Recording Technology

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Across
  1. 3. sony’s 1980 portable cassette player making music travel‑friendly
  2. 7. 1932 patent to W. _______ Jones for stereophonic groove with right and left channels
  3. 9. original _________ jazz band’s 1917 victor session launching jazz recording
  4. 12. Walt Disney movie with first four‑track commercial audio
  5. 14. philips introduces the compact _____ ____in 1963 enabling dolby noise reduction
  6. 15. philips and sony introduce cd (______ _____) format in 1983 shifting industry to digital
  7. 17. recording 1925 introduction of wide‑range __________ recording by columbia and victor
  8. 18. first commercial _____ lp issues in 1957 on the audio fidelity label
Down
  1. 1. columbia’s 1948 33⅓ rpm lp (or "_____ ____ ________") introducing a new format war
  2. 2. emile berliner's 1887 lateral‑cut disc recording invention
  3. 4. spring‑motor phonographs released by edison and columbia in 1896 at __________ prices
  4. 5. edison’s 1877 machine that recorded and played back sound on tinfoil
  5. 6. The material used in Edison's improved Phonograph (1886)
  6. 8. first recorded sound device invented by scott de martinville in 1857
  7. 10. apple’s digital music ecosystem enabling downloads and portable playback
  8. 11. victor releases landmark recordings of Enrico ________ in 1904
  9. 13. first commercial flat disc _______ issued in 1894 sparking the first format war
  10. 16. first practical magnetic tape recorder shown in 1935