Audio Tape Counter / Time Conversions (2418C)

[David Hayden]

This program lets you convert between an audio tape machines counter value and elapsed time. Most audio tape counters are proportional to the number of revolutions of one of the reels rather than the actual elapsed time. It works with any such tape machine (cassette, reel-to-reel, whatever). This is #2418C in the User's Library, written by me when I was about 17.

It is similar to "Tape Deck Time Remaining" in PPC Calculator Journal V6N2P8, including similar derivations of the math involved. I just found the article a few days and it inspired me to revisit 2418C.

The attachment includes recreated documentation in the style of the original UL program forms, along with .raw files that can be imported into an emulator or DM42, or converted to barcode or text listings via HP41UC.

I also fixed a bug in the initialization program which somehow the multitudes of users never found over the years.

[Ángel Martin]

(03-04-2020 02:57 AM)David Hayden Wrote:  I also fixed a bug in the initialization program which somehow the multitudes of users never found over the years.

Never too late to catch those critters!

Thanks for sharing the program.