audiotape vs telerecord

audiotape

verb
  • To record onto audiotape. 

noun
  • A magnetic tape that stores analog sound for later playback on a tape player. 

  • Any of a cassette tape, eight-track tape, reel-to-reel tape, DAT, etc. 

telerecord

verb
  • To record by means of the technique called telerecording. 

How often have the words audiotape and telerecord occurred in a corpus of books? (source: Google Ngram Viewer )