Audio/Sound Devices

I have accidentally deleted my Audio/Sound devices on my Pavilion Dv4-1413TX. Now, I am not able to hear any sound from my com. It says that I have to install some kind of devices, and I'm not sure. Can anyone help me, please?

Hi,
The easiest way to solve this may be to run Windows System Restore.  If you have Norton Internet Security installed, you will need to disable Nortons Tamper Protection as shown in Step 2, on the link below.
http://us.norton.com/support/kb/web_view.jsp?wv_type=public_web&docurl=20091112171719EN&ln=en_US
Once you've done this, shut down the PC.  Windows System Restore is usaully best run in Safe Mode.  Tap away at f8 as you start the PC to enter Windows Recovery Console.  Use the arrow keys to select Safe Mode and hit enter.  When this has loaded, from the Start Menu, click All Programs, click Accessories, click System Tools and launch System Restore.  Pick a restore point before the Audio Driver was deleted and then proceed with the restore process.  When complete, Windows will reboot as normal.
Regards,
DP-K
****Click the White thumb to say thanks****
****Please mark Accept As Solution if it solves your problem****
****I don't work for HP****
Microsoft MVP - Windows Experience

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    ****Click the White Kudos star to say thanks****
    ****Please mark Accept As Solution if it solves your problem****

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    This should make a big difference in sound volume and quality, and there is one last way to get louder sound. Depending on what you use to play back your audio you can adjust the program’s sound settings or EQ controls also.
    In iTunes the EQ has a 'preamp' slider which I boost to about +6, this increases the output level while leaving the EQ settings alone (make sure to check the turn EQ on box).
     Windows media player:  you have to raise all EQ levels equally (not too much) to boost without affecting sound quality.
    In general it is not a good idea to use more than one EQ system in an audio signal or you get more distortion, so don't adjust the EQ curves or bass/treble on more than one device.  I chose the Beats / IDT EQ to make the tonal adjustments because it is the audio driver program and preamp that outputs to the speakers, so it should have the best sound quality.
    Any adjustments before the preamp that add distortion will just be amplified, so go easy on adjustments in your play back programs.
    Finally, when you play your audio,
    Sound > Open Volume Mixer >
    Make sure to click the Sound logo in the Taskbar so the slider pops up>
    Click ‘mixer’ then you should see all the sliders for your devices;
     You can independently adjust the levels for the right mix.
    If you open the Beats panel and minimize it then a mixer slider also shows for this and you can dial in the effect of the EQ settings.
    Headphones:
    One last thing; When listening to headphones you will need to increase the bass EQ setting (since headphones can reproduce the low frequencies) in the Beats panel or I just change the drop down selector to the one with a flat curve (beats studio I think) -- the volume for my headphones was not an issue so I defeat the EQ for better sound quality.
    Whew. I Didn't think it was this complicated when I started typing....
    Hope everyone enjoys better sound with this.
    JJ 
    ENVY 15 l i5 540M l ATI 5830 GPU l 8GB DDR3 1333 l 2 x 160 GB SSD l 1920x1080 glossy l Win7 Pro l 10,273 3Dmark06   Last edited by JJB : 12-27-2009 at 03:41 PM.
    End of Excerpted Post 
    Credit belongs to the original author of the original procedure:
    JJB from HP beats-audio / Sound Reset Procedure 
    Part Two
    Loudness Equalization – and the LOW Sound Result
    I was testing the system sound… CD playing in the background: Sting “If on a Winter’s Night” 02 Soul Cake playing through iTunes – standard speakers-headphones (beats-audio coasting along). 
    Sounds -> Playback Devices -> Speakers and Headphones -> Properties -> Enhancements 
    I have rewritten this part three times trying to get it right. Here’s the gist:
    I switched on the “Loudness Equalization” enhancement.  The sound jumped; it was loud and distorted.  I switched the enhancement off – the sound dropped off and didn’t come back.  I turned up the volume (with the slider) and down and up and down – and I was hearing Less and less sound from the speakers:  “Low Sound Syndrome”:  I was hearing what would be expected at setting of 7%.   Well, that sucks.  (Technical term.)
    Based on this experience, I hypothesize that it’s possible to lose one’s sound entirely just by initially adjusting this one enhancement and then losing control over the ensuing ever diminishing returns.  I didn’t continue to test this into a theory.  It’s a hypothesis.  If I had an extra dv7 sitting around, I might sacrifice it on such testing.  I gave up right away and went into recovery mode while I still had some sound.
    Recovery:
    After the Loudness Equalization was turned off,
    Recovery Attempts to recover normal sound levels included:
    Resetting all Sound to Default settings,
    Installing the driver from the webpage (standard load – download, double-click and install), reboot,
    “Hard Reset”. 
    It was finally necessary to force load the IDT HD driver to recover the sound to its normal levels; that is, the driver was Uninstalled and allowed to reinstall at boot.  (“Local” install from the Device Manager also works.)
    Commentary:
    I did not bother with a registry cleaning at this point - it may have made a difference, though it's unlikely since the driver needed to be completely reset by this time.  I advocate registry cleaning!  Bad things happen to good computers because of a dirty registry.  Use your favorite or download CCleaner (free).
    Try a Driver Update:
    You can always check for Driver updates here – If the driver does update - you may be done with this part.  Check the sound and proceed to "Enhancements".
     At the Right-Click > Update Driver Software
    Audio Driver “Uninstall”
    Control Panel -> Device Manager -> Sound, video and game controllers
              Right-Click   IDT High Definition Audio CODEC -> Uninstall
    You have a choice at this point
    If you do not have the means to replace your driver,
    THEN do not delete your driver from the computer
    OR - If you believe the driver is not working at all,
    And / Or you have tried the standard Uninstall/self-install method previously without results,
    AND You have the means to REINSTALL that driver from scratch*
    Then you may delete the driver -
    *Driver Installation From Scratch Requires the following:
    You have your IDT HD driver on your computer as a sp*.exe file, for example, in Downloads
    Reinstall with Boot:
    Shut down the system
    Reboot
    The driver may install itself at login as the system scans for hardware changes
    OR
    Reinstall WITHOUT BOOT - Initiate the scan for hardware changes:
    Right-Click on the IDT driver , >  "Scan for Hardware Changes"
    --> Check your sound at this point.  It's possible that the driver has in reinstalled itself.
    Manual Driver Installation - Comments:
    There are a couple of paths used to get the IDT driver onto your system.  You can download it from your HP Software and Driver website.  You may have been given the path to your IDT driver at the HP ftp softpaq site.  The package is downloaded as a sp*.exe file.   You may download the software as often as you need it.  Make sure you have the package downloaded before you delete your driver.
    Once you have downloaded that package onto your system, the original sp* file will stay intact.  As long as you do not delete it, you can reuse it.  Once you do install the driver onto your system, an installation directory is created in C:\SWSetup, named the same as the sp* file (without the .exe extension). 
    In C:\SWSetup\sp* are all the files necessary to reinstall your driver.  If you install the software from the sp*.exe file in your Downloads folder, the new installation will ask you whether to overwrite the data in the SWSetup/sp* with the contents of the .exe package – do it.  The reinstallation is just unwrapping and redistributing what’s in the .exe file into the same SWSetup/sp folder. 
    If the "Driver Store" is removed, that is, if the driver package is ever removed from C:\SWSetup, you can reinstall from the sp* file as long you you have it in your Downloads folder - it will recreate that SWSetup/sp* folder.
    What about Versions?
    Latest is Usually best.  If you are concerned AND you think you may not be able to get another a copy of an older driver that is in C:\SWSetup\sp*, make a copy of the folder before uninstalling any driver or making any changes.
    Installation from the Original sp* package
    Find the sp* file on your system.  It will be most likely be located in your “Downloads” folder.
    Simple Driver Installation from the 'Saved' installation sp* file:
    Close everything that isn’t needed, browsers, games, windows…
    Right-Click on the installation package (the sp* file), Select 'Run as Administrator' and start the installation
    Answer any questions…and follow the instructions
    or...
    Installation from the Device Manager
    If the driver software is still on the system from a previous installation, it is located in C:\SWSetup
    You can tell the Device Manager to access the package on the system:
    Control Panel > icons > Device Manager > (Highlight) IDT High Definition Audio CODEC >
                          Right-Click > Update Driver Software > Browse my computer for driver software
                          Browse to C:\SWSetup\sp*
                          Be sure the “Include Subfolders” box is CHECKED
    27-Nov-2011
    Audio Services Check / Restart
    This section is not strictly part of the "Enhancement" procedure.  It has been included because it is necessary that these settings be correct so that the sound can function properly.  If you are not having sound issues, skip this part...
    Check system Services to make sure that your sound related services are running as they should.
    Restart each service (except as noted):  Right-Click > Restart
    Control Panel -> icon -> Administrative Tools -> Services > bottom of page > Standard (optional - makes it easier to column sizes)
    Sound services must be showing as
    Status = Started
    Startup Type = Automatic
    Sound Services:
    Audio Service
    Multimedia Class Scheduler
    Windows Audio
    Windows Audio Endpoint Builder
    Power (check only)
    RPC (check only)
    That’s it.
    It’s a matter of tweaking the settings to get results.  Do not forget that that Left/Right Speakers setting is turned off in Speakers Configure.  It’s not a big deal (assuming this works), but it’s DIFFERENT and it needs to be kept track of.
    I hope this helps your sound work better!
    Kudos are Earned!
    Kind Regards,
    Dragon-Fur

