static noises from using usb cable

Xin1120 · 08-13-2008, 08:51 AM

I don't know if anyone else have experienced this but it sounds like there are more static noises or perhaps even a blown speaker somewhere when I use my iphone with the usb cable. The CD and even the radio doesn't produce those noises. I've checked my songs' quality and they are all above 128kbps, some 192, 320. Does anyone else have this feeling or am I just going crazy?

BTW I dunno if this helps but I only have the normal radio. No HD service.

backtoreality15 · 08-13-2008, 11:55 AM

If you mean that you are using your iPhone like a drive with just a simple USB connection, then the signal is purely digital. Most likely your head unit is having issues decoding the information for some reason. This is unlikely.

If you mean, on the other hand, that you are using the black USB + Auxiliary cable that came with your car, that make more sense; Auxiliary is analog, thus a damaged cable would produce these static noises & artifacts in your sound.

Drop by the dealership if you can and ask them if you can use one of their extra cables to see what's going on for yourself, and therefore isolate the problem.

JC Jai · 08-13-2008, 12:32 PM

my situation is a little different, but I thought my speakers were broken when it first happened. I inserted a MP3 CD and files with VBR (variable bitrate) have trouble being played thru the head unit. Files with constant bitrate, on the same CD has no problems playing through the speakers. I suspect this is a similar issue to what you are experiencing.

Xin1120 · 08-13-2008, 01:32 PM

I am using the black Y usb&aux cable that the car came with. I wasn't aware that I could use the iPhone just like a flash drive and play it through only the USB which I will try later today.

I dunno much about sound qualities so I can say if thats the same problem or not with JC Jai's comment

backtoreality15 · 08-13-2008, 02:34 PM

Quote:

Originally Posted by Xin1120

I am using the black Y usb&aux cable that the car came with. I wasn't aware that I could use the iPhone just like a flash drive and play it through only the USB which I will try later today.

I dunno much about sound qualities so I can say if thats the same problem or not with JC Jai's comment

I don't know if you can do that with the iPhone; I was just speculating because you made it seem like you could've been playing with without the Y-adapter, haha. I know you can with the iPods if you allow it to be used as a storage device. :wink:

mistermojorizin · 08-13-2008, 02:35 PM

i'm using an ipod with a regular headphone cable connecting the headphone out of the ipod to the aux jack and i don't notice any static. i hear you get better sound if you use the bottom of the ipod instead of the headphone out, but i don't see how much better it coudl be.

Xin1120 · 08-13-2008, 02:43 PM

too bad the iphone can't be used as a storage device

I will have to experiment with this and see

135iPSU · 08-13-2008, 02:58 PM

you know the speakers pick up the noise of in coming calls and text messages before your phone will, its a crazy thing i just found out the other day that apparently a lot of ppl i know already knew this, it makes this scratchy static noise for a few seconds when a call or text is about to come thru

Xin1120 · 09-07-2008, 12:44 AM

I finally found the problem and it was because of my stupidity. I had the aux port volume turned all the way up. I figured when I got the car that would somehow help the sound but it was just stupid. Anyways, thx for all the help guys.

08-13-2008, 08:51 AM	#1
Xin1120 Captain 41 Rep 667 Posts Drives: 135i Coupé Join Date: Jun 2008 Location: Texas iTrader: (1) Garage List 2008 135i Coupé SOLD [0.00]	static noises from using usb cable I don't know if anyone else have experienced this but it sounds like there are more static noises or perhaps even a blown speaker somewhere when I use my iphone with the usb cable. The CD and even the radio doesn't produce those noises. I've checked my songs' quality and they are all above 128kbps, some 192, 320. Does anyone else have this feeling or am I just going crazy? BTW I dunno if this helps but I only have the normal radio. No HD service.
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08-13-2008, 11:55 AM	#2
backtoreality15 Captain 81 Rep 752 Posts Drives: 2019 330i Join Date: Feb 2008 Location: Bay Area, CA iTrader: (0)	If you mean that you are using your iPhone like a drive with just a simple USB connection, then the signal is purely digital. Most likely your head unit is having issues decoding the information for some reason. This is unlikely. If you mean, on the other hand, that you are using the black USB + Auxiliary cable that came with your car, that make more sense; Auxiliary is analog, thus a damaged cable would produce these static noises & artifacts in your sound. Drop by the dealership if you can and ask them if you can use one of their extra cables to see what's going on for yourself, and therefore isolate the problem. __________________ 2019 M-Sport 330i \| G20
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08-13-2008, 12:32 PM	#3
JC Jai E.I.T 5 Rep 155 Posts Drives: Join Date: May 2008 iTrader: (0)	similar issue from me... my situation is a little different, but I thought my speakers were broken when it first happened. I inserted a MP3 CD and files with VBR (variable bitrate) have trouble being played thru the head unit. Files with constant bitrate, on the same CD has no problems playing through the speakers. I suspect this is a similar issue to what you are experiencing.
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08-13-2008, 01:32 PM	#4
Xin1120 Captain 41 Rep 667 Posts Drives: 135i Coupé Join Date: Jun 2008 Location: Texas iTrader: (1) Garage List 2008 135i Coupé SOLD [0.00]	I am using the black Y usb&aux cable that the car came with. I wasn't aware that I could use the iPhone just like a flash drive and play it through only the USB which I will try later today. I dunno much about sound qualities so I can say if thats the same problem or not with JC Jai's comment
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08-13-2008, 02:35 PM	#6
mistermojorizin Lieutenant Colonel 40 Rep 1,657 Posts Drives: 135i Join Date: Apr 2008 Location: Los Angeles iTrader: (0)	i'm using an ipod with a regular headphone cable connecting the headphone out of the ipod to the aux jack and i don't notice any static. i hear you get better sound if you use the bottom of the ipod instead of the headphone out, but i don't see how much better it coudl be. __________________ "KOPEYKA" /// Titanium Silver / Black Leather / Gray Poplar / Sport Package / Premium Package / 6MT / Feb 08 Production
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08-13-2008, 02:43 PM	#7
Xin1120 Captain 41 Rep 667 Posts Drives: 135i Coupé Join Date: Jun 2008 Location: Texas iTrader: (1) Garage List 2008 135i Coupé SOLD [0.00]	too bad the iphone can't be used as a storage device I will have to experiment with this and see
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08-13-2008, 02:58 PM	#8
135iPSU Enthusiast 11 Rep 272 Posts Drives: Join Date: Jun 2008 iTrader: (1) Garage List 2008 135i [0.00]	you know the speakers pick up the noise of in coming calls and text messages before your phone will, its a crazy thing i just found out the other day that apparently a lot of ppl i know already knew this, it makes this scratchy static noise for a few seconds when a call or text is about to come thru __________________ Titanium Silver, Coral Red, Aluminum
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09-07-2008, 12:44 AM	#9
Xin1120 Captain 41 Rep 667 Posts Drives: 135i Coupé Join Date: Jun 2008 Location: Texas iTrader: (1) Garage List 2008 135i Coupé SOLD [0.00]	found the problem I finally found the problem and it was because of my stupidity. I had the aux port volume turned all the way up. I figured when I got the car that would somehow help the sound but it was just stupid. Anyways, thx for all the help guys.
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