Subject: Re: [stella] Closed Captioning Query From: "Eric Ball" <eball@xxxxxxxxxx> Date: Thu, 29 Aug 2002 15:56:42 -0400 |
I did some thinking about this last night. And I think the best chance is to create a simplified waveform using the playfield. The first thing I realized is even the player graphics are limitted to two levels, so any synthesized waveform would be a square wave. This also may mean that the playfield graphics would be as good, as long as the decoder isn't extremely timing sensitive. (Which Glenn seems to be suggesting.) Re-reading the info I have, I just realized that each cycle of the clock run-in is, in fact, one bit width. So I was incorrect in saying that the data bits are modulated. (And my calculations in 2 are very wrong.) So each bit is either the presence or absence of a cycle (with 0deg=0IRE and 180deg=50IRE). Which means the playfield is eligible, depending on how much the decoder requires a sine wave. ---------------------------------------------------------------------------------------------- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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