    Nice extensive research on reseting Beats Audio on the HP laptops.
    Just bought the Envy 17t-3000 and I updated all the drivers via HP Support Manager.
    BEFORE the update, the Beats Audio worked well..
    1. Press the dial and the popup box comes up ~3 secs
    2. Volume indicator swirl appeared to show volume level
    AFTER the update, something changed the Beats Audio... had to re-install the latest driver from HP website (even after contacting HP Tech support via chat and email several times)...
    1. Press the dial and the popup box comes up ~10-12 secs now!
    2. Volume indicator swirl DISAPPEARED so volume level indicator is GONE
    Sure the sound works but NOW I do NOT know or remember the volume level whenever I listen to music.
    You can barely tell on the Windows Speaker icon on Icon bar since 2 sound waves indicate at least 50% sound level but that's it!
    I have the following softwares and checked their settings and set them all at 50% and use the Beats Audio dial to control the volume whenever the programs are used:
    1. WinAmp
    2. VLC player
    3. MPC
    4. WMP
    No matter what I try, it appears that the Beats Audio Volume Control Swirl Indicator is GONE! Worse, there's NO Windows volume control indicator unless leave the Volume Mixer open!
    Anyone know how to fix this problem and bring Back the Audio Beats volume indicator??
    Thanks!

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