[comp.sys.atari.st] Audio in line on monitor port; also Clock line question.

jbww@ukc.ac.uk (J.B.W.Webber) (10/04/90)

In article <1990Oct3.064347.10203@monu6.cc.monash.edu.au> you write:
>
> In the documentation that came with my 1040STFM, theres a pinout
>on the monitor port labelled as 'audio in'. I havent heard of anything,
>software or hardware that uses this, and I dont even know what it does,
>if anything. Does anyone know what it can be used for, and if so how
>can I go about it ?

	Sound injected into this gets mixed with sounds from the noise
	chips in the ST (and the DMA sampled sound in the STE), and come
	out the 'audio out' port. Simple.

> I was hoping thered be someway to digitise with it, with the addition
>of little or no hardware support.
>
>  Mithrandir.

	Would it not be nice ?
	Seriously, it is useful to have the pin there; it means one can
	hang sound samplers inside the case, rather than dangling in the
	cartridge port. Still need extra connectors if one wants to add
	samplers of stereo sound.

Question:
	What are the pins on the Monitor jack of the STE, labled 'clock' ?
	(I think I did hear, but can not remember ...)

		cheers,
			J.B. Webber  ukc.ac.uk  Physics, University of Kent.