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W520 audio connection radio interference

W500/W510/W520 and W700/W701 series specific matters only
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Arf the Lab
Posts: 42
Joined: Thu Jan 08, 2009 8:10 pm
Location: USA

W520 audio connection radio interference

#1 Post by Arf the Lab » Wed Apr 15, 2015 10:14 pm

Hello, all.

I've got a W520 with Sound Blaster X-Fi ExpressCard installed, and wish to record audio thru its line-in. Trouble is I get radio interference (radio station reception) through it. I know it's a problem with this specific machine / sound card, as I've successfully used other (older) ThinkPads to record audio from the same output source, using the same audio cable, with the same or similar Sound Blaster cards.

I'm currently using the standard 2-prong 170W AC adaptor with my machine. I've read that a 3-prong grounded, insulated AC adaptor is what I should be using, in order to quell the radio interference. But I don't want to end up buying a "fake," so I'm asking here if someone can recommend an adaptor that can solve the problem. Or perhaps suggest another solution, if indeed an AC adaptor replacement won't help.

Thanks in advance.

u666sa
Posts: 48
Joined: Tue Mar 12, 2013 11:40 am
Location: Sochi, Russia

Re: W520 audio connection radio interference

#2 Post by u666sa » Sun May 03, 2015 10:44 am

Getting power ground on your ac adapter does not get you ground your notebook chassis. You could open up lower memory slot and connect a wire to a chassis frame and the other end to some metal surface, perhaps a heating battery in your house, or a water faset. That will be proper ground. However, that fact that you receive radio on your sound card indicates that your sound card is bad. Besides, you don't need an external sound card for recording, build in sound in W200 is good. The only thing you might get an external stereo mic.

Arf the Lab
Posts: 42
Joined: Thu Jan 08, 2009 8:10 pm
Location: USA

Re: W520 audio connection radio interference

#3 Post by Arf the Lab » Thu May 07, 2015 9:26 pm

OK, thanks for the info.

I'm happy to record via the laptop's own native audio in, but it doesn't seem there were any input drivers installed from Lenovo's driver package, only output. Where can I get audio in drivers for the W520?

jcvjcvjcvjcv
Senior Member
Senior Member
Posts: 752
Joined: Tue Jun 26, 2007 8:42 pm
Location: Amsterdam, The Netherlands

Re: W520 audio connection radio interference

#4 Post by jcvjcvjcvjcv » Sat Jul 04, 2015 10:17 pm

Euh, what do you mean? If you installed all the applicable drivers from Lenovo's W520 driver page, the audi-in is definitely working.
W520
T61

helicopter
Posts: 41
Joined: Sat Oct 06, 2012 4:40 pm
Location: Brooklyn, NY USA

Re: W520 audio connection radio interference

#5 Post by helicopter » Thu Dec 31, 2015 11:07 am

Did you eventually solve this problem? I ask because I was looking at the Creative X-Fi card you mentioned and want to know if this is a known issue. And did you record successfully with the line-in with the Lenovo drivers?

I'm looking to find a new sound set-up to replace a Soundblaster Audigy 2 ZS Notebook (a PCMCIA card) that I used to run on a T42 under XP. It was a good setup.

Retrostyle
Posts: 3
Joined: Sun May 08, 2011 8:02 am
Location: Hamelin, Germany

Re: W520 audio connection radio interference

#6 Post by Retrostyle » Sun Jan 10, 2016 11:16 am

Try an Expresscard-/PCMCIA-Adapter, to use your old Audigy card. ;)
Thinkpads: 560, 570 (2644-3AG), 760XL(9547-X9G/C?), T30 (2366-DG4) W520 i7-2860QM with 2000m, 12 GB RAM, 64 GB MSATA SSD, 500 GB HDD
Non-Thinkpads: Fujitsu-Siemens Lifebook C1110 (Wife's one in professional Hello Kitty-Paint), Lifebook E8010, Lifebook E8020 (as Win7-Machine)

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