has this happened to anyone....

Johndoe · 03-05-2009, 07:22 PM

driving slowly in city - music playing - suddenly a high pitched ear-drilling buzzing noise....I was not sure if someone honked behind me but ears about to explode...quickly realized next this is coming from WITHIN the car......hit the on/off button for the music as it appeared to be coming from speakers but no response - sound remained loud- looked at instrument cluster but everything normal - suddenly I Drive goes black and then reboots supposedly as "BMW" comes up on the screen - the sound disappears....it boots back up and everything in normal. No impact on driveability or any error messages on screen.

good thing i am not a heart patient or have someone in my car who was a patient - as this was like a random 15 second episode with a sudden shocking high pitched buzzing noise that was in high decibles......will see if i have any fault codes at the 1200 mile service.....it is the 2009 I Drive and I was listening to some songs I had uploaded on the car's hard drive..so perhaps the hard drive crashed...?...oh and sometimes the songs on the hard drive skip at times so not sure if I have faulty I drive to being with....?

JPH · 03-05-2009, 08:32 PM

I don't have idrive but have not heard of this happening with others. I did have an old lady back into and crinkle my front bumper today though (true story)...then I heard a loud shreak in my own head but...that was just my own rage.

I hope you can figure this out and/or does not happen again.

Kadarin · 03-05-2009, 08:42 PM

I seem to remember seeing on this forum somewhere a couple of anecdotes similar to what you are describing. Has not happened to me as yet, though.

oneginee · 03-08-2009, 10:37 AM

sounds like a deffective audio card. You should try to play the same song again see if the audio codec goes bezerk again.

lincoln · 03-08-2009, 11:55 AM

I think the previous op's all had enhanced audio. Do you have EA?

AW_M3 · 03-08-2009, 03:13 PM

Car's Hard Drive? do 08 have this as well ?

spyderco10 · 03-08-2009, 03:39 PM

this specifiically has not happened to me, but a different malfuction occured. I have the base audio system, no I drive. One day when I started my car, no sound came out of the speakers. The head unit was on, but no sound. like the amplifier died or something. I tried shutting off the car several times to no avail. Then I drove to work and parked it. 8 hours later when i started the car, the music came on like normal. This happened about 2 weeks ago, so keeping an eye on it to see if it recurs.

drsnooz · 03-08-2009, 03:45 PM

I also remember someone mentioning something similar to what you are describing a while back on this forum. Try to do a search with random words and see what you find. I have a 09 as well and this hasn't happened to me.

Edit: Found some posts that might help:
http://www.m3post.com/forums/showthr...ighlight=noise
http://www.m3post.com/forums/showthr...ighlight=noise
http://www.m3post.com/forums/showthr...ighlight=noise
http://www.m3post.com/forums/showthr...ighlight=noise

newtom3 · 03-08-2009, 04:25 PM

My theory: basically audio flings around from HDD transport to digital audio amp using some digital bitstream, maybe optical or electrical who knows, but whenever there is an error in the compressed bitstream, the receiving end just blows up with random noise until it syncs again with some later correct frame. Errors can happen from EMI (electrical magnetic interference) from other car engine parts, your cellphone, who knows....

SHould happen very rarely. SOlutions could be finding out what is allowing noise to corrupt the digital connection... could be a bad ground for example...

Johndoe · 03-08-2009, 05:46 PM

Quote:

Originally Posted by lincoln

I think the previous op's all had enhanced audio. Do you have EA?

No I have base system....will try listening to same song if it skips to see if HD issue or poor recording but I am quite sure it is the HD as the skipping is not frequent and across different songs....I have been uploading songs via the USB connect in the glove compartment (using flash drive/memory stick)...I can add/delete songs off the new I drive so user-friendly/ 15 GB storage.... but the reboot was a first...especially with the in-car loud buzzing 'siren'..!!

oneginee · 03-08-2009, 07:24 PM

Quote:

Originally Posted by Johndoe

No I have base system....will try listening to same song if it skips to see if HD issue or poor recording but I am quite sure it is the HD as the skipping is not frequent and across different songs....I have been uploading songs via the USB connect in the glove compartment (using flash drive/memory stick)...I can add/delete songs off the new I drive so user-friendly/ 15 GB storage.... but the reboot was a first...especially with the in-car loud buzzing 'siren'..!!

poor recording is not the reason I suggested you retry the same track. Rather the problem might be with an unstable Delta-Sigma audio DAC design.
if it gets unstable for some audio input bit stream it can ocillate at high frequency and make the high pitched full scale sound you heard. If that's the case then it's poor design and bad news for everyone without the EA system.

