Issue with speaker

~~andrew.lvp~~ · 03-02-2007, 03:58 AM

Hi, my laptop has a buzzing noise for any video/music. When I connect head phones it's fine. Is it just damaged?

And is there a software to detect my sound card. Thanks.

ecc83 · 03-06-2007, 03:03 AM

Hi Andrew,
I have read of earth loop problems with some laptops. I assume the amp or active speakers have a three core mains lead and this is causing the loop. Does the problem exist if the laptop is run soley on battery power, .ie. NO connection to mains power? if this fixes things you need 1:1 isolating transformers in the signal lead, or you can make up a "shielded" return lead.
Also check out some of the audio forums, www.audioforums.com www.futurenet.com
Come back if this is gibberish!
Dave.

**Deleted090308** · 03-06-2007, 03:13 AM

Hi!
Try Everest - http://www.majorgeeks.com/download4181.html. It will identify the hardware in your computer.

Nicholas

**TheMatt** · 03-06-2007, 03:50 PM

Probably RFI (interference). This occurs in my mother's car when her Blackberry is being called. Move away or turn off any cell phones or other devices that may emit RFI and see if it stops.

~~andrew.lvp~~ · 03-07-2007, 06:11 AM

The problem remains even when I unplug the adapter. Cell phones were not the problem too, maybe it just got old and damaged.
Thanks for the help.

03-02-2007, 03:58 AM	#1 (permalink)
~~andrew.lvp~~ Troubled Join Date: Dec 2006 Location: Hong Kong Posts: 124 OS: Vista Home Premium + XP Professional My System	Issue with speaker Hi, my laptop has a buzzing noise for any video/music. When I connect head phones it's fine. Is it just damaged? And is there a software to detect my sound card. Thanks.

03-06-2007, 03:03 AM	#2 (permalink)
ecc83 Registered User Join Date: Oct 2006 Posts: 295 OS: XP	buzzy laptop Hi Andrew, I have read of earth loop problems with some laptops. I assume the amp or active speakers have a three core mains lead and this is causing the loop. Does the problem exist if the laptop is run soley on battery power, .ie. NO connection to mains power? if this fixes things you need 1:1 isolating transformers in the signal lead, or you can make up a "shielded" return lead. Also check out some of the audio forums, www.audioforums.com www.futurenet.com Come back if this is gibberish! Dave.

03-06-2007, 03:50 PM	#4 (permalink)
TheMatt TSF Enthusiast Join Date: May 2006 Location: Boston Posts: 13,701 OS: Win 3.1, 98, NT 4.0, XP Debian 4.0, Kubuntu 6.06 My System Blog Entries: 3	Probably RFI (interference). This occurs in my mother's car when her Blackberry is being called. Move away or turn off any cell phones or other devices that may emit RFI and see if it stops. __________________ - Matt M - KB1OSC - Folding@Home 85015 [url="http://www.techsupportforum.com/hardware-support/"] If TSF has helped you, please consider donating. If I have stopped responding to a thread, feel free to send me a PM with a link to the thread. It is advisable to subscribe to threads so you will receive updates when replies are posted. You can subscribe to threads from the "Thread Tools" Menu. »Memtest86 »Prime95 »UBCD »SpeedFan »NHC Personal »Everest »Sandra »PC Wizard »RivaTuner »ATi Tool Click here for Useful Articles and Guides

03-06-2007, 03:13 AM	#3 (permalink)
Deleted090308 Not... Join Date: Jan 2007 Posts: 22,277 OS: Xp	Hi! Try Everest - http://www.majorgeeks.com/download4181.html. It will identify the hardware in your computer. Nicholas

03-07-2007, 06:11 AM	#5 (permalink)
~~andrew.lvp~~ Troubled Join Date: Dec 2006 Location: Hong Kong Posts: 124 OS: Vista Home Premium + XP Professional My System	The problem remains even when I unplug the adapter. Cell phones were not the problem too, maybe it just got old and damaged. Thanks for the help.