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05-16-2013

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Dolby Home Theater v4 = lower sound quality

2013-08-06, 13:28 PM

I've got y580 and without DHT music sounds a lot better, but I miss the old Realtek's equalizer. With DHT sounds are like in phone earpiece. Any advices how can I restore old equalizer or fix DHT?

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4469 Posts

04-22-2013

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Re: Dolby Home Theater v4 = lower sound quality

2013-08-06, 16:01 PM

 hi tro7e,

 

Thanks for posting!

 

You should be able to create or customize the DHT Equalizer for fine tuning

dolby-2.jpg

 

If you are not able to access the custom settings

Follow this steps to reinstall DHT with audio driver

 

For us to make a Clean and proper install, Follow this guide

 

1. Uninstall the Conexant Driver from device manager place a check under "delete device software" and any Dolby related from your Control Panel / Programs and features / Uninstall a program. Then Restart the system

 

2. Download the Conexant Audio drivers from support.lenovo.com . Install that and complete everything. Restart.

 

3. Go to My Computer    /> C: (C Drive)    /> Drivers /> Conexant Audio Driver   /> DolbyGUI

 

4. You should be seing a Dolby Home theater Install that,  then Restart and you're done.!

 

 

Best Regads

Solid Cruver



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Re: Dolby Home Theater v4 = lower sound quality

2013-08-06, 20:08 PM

So I should install Conexant instead of Realtek? Also Realtek drivers from support aren't up-to-date and DHT doesn't work with them, but it works with newest from Realtek site.

 

Indeed, it works with R2.70 Realtek drivers, but still the sound, even on user profile, is flat, there's almost no bass and EQ work really bad.

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Re: Dolby Home Theater v4 = lower sound quality

2013-08-06, 20:30 PM

hi

 

It really depends on your Audio Hardware. If you have realtek HD Audio then that's the one you need to download and  install.

   But the Idea here is that.

             The Dolby version should match the Audio driver.

                    The Audio Driver from support.lenovo.com contains a bundled DOLBY Installer, after installing that to your computer will extract a DOLBY compatible installer to your C: Drive, that's why the audio driver from support site is too big in size.

 

 Just have to locate where it extracted and install that.

AFAIK these is where it will go, after installing your audio driver check these directories and see if there will be a DOLBy Installer.


Conexant
C:  /> Drivers /> Conexant Audio Driver   /> DolbyGUI


Realtek
C:" /Drivers  /Realtek Audio Driver  /PCEE4

 

Installing a mismatch Audio driver and dolby may cause version error

 

Best Regards

Solid Cruver



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Re: Dolby Home Theater v4 = lower sound quality

2013-08-06, 20:45 PM

There's no such a thing in Realtek's folder. And it weights about 4 mb more than newer version from Realtek's site, but it may be caused by the executable archive that unpacks drivers to drivers folder.

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Re: Dolby Home Theater v4 = lower sound quality

2013-08-06, 21:09 PM

hi

 

if you'll check this link for your system's driver download

http://support.lenovo.com/en_PH/research/hints-or-tips/detail.page?&DocID=HT073649

Realtek driver for WIN 7, 8 and XP has the size of 83MB  116MB and 122MB.

It should extract/create a "drivers" folder on your C: Drive and contain following folders i posted above.

 

 

also please see these threads about Audio driver and Dolby integration.

  

http://forums.lenovo.com/t5/Lenovo-3000-and-Essential/Dolby-advanced-audio-V2-in-G580/m-p/1127619/highlight/true#M44242

 

http://forums.lenovo.com/t5/IdeaPad-Y-U-V-Z-and-P-series/Dolby-Home-Theater-Download/m-p/1138299/highlight/true#M89876

 

Let me know your findings

Best Regards

Solid Cruver

 



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  • Message 7 of 11

Re: Dolby Home Theater v4 = lower sound quality

2013-08-06, 21:54 PM

Obrazek.jpgThat's how my Realtek folder looks like. I'll try to experiment with different drivers (like for XP, or R2.71 from Realtek's site). Could you tell me if you have any experience with sound with and without DHT? Does it's EQ is at least as good as old Realtek's one?

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  • Message 8 of 11

Re: Dolby Home Theater v4 = lower sound quality

2013-08-06, 22:12 PM

hi

 

Yes, DHT and the Realtek EQ both has Multi Band controls that let's you fine tune the audio

Are you using the driver from the Realtek website?, that may be the reason why you dont have the folder for Dolby.

 

I would suggest doing this and I'm sure you'll have DHT Back.

 

Make sure to un-install the Audio driver first under Device Manager

   > Open device Manager

   > Go to sound, video and game controllers

   > Look for Realtek High Definition Audio / High Definition Audio

   > Right click on it and select uninstall put a check on Delete the driver software for this device

 

Check you Control Panel / Programs and feature / Uninstall a program list for any Realtek Audio and any DOLBY APP.

If non then just proceed to the next step,

 

Download and install this

Windows 7 Realtek Audio Driver
Windows 9 Realtek Audio Driver
Windows XP Realtek Audio Driver

 

After installation go to Your Drive "C:" under My Computer then go to

               /Drivers

                    /Realtek Audio Driver

                              /PCEE4

You should find the DHT installer there

 

After that you should have the Dolby EQ Settings,Best Regards

 

Thanks and Best Regards

Solid Cruver



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  • Message 9 of 11

Re: Dolby Home Theater v4 = lower sound quality

2013-08-06, 23:13 PM

There's the catch. That's the Realtek driver from lenovo site, I have DHT, but it sounds just awfull.

 

That's how it looks.

 

example

 

And that's how it sounds. 

 

http://www48.zippyshare.com/v/79508303/file.html

 

 

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  • Message 10 of 11

Re: Dolby Home Theater v4 = lower sound quality

2013-08-07, 14:30 PM

hi

 

I see, that's a really big difference,

 

Have you tried adjusting it to through the custom EQ settings/

Go to Control Panel, Im sure you'll find a Dolby icon there to access the settings.

 

 

Thanks and Regards

Solid Cruver



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