I converted it to mp3 for space economy reasons but there is no audible difference between wav and mp3.
Quote from: hrehor on 20 December, 2012, 05:43:22 PMI converted it to mp3 for space economy reasons but there is no audible difference between wav and mp3.Repost the original WAV and we'll have a better chance of diagnosing the problem.
Digital dropouts due to resource starvation in the recording PC nearly always result in instant (single-sample) spikes or steps in the waveform, but because of the MP3 coding there is no chance of seeing this. So while I *suspect* this crackling may be due to some kind of digital dropout, there is no way to be sure.The distortion only happens when the lady is actually speaking - not during the gaps. So it may be that some analogue circuitry (or the microphone itself) is being overloaded. That said, digital dropouts tend not to be so audible on low level signals, so it could be that they are present but not noticable.
But it's not—if you look at the waveform, there are step changes that really only point to chunks of audio having been deleted somehow, in the digital domain.
A major problem is missing samples. This results is the cracking sounds. It is rather common from a computer that has not been set up for real time capture.After that the recording environment gets to be important. External noise and sound reflections can make for a poor sounding result. One has to built a proper area and/or learn where to place the speaker and microphone for best acoustics.