Question about HP Computers & Internet

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I could not get my mic to wrk on my hp laptop so i did this and now my conexant audio system is replaced by microsoft high definition audio device, still no mic and now my headsets dont work either pls help how do i undo ny cockup. 1) Open regedit (Start->Run, type regedit) 2) Navigate to HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E96C-E325-11CE-BFC1-08002BE10318}\0000\Settings\filter\SpeakerHp\ 3) Create a new Binary Value 4) Give it the name EnableInputMonitor 5) Set it's value to 01 6) Restart your machine 7) Open your Playback Devices (right click on volume control icon in system tray, select Playback Devices) 8) Open the Speakers/Headphones 9) Go to the levels tab 10) Unmute the input monitor There you go, you can now hear your microphone on your speakers.

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  • dmwoodbridge May 15, 2009

    Bottom line I cannot get my mic to work on my hp laptop i have conexant audio system 221 there is no line in facility and it seems the mic is muted by default, There is no box to tick unmute and i want to use it with a karaoke cd with my headset and microphone, also the same thing applies to Skype or Yahoo chat, unable to hear myself talking in the headset, though they can hear me and i can hear them.

  • dmwoodbridge May 15, 2009

    THE PROBLEM IS THERE IS NO LINE IN FACILITY NOR A MUTE/UNMUTE FACILITY IN THE AUDIO SOUND RECORDING BOX. There is no documented way to enable the input audio monitor. As it turns out, there was apparently a group of people colluding in secret (recording industry and other large notebook manufactures) to limit copying of music... best I can tell because this functionality turned out to be DELIBERATELY disabled in my notebook's driver setup. Your answer does not solve the issue at stake.

  • dmwoodbridge May 15, 2009

    Done that twice already and the issue still remains. Can you suggest any change I can make in the registry to overcome this problem, the main problem is the internal mic cannot be unmuted due to there not being a facility to enable that to be done.

  • dmwoodbridge May 15, 2009


  • dmwoodbridge May 15, 2009

    Vista Home Edition 32bit

  • dmwoodbridge May 16, 2009

    Thats absolute rubbish, if i did that my warranty would be invalid, HP already stated that the mic is muted by default and it's an issue they are looking at, it has nothing to do with soldering a short,

    I've tried all the solutions I can think of...followed the trouble shooting
    guide, but when I open up the Speaker Properties, and go to Levels to see if
    my microphone is muted....all that's there is the volume phone line,
    Line In, Aux, Microphone.... so please don't suggest fixes that are totally innapropriate, whats needed is registry change if i could find anything related to linein muted or mic muted then probab;ly that would suffice.


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Go to the hp website and download the latest drivers for your laptop , audio, chipset drivers etc and put those onto a cd or a memory stick ( some storage device ) ready for the next part

reboot into safe mode and un install all the audio devices ( head phones software ) the lot !!

Re install the drivers in safe mode if possible and reboot , if not reboot back into normal mode and re install them there.

Once you have the correct drivers for your model of laptop from the hp site that should rectify that , obviously you will have to re install the drivers / software for your headphone set etc but the microsoft high defintion has obviously altered some critical settings which you are not aware of and wont know about and the best way to fix it is to un install it completely and re install the correct drivers.

You can edit the registry as much as you like but because you did not have filemon and regmon to hand you will never know what keys were changed and what there default values where or anything so you are most likely wasting your time in the registry.

Don't stress out about it as its not worth it.

If the above does not work then your best bet ( as it will most likely need it from time to time anyway ) is to backup your laptop ( data, etc ) and then just do a fresh install and re install the lot.

Obviously only doing that as a last resort

Posted on May 16, 2009

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You are absolutely correct .that is no unmute option for internal mic option in the laptop.but if the mic section the assembly fitted in the latop ,if that is short or not working.the noise will not come from mic or from the head phone connected to the mic externally.i mean to say its not any software or driver or any false setting problem.its the hardware problem in the just get your mic section circuit checked by a locval repair technician.there will be definately a minor short circuity in that circuit .due to that the mic is not working and supporting will just require a mini soldering job to be done by opening the laptop .this is common problem in many laptop ,the mic assembly gets short internally.
it will get started after this.the cost of soldering will be very negligible.this will help you.

thanks.please do rate the solution.thank you for using fixya.keep updated.

Posted on May 15, 2009

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Hi, well mate u have described the problem in a confusing way. Please make it more clear as last few lines are quite confusing.
Thanks! Sandy

Posted on May 12, 2009

  • 3 more comments 
  • Sandeep Gupta May 15, 2009

    start > programs > accessories > entertainment > volume control.

    turn the volume up all the way and make sure they're all unmuted. if you dont see the microphone volume go to options > properties and make sure options > advanced controls is on


  • Sandeep Gupta May 15, 2009

    well tyr to update ur laptop audio driver


  • Sandeep Gupta May 15, 2009

    try this
    Go Control Panel
    Select Microphone
    Click Set Default

  • Sandeep Gupta May 15, 2009

    also try this
    [1] --> Right Click the Volume Icon at the bottom right corner of your screen [The Task bar].
    [2] --> Click [Playback Devices]
    [3] --> Right Click the [Speakers] Icon and click Properties
    [4] --> Click the [Levels] Tab; and there you will see the Microphone Volume slider (The one at the very bottom of the "HD Audio output" and "PC Beep" sliders where you can un-mute the mic playback (By clicking the unmute icon

  • Sandeep Gupta May 15, 2009



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