tape "load and save" to a PC/Mac

From: spectre at floodgap.com Subject: Re: tape "load and save" to a PC/Mac To: cctalk at classiccmp.org Date: Wed, 18 Nov 2009 06:04:41 -0800 The Tutor doesn't save tape as FSK or KCS; it's actually just pulses, i.e., -||-|--|-||-|--|-- It reminds me more of the Commodore Datasette than the Texas Instruments machines the Tutor was descended from, actually. The trick with decoding it wasn't per se figuring out the frequencies, it was figuring out what pulse pattern meant which bit, and then shuffling the bits around until I got some sort of framing that made sense. But that's what makes the playback problem mystifying because this should be very simple to generate and play back. I don't see what a filter would do to help here necessarily unless I'm misunderstanding the alleged purpose. -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- LOAD"STANDARD DISCLAIMER",8,1 ----------------------------------------------