Chapter 7. Disc and Tape Recording
Historical outline of sound recording from Edison and Berliner systems. Electrical methods for shellac disc recording. Development of vinyl discs. Compression and equalizing systems. Hi-Fi and stereo. Loudspeakers - woofers and tweeters. Stereo balance. Historical evolution of tape recording. Tape and cassette recording. Tape as a non-linear medium. Ultrasonic bias for tape recording. Development of cinema sound. Sound tracks on movie film. Variable width and variable brightness optical analog recording systems. Photocell as a replay transducer. Magnetic recording systems for movies. Modern digital optical systems. Home cinema setup. Problem of noise on recordings. Noise reduction system for analog recording. ...