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Windows 7: Screeching noise from left JBL speaker in Lenovo Y560

04 Oct 2013   #1
Uchiha

Windows 7 Home Premium x64
 
 
Screeching noise from left JBL speaker in Lenovo Y560

Sorry for disturbing but my laptop has come up with another problem.
The left speaker gives off a screeching noise very often while playing sound, be it games or movies.
Most probably a hardware problem, but not exactly sure.


My System SpecsSystem Spec
04 Nov 2013   #2
Uchiha

Windows 7 Home Premium x64
 
 

Guys?
My System SpecsSystem Spec
06 Nov 2013   #3
Worker

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Uchiha View Post
Sorry for disturbing but my laptop has come up with another problem.
The left speaker gives off a screeching noise very often while playing sound, be it games or movies.
Most probably a hardware problem, but not exactly sure.
I'm no techxpert, much less an electrician or have much work experience thus, but I've found that feedback loops (caused by output from your speakers or receiver getting 'back into' another port, like the Line-In or Microphone jack) sometimes just by the magnetic fields a speaker puts out depending on how cranked up the volume is and, importantly, how close the speaker and coils are to your soundboard/computer) are often the cause of what you're describing, at least on a basic level. If there are no other faults in your JBLs (they're on the high end of speaker/audio manufacturers as I know them) and the screech in one speaker is the only weirdness that's happening, if it's at all possible move your speakers a fair ways from your computer and- importantly- any sound input jacks feeding into your laptop, even the sound card ports as a whole- and try cranking up the volume or bass with the same setup sound-wise (other than your receiver and/or speakers moved away from your rig) and see if that helps at all.

A lot of speakers aren't built with magnetic shielding involved, which of course can affect a computer in more ways than audio troubles, but assuming your JBLs aren't shielded (or are cranked up high enough that it'd trip a feedloop anyway) and you've got them on both sides of your laptop when you listen to your music with the sound up, that's an entirely possible source for your troubles. If you've got a stereo-to-mono cable (with the point in mind that it seemed to be only affecting the one speaker in your description) try 'shutting off' one of the stereo channels, either the one being affected with the 'squeal' or the other. In fact, now that I think of it, you can probably isolate one channel or the other in your Sound Manager (I assume it might be RealTek, but I know you can get some really high-end soundboards and if you've got a pair of JBL outputs you might very well have something a lot more sophisticated than I'm used to ^_^), which may go under a different name in Windows 7 than XP 64-Bit but I imagine you know what I'm referring to.

I hope this is of some help to you; I use my computer for most of my digital music playback and definitely all of my video watching & gaming, and I know how much I count on mine. My setup's pretty basic as digital sound output goes; I have a 0.5mm-to-RCA (one end like a standard headphone jack, going into my motherboard's back output jack, and the other end into the Aux RCA port of my old 400W NEC analog receiver, with two 200W Technics tower speakers from Circuit City several years ago for my birthday, which pump the moosik like a dream) cable that feeds into my receiver. Nothing ubercomplex, and my new rig (arriving on Friday, and whose specs are described in my 'My Computer's Specs') will use the same setup, cables and all. ^_^

-Worker.
My System SpecsSystem Spec
07 Nov 2013   #4
Uchiha

Windows 7 Home Premium x64
 
 

So I should just disable one of my speakers?
That significantly reduces volume....
My System SpecsSystem Spec
08 Nov 2013   #5
Worker

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Uchiha View Post
So I should just disable one of my speakers?
That significantly reduces volume....
Uchiha; Do it temporarily; use the Sound Manager on your Lenovo. (Or whatever program or utility you use to change the settings on your soundcard) to 'disable' one of your speakers temporarily. Test each one with either the left or right channel disabled (not physically disconnecting your speakers, but in your Sound Manager.) Did you try moving your speakers and/or receiver away from your laptop? Magnetically unshielded speakers (or the vibrations from a speaking driver putting out sound/music with enough sheer force) can do what you've described as your problem (the feedback-like screech in one of your speakers, but not the other), certainly if you've got your speakers right next to your computer on either side of it. I maintain that I'm not really very tech-savvy with this sort of thing, but I'm hoping my input on the matter will be of some help. If at any point I say 'disable one speaker' or 'channel', I mean at your computer's end (Sound Manager); I suspect my saying it might've been misunderstood, and if was my music setup I can understand your being puzzled at being asked to _physically_ disconnect one of your speakers. If the problem persists (or has persisted), it's important to treat what you attempt to do is troubleshooting as opposed to 'normal playback use'; it's not going to be permanent but you'll have to accept that while the change to Sound Manager is made (but only temporarily, though) you won't have the full use of your speaker output. -Worker.
My System SpecsSystem Spec
09 Nov 2013   #6
Uchiha

Windows 7 Home Premium x64
 
 

I think you're not getting my point.
While I can disable my left speaker, it drastically reduces volume.
And FYI, looks like you need this info, my JBL speakers are in-built.
My System SpecsSystem Spec
09 Nov 2013   #7
Worker

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Uchiha View Post
I think you're not getting my point.
While I can disable my left speaker, it drastically reduces volume.
And FYI, looks like you need this info, my JBL speakers are in-built.
Uchica; Oh, I _dig_ now! I really am sorry for going off on that tangent; I assumed your setup was with a separate amp & speakers or receiver & speakers (the latter in my case) and not built right into the unit. If that's the case, the only part of what I suggested might help wouldn't help you much (seeing as you obviously can't move the speakers out of their physically attached positions); and that would be in some way putting some distance between the speaker drivers and your computer...which of course isn't something you could do. I really don't know what to suggest, as I have very little experience with laptops and none with diagnosing speaker/sound trouble with built-in speakers. I wish I could be of more help, ami. The best thing I can think of is to put the volume up to the point where the screech in one channel happens, and then turn said volume down until the screech stops and/or the sound comes through normally. I suspect it's an electrical problem (or a shielding problem, since your speakers are built into your laptop) which is entirely out of my realm of experience or ability to fix, I'm afraid. Thanks for putting up with my extended-length goof, in any case, and I hope I've at least been of some comfort in being about to talk about your rig troubles with someone. I love my music and using my computer to play it (usually in Foobar2000) and I can understand it being a stresser to not be able to turn yours up. -Worker.
My System SpecsSystem Spec
12 Nov 2013   #8
rvcjew

Win 7 PRO x64, WIN 8.1 PRO x64
 
 

my y510p also has not a a screeching issue but has static sometime out of the left and it seems to be inline with power fluctuations and is basically ground loop interference, if you use your laptop on battery only does the screeching halt, and does it do it when no sound is playing? have you installed the latest sound drivers for your laptop from lenovo?
My System SpecsSystem Spec
08 Feb 2014   #9
Uchiha

Windows 7 Home Premium x64
 
 

Yes. I have.
My System SpecsSystem Spec
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 Screeching noise from left JBL speaker in Lenovo Y560




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