[ Loudspeaker; ] Headphones; Sound card; Surround sound processor; Audio signal processor; [ Digital audio synthesizer being electronic devices that generate a range of frequencies from a single fixed timebase or oscillator; ] Computer software for Sound Processing; Downloadable Computer application software for Sound Processing [ ; ] [ Integrated circuits; Semiconductor component; Semiconductor chip; Microprocessors; ] [ Electronic circuit; Micro circuit ] [ ; Central processing units; Sound...