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How to get PCM data from microphone in C++ (os Windows)?


How to get PCM data from microphone in C++ (os Windows)?

By : user3850099
Date : October 20 2020, 11:12 PM
wish helps you You can do this with the waveInOpen() and waveInStart() API functions. There's a sample project available here.
code :


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Windows Mobile PPC Microphone

Windows Mobile PPC Microphone


By : user1001853
Date : March 29 2020, 07:55 AM
Hope that helps I am pretty sure that this is NOT what you want to do. Just collect and discard the samples when ptt is not activated. There are a variety of reasons for doing it this way, the biggest of which is that you will be mich more responsive (you can start sending samples as soon as you receive the button press event, otherwise, you have to wait for all the hardware changes to take effect.
Mute microphone on Windows 7

Mute microphone on Windows 7


By : sdfdg56
Date : March 29 2020, 07:55 AM
will be helpful for those in need http://www.computercabal.com/2010/11/mute-microphone-from-c-on-windows.html -- this gentleman appears to have had a similar problem, and he's provided the source code for a solution.
How turn off microphone in windows c++

How turn off microphone in windows c++


By : van duc nguyen
Date : March 29 2020, 07:55 AM
Hope that helps I wand make code for turn off my microphone ( it make whitenoise), how i can do it by vc++ (not .NET)? , You can use below snippet, it should work for you...
code :
void setVolume(DWORD volume) {
HMIXER mixer;

if (mixerOpen(&mixer, 0, 0, 0, 0) != MMSYSERR_NOERROR) {
    MessageBoxW(NULL, L"Error: mixerOpen()", NULL, MB_ICONHAND);
    return;
}

// Get the line info
MIXERCAPS mixcaps;
MIXERLINE mixerLine;
mixerGetDevCaps(0, &mixcaps, sizeof(MIXERCAPS));
mixerLine.cbStruct = sizeof(MIXERLINE);
mixerLine.dwComponentType = MIXERLINE_COMPONENTTYPE_DST_WAVEIN;
mixerLine.dwSource = 0;
mixerLine.dwDestination = 0;

if (mixerGetLineInfo(reinterpret_cast<HMIXEROBJ>(mixer), &mixerLine, MIXER_GETLINEINFOF_SOURCE)
    != MMSYSERR_NOERROR) {
        MessageBoxW(NULL, L"Error: mixerGetLineInfo()", NULL, MB_ICONHAND);
        return;
}

// Get control for mixerline
MIXERCONTROL mixerCtrl;
MIXERLINECONTROLS mixerLineCtrl;

mixerLineCtrl.cbStruct = sizeof(MIXERLINECONTROLS);
mixerLineCtrl.dwLineID = mixerLine.dwLineID;
mixerLineCtrl.dwControlType = MIXERCONTROL_CONTROLTYPE_VOLUME;
mixerLineCtrl.cControls = 1;
mixerLineCtrl.pamxctrl = &mixerCtrl;
mixerLineCtrl.cbmxctrl = sizeof(MIXERCONTROL);
mixerLineCtrl.cControls = 5;

if (mixerGetLineControls(reinterpret_cast<HMIXEROBJ>(mixer), &mixerLineCtrl, MIXER_GETLINECONTROLSF_ONEBYTYPE)
    != MMSYSERR_NOERROR) {
        MessageBoxW(NULL, L"Error: mixerGetLineControls()", NULL, MB_ICONHAND);
        return;
}

// Volume..
MIXERCONTROLDETAILS mixerCtrlDetails;
MIXERCONTROLDETAILS_UNSIGNED mixerCtrlDetailsUnsigned;

mixerCtrlDetailsUnsigned.dwValue = volume;
mixerCtrlDetails.dwControlID = mixerCtrl.dwControlID;
mixerCtrlDetails.cbStruct = sizeof(MIXERCONTROLDETAILS);
mixerCtrlDetails.cMultipleItems = 0;
mixerCtrlDetails.paDetails = &mixerCtrlDetailsUnsigned;
mixerCtrlDetails.cbDetails = sizeof(MIXERCONTROLDETAILS_UNSIGNED);
mixerCtrlDetails.cChannels = 1;

if (mixerSetControlDetails(reinterpret_cast<HMIXEROBJ>(mixer), &mixerCtrlDetails, MIXER_OBJECTF_HMIXER | MIXER_GETCONTROLDETAILSF_VALUE)
    != MMSYSERR_NOERROR) {
        MessageBoxW(NULL, L"Error: mixerSetControlDetails()", NULL, MB_ICONHAND);
        return;
}

mixerClose(mixer);
}
Getting raw microphone data on the Windows Phone?

Getting raw microphone data on the Windows Phone?


By : Joao Pedro
Date : March 29 2020, 07:55 AM
hop of those help? not sure if you are familiar with Dealing with micrphone in WP7 or not but you can check this blog post for a full detailed tutorial :
you initialize a buffer with the size of the data :
microphone in windows 10 in virtualbox

microphone in windows 10 in virtualbox


By : shanu badala
Date : March 29 2020, 07:55 AM
help you fix your problem In VirtualBox open the settings for your Windows 10 machine Go to Audio > Audio Controller, change to "ICH AC97" Boot your Windows 10 machine and disable driver signature enforcement Go to Realtek's website, download and install the AC'97 audio codec/driver for Vista/7 ("Vista/Win7 (32/64 bits) Driver only (ZIP file)") onto your Windows 10 machine (run setup.exe after unzipping) Reboot Windows 10 and you should be done
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