JCtx · 06-25-2009, 12:36 PM

Just want to add to this thread in case this becomes a problem.
A variation of that happened to me, and I have an '08 (6/08 build date) with EA. While changing from SAT to CD, and while lowering the volume on the steering wheel at the same time, I got this piercingly loud noise from the front tweeters (daughter jumped out of the seat, hitting her head) but only for a second. No iDrive reset here; everything back to normal after that. Tried to duplicate it (without lowering the volume at the same time) and no luck. Hope it was a fluke, but something is not entirely right. With all the interfaces on this overly complex car, I doubt we'll find the culprit, but I still have almost 4 years for that to happen

. Good day.

g10zz · 06-25-2009, 04:05 PM

I had a problem where the system made a pop sound after 2-3 hrs into the ride. It was rather loud. Sounded like a big rock had hit my windshield. Then BMW reprogramed the whole system which takes about 5-6 hrs. After than i haven't had a problem.

Stav · 06-25-2009, 06:08 PM

I had the exact same issue with idrive reset while I was listening to some MP3s just last weekend. That sound was crazy loud and lasted for a few seconds before the idrive reset. The car kept running fine.

This is the first and only time this happened to me and I was listening to a DVD I had just made full of MP3s.

Went back to the same song it was playing at the time but I couldn't reproduce it.

I do have enhanced sound.

