Amiga Serial Port Audio In/Out

[Hodgkinson]

They're just pass-through, I’m afraid. The first time I looked at the pinout I was also hoping that there was some kind of in-built digitiser.

Without going into all the detail of where the signals come from and go to within the Amiga, basically the audio out pin picks up the left-channel audio output from the Amiga. The audio in pin takes any incoming audio waveform and mixes it onto the Amiga's right audio output channel (Intended for modems, I think).

Along those lines, when I built a set of AAA test dongles for my Amiga’s I fitted the serial dongle with phono plugs for those pins, just in case I ever wanted a fast way to hook up to them, see http://www.amiga.org/gallery/index.php?n=2481

Hodgkinson.

[Hodgkinson]

 :rtfm:  :-D

[Hodgkinson]

I managed to wire a packet modem to use the “audio in” rail for indication ;-) But that’s about it.
The audio input rail is the only one that is marginally useful, as for the audio output I have no idea what it could be used with.

I also wonder why they didn't just fit a "standard" pinout serial port identical to that on PC's, without the additional audio and power rails for compatibility's sake.