Computer software for adding run-time control features to digital audio files; computer software for enhancing the quality of digital audio files; computer software for enhancing the quality of voice recording into digital audio files; computer software for transmission of voice audio files wirelessly or over computer networks; software for enhancing quality of digital video files; CD players, DVD players, set top cable boxes, satellite receivers, video game consoles, digital audio-video recorders, digital audio-video players, digital audio players, cell phones, televisions; PDAS, handheld computers, laptop computers and computers