My sony vaio (VGN-FS515B) has audio drivers which

You can download the audio and device drivers from the Sony WEB site.
Select your model notebook and the Windows drivers you require. Please click on this link to the Sony support WEB site :-
http://esupport.sony.com/US/perl/select-system.pl?PRODTYPE=1,24,72&DIRECTOR=DRIVER

Hi please visit : http://www.softitem.com/driver-t-l-chargemet-driver-audio-pour-laptop-sony-vaio-vgn-fs515h or visit :http://notebook-drivers-download.com/laptop/index_6762.html and download driver

First try this, http://esupport.sony.com/perl/select-system.pl?PRODTYPE=1,24,26,66,9,70,5,72 Option 1. "Detect My Model" on the right pane. If this doesn't help, try here again, drivers for sony via vgn-t170 series Currently there's no drivers for windows 7 but on most systems this works. Good luck. Thanks for using FixYa.

It looks like the current driver for your particular model is still the original version, which is dated 20-Oct-2004. In my experience, audio drivers almost always need to be obtained from the manufacturer -- Sony, in this case.

Click the link at the end of this text to go directly to the driver download page for your model -- this is Sony's eSupport, a user-friendly and sophisticated site. The drivers are grouped into categories and "Audio" is the first one. Click the + and you should see 1 driver available -- download it with the green arrow (when prompted by windows, click RUN... unless you want to save it). Assuming the installation completes successfully, Vaio audio drivers usually enable sound output without requiring you to reboot. But just follow the prompts.

Drivers are here: http://esupport.sony.com/US/perl/swu-list.pl?mdl=VGNT170P

Here is the home page that is specific for your model of Vaio; this is the page you want to bookmark or add to Favorites:
http://esupport.sony.com/US/perl/model-home.pl?mdl=VGNT170P

download driver by using this support site
http://vaio-online.sony.co.kr/

Be sure that you install the audio driver in your laptop. If your computer has already installed a audio driver then be sure the volume is not muted.

Hi,
You can download the required driver from:
http://support.vaio.sony.eu/computing/vaio/downloads/preinstalled/index.aspx?l=en_GB&m=VGN-FS115M
Hope this solves your problem. For more help and clarifications, please reply to this post. Thanks

Check this out "XP audio/sound driver for sony vaio vgn-n320e"

Uninstall your previous installation and install this audio/sound driver.

http://esupport.sony.com/US/perl/swu-download.pl?mdl=VGNN320E&upd_id=3507&os_id=7

what u can do is that just go to this website and then click on the instant scan and it will keep the drivers of ur computer up to date and will access the full functionality of ur computer.
http://club.cdfreaks.com/f36/window-xp-pro-drivers-sony-vgn-cr-series-242582/ or u can try this website also www.driveragent.com , good luck

plz check the manufactureture website