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kfrn / reel-time

Calculate the duration of your open-reel audio.
https://kfrn.github.io/reel-time/
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5: Add quadrophonic as an audio config type #14

Closed kfrn closed 6 years ago

kfrn commented 6 years ago

Addresses #5

Quadraphonic was a four-track surround-sound format. All tracks were recorded in one direction and the assignment was: (tracks 1-4) Left, Right, Left Rear, Right Rear.

Corey Bailey informs me that commercially recorded quadraphonic was typically 7.5ips.

Another side note which I meant to include in the commit message for the 3" reels commit: also per Corey Bailey, 3" reels were most often recorded at 3.75ips, and are likely to be half-track mono.

CoreyBailey commented 6 years ago

I Approve! You might want to check Wikipedia for some history on the format: https://en.wikipedia.org/wiki/Quadraphonic_sound ~CB

kfrn commented 6 years ago

Thanks very much @CoreyBailey & @retokromer!