Hello, when i play a sound file like mp3 or wav with MediaPlayer or anything like this, i would like to get the volume level of the sound card in real time. The data is then sent to the serial port. How do i get this data. I tried to find some samples in msdn or internet but i couldn t find any useful code. There is the winmm.dll which supports calls to waveIn and waveOut but all the samples use them to set or get the master volume. That is not what i need. I thought i found a sample in msdn, but this doesnt work. Is directX a way to solve this problem? Can anybody help me??