This may be caused
from several reasons.
1, Run the command "sndvol32.exe /r" from
your computer's "Start -> Run ..." .
Then the recording control panel window
will appear, make sure
* check the right device, most situations
you should check the "Stereo Mixer" device,
if you record from microphone, then you
should check the "Mic" device.
* Uncheck the "mute"
* Set the volume to a higher value
2, If the above step does not help,
please launch your computer's control
panel from "start -> settings ->
control panel", then double click the
item "Sounds and Multimedia", adjust the
hardware accelaration to none. Do not
use the hardware accelaration feature.
And try it again.
3, It the above steps still do not help,
besides the above settings, your media
player or other applications may also
have hardware acceleration options. Make
sure to set the player's or other application's
hardware acceleration property to none
too.
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