03-05-2009, 07:22 PM	#1
Johndoe Second Lieutenant 32 Rep 257 Posts Drives: 09 M3 sedan Join Date: Jan 2008 Location: Houston iTrader: (0)	has this happened to anyone.... driving slowly in city - music playing - suddenly a high pitched ear-drilling buzzing noise....I was not sure if someone honked behind me but ears about to explode...quickly realized next this is coming from WITHIN the car......hit the on/off button for the music as it appeared to be coming from speakers but no response - sound remained loud- looked at instrument cluster but everything normal - suddenly I Drive goes black and then reboots supposedly as "BMW" comes up on the screen - the sound disappears....it boots back up and everything in normal. No impact on driveability or any error messages on screen. good thing i am not a heart patient or have someone in my car who was a patient - as this was like a random 15 second episode with a sudden shocking high pitched buzzing noise that was in high decibles......will see if i have any fault codes at the 1200 mile service.....it is the 2009 I Drive and I was listening to some songs I had uploaded on the car's hard drive..so perhaps the hard drive crashed...?...oh and sometimes the songs on the hard drive skip at times so not sure if I have faulty I drive to being with....?
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03-05-2009, 08:32 PM	#2
JPH Second Lieutenant 20 Rep 254 Posts Drives: E92 M3 Coupe Join Date: Feb 2008 Location: Chicago iTrader: (0)	I don't have idrive but have not heard of this happening with others. I did have an old lady back into and crinkle my front bumper today though (true story)...then I heard a loud shreak in my own head but...that was just my own rage. I hope you can figure this out and/or does not happen again.
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03-05-2009, 08:42 PM	#3
Kadarin Ambassador of Crunk 17 Rep 606 Posts Drives: SG/blk '08 E92 M3 Join Date: Apr 2008 Location: San Jose, CA iTrader: (0)	I seem to remember seeing on this forum somewhere a couple of anecdotes similar to what you are describing. Has not happened to me as yet, though.
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03-08-2009, 10:37 AM	#4
oneginee Banned 16 Rep 415 Posts Drives: GT3 RS Join Date: Oct 2007 Location: SE iTrader: (0)	sounds like a deffective audio card. You should try to play the same song again see if the audio codec goes bezerk again.
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03-08-2009, 11:55 AM	#5
lincoln Lieutenant 19 Rep 432 Posts Drives: 2009 Melbourne Red Coupe - DCT Join Date: Jan 2009 Location: Seattle (Puyallup) iTrader: (0)	I think the previous op's all had enhanced audio. Do you have EA? __________________ 2009 Melbourne Red DCT \| Black Interior \| Carbon Fiber Trim \| Carbon Fiber Roof \| Cold Weather \| Premium \| Technology \| 19's \| Smartphone Integration \| iPod \|
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03-08-2009, 03:13 PM	#6
AW_M3 ///M 22 Rep 182 Posts Drives: E92 M3 AW/FR Extended Join Date: Mar 2008 Location: Kwt iTrader: (0)	Car's Hard Drive? do 08 have this as well ?
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03-08-2009, 03:39 PM	#7
spyderco10 Colonel 63 Rep 2,426 Posts Drives: AW E92 M3 6MT Join Date: Jul 2008 Location: Honolulu, HI iTrader: (0)	this specifiically has not happened to me, but a different malfuction occured. I have the base audio system, no I drive. One day when I started my car, no sound came out of the speakers. The head unit was on, but no sound. like the amplifier died or something. I tried shutting off the car several times to no avail. Then I drove to work and parked it. 8 hours later when i started the car, the music came on like normal. This happened about 2 weeks ago, so keeping an eye on it to see if it recurs. __________________ “For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life.” - John 3:16
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03-08-2009, 03:45 PM	#8
drsnooz Professor 19 Rep 437 Posts Drives: 08 E60 M5 Join Date: Apr 2007 Location: Viva Las Vegas!!! iTrader: (3)	I also remember someone mentioning something similar to what you are describing a while back on this forum. Try to do a search with random words and see what you find. I have a 09 as well and this hasn't happened to me. Edit: Found some posts that might help: http://www.m3post.com/forums/showthr...ighlight=noise http://www.m3post.com/forums/showthr...ighlight=noise http://www.m3post.com/forums/showthr...ighlight=noise http://www.m3post.com/forums/showthr...ighlight=noise Last edited by drsnooz; 03-08-2009 at 04:01 PM..
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03-08-2009, 04:25 PM	#9
newtom3 First Lieutenant 15 Rep 361 Posts Drives: 2009 BMW M3 Coupe Join Date: Sep 2008 Location: San Jose, CA iTrader: (0)	My theory: basically audio flings around from HDD transport to digital audio amp using some digital bitstream, maybe optical or electrical who knows, but whenever there is an error in the compressed bitstream, the receiving end just blows up with random noise until it syncs again with some later correct frame. Errors can happen from EMI (electrical magnetic interference) from other car engine parts, your cellphone, who knows.... SHould happen very rarely. SOlutions could be finding out what is allowing noise to corrupt the digital connection... could be a bad ground for example...
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06-25-2009, 12:36 PM	#12
JCtx Major General 258 Rep 5,012 Posts Drives: No BMW yet Join Date: May 2008 Location: El Paso TX iTrader: (0)	Just want to add to this thread in case this becomes a problem. A variation of that happened to me, and I have an '08 (6/08 build date) with EA. While changing from SAT to CD, and while lowering the volume on the steering wheel at the same time, I got this piercingly loud noise from the front tweeters (daughter jumped out of the seat, hitting her head) but only for a second. No iDrive reset here; everything back to normal after that. Tried to duplicate it (without lowering the volume at the same time) and no luck. Hope it was a fluke, but something is not entirely right. With all the interfaces on this overly complex car, I doubt we'll find the culprit, but I still have almost 4 years for that to happen . Good day.
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06-25-2009, 04:05 PM	#13
g10zz JiggaManJZ89 14 Rep 49 Posts Drives: E92 M3 Lime Rock Join Date: May 2009 Location: Lake Charles, LA iTrader: (3)	I had a problem where the system made a pop sound after 2-3 hrs into the ride. It was rather loud. Sounded like a big rock had hit my windshield. Then BMW reprogramed the whole system which takes about 5-6 hrs. After than i haven't had a problem.
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06-25-2009, 06:08 PM	#14
Stav Second Lieutenant 57 Rep 290 Posts Drives: F90 M5 Join Date: Jul 2008 Location: Tennessee iTrader: (0)	I had the exact same issue with idrive reset while I was listening to some MP3s just last weekend. That sound was crazy loud and lasted for a few seconds before the idrive reset. The car kept running fine. This is the first and only time this happened to me and I was listening to a DVD I had just made full of MP3s. Went back to the same song it was playing at the time but I couldn't reproduce it. I do have enhanced sound.
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