at the start line and the sound is still viable. It's actually pretty intense.



I wouldn't use such a large microphone like the 24CM. It's just too damn big. The LAST thing you want is that thing coming loose and flapping around. Plus it will stick out like a sore thumb in pictures.

And do you really want to tape the crap out of that thing to your bumper? I would think cleaning up the tape would stink---unless you figure a way to suction cup it back there. But I would still worry about it. It gets damn hot back there. My opinion is it would be better to have either a stereo lavalier or two ATR3350's along with that y-cable I noted in my previous post and stick it in the tow hole. The audio limiters might engage a little differently slightly affecting the stereo field, but it's going to be so dynamic back there with exhaust and wind and tire noises that I think the sound would be pretty good. Plus you could experiment and choose where to put each one controlling the stereo field------I mean if you really want to be geeking out with this stuff.....
dogbone is offline  
0
Reply With Quote
      06-21-2013, 11:46 AM   #53
Ti-Jean
Private First Class
 
Ti-Jean's Avatar
 
Drives: 08 E90 M3 DCT
Join Date: May 2011
Location: SoCal

Posts: 146
iTrader: (0)

Garage List
2008 BMW E90 M3  [4.50]
Quote:
Originally Posted by dogbone View Post
First, I need to give credit to M3post member Ti-Jean. He was running this sound recording setup, and I duplicated it.
Still running the setup and like it more than ever You know I'm trying to replicate this setup on my other track car... still some tweaking to do. That setup on the M3 is the best mod you can do if you track the car and cheap too The track videos are so much more fun to watch ... and more importantly ... to listen

Great video
Ti-Jean is offline  
0
Reply With Quote
      06-21-2013, 11:46 AM   #54
monkawekrue
Brigadier General
 
Drives: e46 M3 AW/f25 X3 AW
Join Date: Aug 2010
Location: CENTEX

Posts: 3,098
iTrader: (2)

Garage List
arty 0030:
__________________
monkawekrue is offline   United_States
0
Reply With Quote
      06-21-2013, 11:58 AM   #55
John Tanglewood
Colonel
 
John Tanglewood's Avatar
 
Drives: 11' M3 Coupe AW/FR (for sale)
Join Date: Dec 2009
Location: Stamford, CT

Posts: 2,072
iTrader: (8)

that made me moist.
__________________

My M3 is for sale here
John Tanglewood is offline  
0
Reply With Quote
      06-21-2013, 03:28 PM   #56
Kriston
The Ultimate Driving Machine
 
Kriston's Avatar
 
Drives: Like Donkey Kong on Roids
Join Date: Mar 2009
Location: Toronto

Posts: 2,237
iTrader: (4)

Wonderful audio!

I hope this goes to show that you do not necessarily need an extremely expensive exhaust on these cars to sound great and gain a few extra ponies. A nice x pipe and your good to go!
__________________
CHUCK NORRIS ON WHEELS

Kriston is offline   Canada
0
Reply With Quote
      06-21-2013, 03:33 PM   #57
hyperboost
Lieutenant
 
hyperboost's Avatar
 
Drives: M3, 535XI Msport
Join Date: Mar 2010
Location: Boston

Posts: 586
iTrader: (0)

Nice vid!
hyperboost is offline  
0
Reply With Quote
      06-21-2013, 03:47 PM   #58
k-lo
Private First Class
 
k-lo's Avatar
 
Drives: 2011 M3 ZCP, 2012 X5 35d
Join Date: Aug 2012
Location: Las Vegas

Posts: 184
iTrader: (0)

audio doesn't get any better than that!
k-lo is offline  
0
Reply With Quote
      06-21-2013, 03:58 PM   #59
Carrozzeria
BimmerPost Supporting Vendor

 
Carrozzeria's Avatar
 
Drives: BMW E92 M3 / BMW E46 M3
Join Date: Feb 2013
Location: Kirkland, WA

Posts: 510
iTrader: (0)

Awesome video, sounds great. Is it bad all I could picture was what I do on each section in Forza?
Carrozzeria is offline  
0
Reply With Quote
      06-21-2013, 03:58 PM   #60
biglare
Brigadier General
 
biglare's Avatar
 
Drives: ?
Join Date: May 2008
Location: ?

Posts: 3,084
iTrader: (3)

Cool Video! Sounds Sick!
__________________
biglare is offline   United_States
0
Reply With Quote
      06-21-2013, 06:09 PM   #61
alexmtl_135i
First Lieutenant
 
Drives: 2013 C63 Coupe P31
Join Date: Oct 2011
Location: Montreal, Canada

Posts: 367
iTrader: (0)

Quote:
Originally Posted by dogbone View Post
Yeah, it won't matter where the mic is back there in terms of it's ability to capture the exhaust sound. If anything, you want a little distance because it is REALLY loud back there. As it is, you're going to be banging into the audio limiters to prevent distortion. Keeping wind away is the most important thing.

In this video, I'm at almost 140mph at the start line and the sound is still viable. It's actually pretty intense.



I wouldn't use such a large microphone like the 24CM. It's just too damn big. The LAST thing you want is that thing coming loose and flapping around. Plus it will stick out like a sore thumb in pictures.

And do you really want to tape the crap out of that thing to your bumper? I would think cleaning up the tape would stink---unless you figure a way to suction cup it back there. But I would still worry about it. It gets damn hot back there. My opinion is it would be better to have either a stereo lavalier or two ATR3350's along with that y-cable I noted in my previous post and stick it in the tow hole. The audio limiters might engage a little differently slightly affecting the stereo field, but it's going to be so dynamic back there with exhaust and wind and tire noises that I think the sound would be pretty good. Plus you could experiment and choose where to put each one controlling the stereo field------I mean if you really want to be geeking out with this stuff.....
Yeah i think you're right, I saw someone with a tow hook and that mic + wind cutter, so I went with that. Your setup is much simpler and also doesn't require taking it out each time you walk away from the car. Im gonna try and replicate that
alexmtl_135i is offline  
0
Reply With Quote
      06-23-2013, 07:50 PM   #62
SilentAttack
Major
 
Drives: 08 E90 Jerez Black 6MT
Join Date: Nov 2011
Location: Hendersonville, TN

Posts: 1,153
iTrader: (0)

Great Vid!!!
SilentAttack is offline  
0
Reply With Quote
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 06:26 PM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST