Random Sound coming from right speaker when switching wireless switch

[MistaFixIt]

Hello everyone,

I have a strange issue with a Sony Vaio VGN-SZ71VN Notebook. Every time the Wireless switch is turned to the "on" position, the right speaker makes random noise. Turning the wireless to off makes the sound go away. Here is what I have done so far:

- sound driver newly installed
- Audio daughterboard replaced
- Speakers replaced
- Wireless card replaced

Even after all of these pieces of hardware have been replaced, the issue still remains. The speaker consistently makes a short scratching noise after the wireless switch is turned to the "on" position. I had the idea that the wireless card may be interfering with the speakers, but even replacing the wireless card made no difference. Does anyone have an idea what could be causing this ghostly issue?:sarc:

 

[fireberd]

Wi-Fi is a known potential cause of noise in audio. If you browse the Sound section of the forum you will find many posts about noise, popping, crackling, etc.

Run the DPC Latency Checker and see what that shows, both with the wi-fi on and off.
I suspect with wi-fi on you will see spikes.
DPC Latency Checker

For even further, in depth, Latency diagnosis, run the Resplendence Latency Monitor.
Resplendence Software - Advanced System Tools and Developer Components

 

[MistaFixIt]

Obviously being caused from Wireless since spikes are shown when wireless is turned on. Is it possible to have spikes even after replacing the wireless card with 3 different ones? I see spikes every time the wireless is switched on regardless of which wireless card is installed.

 

[fireberd]

May just be the design of the laptop. I can't really offer a fix, other than try a different version driver for the wi-fi card.

 

[fireberd]

One other thought, since its just one speaker. The wiring and shielding for that speaker could be an issue, if its the one closest to the wi-fi card.

 

[MistaFixIt]

I'll take a look at which speaker is closer, remove it and post results.