Headphone or Headset. Which did you use? I don't know your platform has headset mic support or not.
I use headphones (no mic). I suppose my laptop should support a mic, because there is an icon next to the headset socket which shows a headset with a mic.
Could you record sound via headphone?
I want to know how the voice distortion.
I've run some experiments to determine the nature of the distortions, and I found that on affected kernels, what I'm hearing is the difference between the left and the right channel of what is playing. So, if I play a mono sound, I hear nothing at all (or rather, almost nothing). If I manually mute one of the channels, I hear the sound normally (through both ears, while on older kernels muting individual channels actually works). If I invert one of the channels, I hear the sound normally as well. If I play a stereo sound (for example, a music track), I hear distortions.