I'm making MP3 recordings from live online music streams. I record 10-12 songs, then split them into separate files. Lately, each song seems to start with some hum (like the recording is amplifying to search for some sound before the track starts), then, when the song starts, it clips (very briefly spikes), then it balances to normal. This is not happening at the source. The result is that after the spike the rest of the recording is too quiet. I can manually normalize it after the spike easily enough, but I'd prefer it just record the entire song at the level I decide in the first place. Any suggestions?