Apple II built-in audio digitizer

Following a recent 8-bit guy's video reviewing external audio digitizers for the Commodore 64 and Apple 2 computers, this video reviews the capabilities of the Apple 2's built-in audio digitizer.

The channels' usual topic is project CompuSAR, which aims at building 70's and 80's computers on a low-end FPGA. Most of the project works from scratch, and this channel half documents the progress, half teaches about the concepts that come into play when designing such a system.

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Licensed under Creative Commons: By Attribution 4.0 License

[summersbco]

Great video. Count me in as one who would like to see your digitization code written!

[markusjacobi-piepenbrink]

I‘ve seen this in an old issue of the mc magazine - so cool! Is there any way to do it on an apple iic too?

[williamdrum]

Cool stuff! I was just learning how the beeper works and then I saw this. Didn't even think you could record it from the tape deck. (I don't have a real Apple II so I don't know if I can try this on an emulator)

[vanhetgoor]

One bit digital audio has only one problem, the Huffman Lossless coding and Lempel Zif Welch error correction needs also one bit, but they need that very bit more urgent. Therefore half of all data is spoiled, a zero means there is no sound. A one means that there is a noise so loud the speakers hardly can survive.

The magnificence and the splendar of pure digital audio did not reach computing in the early days.