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Video: Voice chat in the modem era?

🕑 Added 2023-05-04 17:46:34 +0000 UTC

Comments

Gecko089

Audio is actually fine, I expected much worse after your introduction. I rather think it more or less represents what you could expect at the time from strange devices like this.

Henry O'Keeffe

Based on the block diagram at 41:09, ASVD does actually QAM the analog signal too, then shifts the phase of this signal out of the way of the digital signal before adding them together. I guess demodulation separates the two signals by their phase, and not really by any natural ignoring of the other as what would normally be noise.

Strawberry Puptart

I don't need a telephone line tester. I don't need a telephone line tester. I don't need a telephone line tester...

Don't know if you tried this already but I had a similar issue with a modem being able to pick up and dial but just getting silence over the line no matter what I did. I eventually figured out that near the phone jack there's some weird looking electrolytic capacitors that had started leaking and once I replaced them the modem started working. They look like little black rectangles and are laid down against the board