acoustics american federation of musicians ampex amplification amplifier analog recording audio editing audio mastering audio mixing automaton barrel organ barrel piano berlin berliner gramophone binary numeral system bing crosby blu-ray disc brian wilson broadcasting cbs compact disc computer software corrosion dvd data transmission decca records digital audio digital audio player digital recording dolby noise reduction system dynaco electromagnetic interference electronics emile berliner ernest ansermet fairground organ film industry flanders flanging flute frank zappa george martin germany gramophone record guglielmo marconi hd dvd headroom high fidelity history of sound recording how high the moon hydropower igor stravinsky internet radio jvc judy garland karlheinz stockhausen lp album lee de forest les paul limiter loudspeaker magnetic flux magnetic tape magnetic tape sound recording magnetophon mechanics microelectronics microphone microsoft windows mike oldfield multitrack recording musical box musical clock pet sounds philips phonautograph phonograph phonograph cylinder piano roll pink floyd pittsburgh press player piano pop music professional audio radio ray dolby receiver record industry recording studio regenerative circuit reverberation scms shellac solar cell sony sound sound-on-film stereophonic sound super audio cd superheterodyne receiver synchronous motor tape recorder television the beach boys the beatles the dark side of the moon thomas edison transistor transistor radio transmitter triode tubular bells university of alabama at birmingham valdemar poulsen vinyl walkman walter legge world war i