Volume fluxuations front to back and left to right? - Toyota Yaris Forums

PeacePiper · 11-24-2009, 11:39 AM

Hi,
Whenever I listen to FM stereo stations, the volume never stays constant from front to back and from left to right. Has anyone else experienced this? It isn't a big change in volume, but it is annoying. It happens only with the radio. CD and Aux-in works and stays constant. Any input would be appreciated. Thanks,
--Dan--

PeacePiper · 11-26-2009, 01:15 AM

Factory speakers and deck...

goku87 · 11-26-2009, 09:42 AM

This can be caused by many things, multipath interference, poor modulation (highly unlikely, as the radio stations have expensive transmission equipment), or poor demodulation. My guess is that when this happens you are probably by hardened structures that reflect the radio waves, so the multiple paths the radio waves travel cause the electromagnetic waves to cancel each other out to a certain degree. Sometimes this error is big enough to cause degradation in the information, which includes volume/pan information, among other things, when talking about FM.

PeacePiper · 11-27-2009, 02:24 AM

Hey,
Thanks for the input man. I have never had this happen in any other vehicle I've had, and I have had a lot of vehicles. It even happens on the highway when passing farm fields. It must be a defective stereo if I am the only one it is happening to. I wonder if the radio is covered under warranty?
Cheers...

11-24-2009, 11:39 AM	#1
PeacePiper Drives: 2009 Toyota Yaris Join Date: Nov 2009 Location: Sault Ste. Marie Ontario Canada Posts: 3	Volume fluxuations front to back and left to right? Hi, Whenever I listen to FM stereo stations, the volume never stays constant from front to back and from left to right. Has anyone else experienced this? It isn't a big change in volume, but it is annoying. It happens only with the radio. CD and Aux-in works and stays constant. Any input would be appreciated. Thanks, --Dan--

11-26-2009, 09:42 AM	#3
goku87 Drives: Black HB Join Date: Oct 2008 Location: AK Posts: 542	In a nut shell... This can be caused by many things, multipath interference, poor modulation (highly unlikely, as the radio stations have expensive transmission equipment), or poor demodulation. My guess is that when this happens you are probably by hardened structures that reflect the radio waves, so the multiple paths the radio waves travel cause the electromagnetic waves to cancel each other out to a certain degree. Sometimes this error is big enough to cause degradation in the information, which includes volume/pan information, among other things, when talking about FM. __________________ Selling: [NST Short Shift Kits] [Clazzio Seat Covers] [Carbon Fiber Shift Knob] [180mm Double Din Dash] [Replacement Stock Headlight Bulb] [Various Interior Trim Pieces]

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Get your post counts here! read 1st post for rules	Astroman	Off-topic / Other Cars / Everything else Discussions	3414	11-04-2012 09:03 AM
DIY - HID Retrofit	Violin	DIY / Maintenance / Service	57	06-11-2007 06:17 PM

11-26-2009, 01:15 AM	#2
PeacePiper Drives: 2009 Toyota Yaris Join Date: Nov 2009 Location: Sault Ste. Marie Ontario Canada Posts: 3	Factory speakers and deck...

11-27-2009, 02:24 AM	#4
PeacePiper Drives: 2009 Toyota Yaris Join Date: Nov 2009 Location: Sault Ste. Marie Ontario Canada Posts: 3	Hey, Thanks for the input man. I have never had this happen in any other vehicle I've had, and I have had a lot of vehicles. It even happens on the highway when passing farm fields. It must be a defective stereo if I am the only one it is happening to. I wonder if the radio is covered under warranty? Cheers...