Flash Player doesn't record on web pages like livemocha

Hello! I've tried to follow the troubleshootings that are already available for this problem but haven't been able to solve it. Flash player on webpages like livemocha (using Google Chrome or Firefox), it does in fact recognize my analog microphone (headphones with microphone) but the bar does not move up and down (as show on the picture below) the same happens in other webpages like vocaloid.com. Therefore it doesn't really record anything. I already tried unistalling and reinstalling flash player and it still doesn't work. I also saw in a forum that the newer versions of flashplayer do not work well with analog microphones and that I would have to buy a usb one, is that true?. I don't know what to do anymore and I'm really frustrated, please help me!