Talk:Sunsoft 5B audio

Disch's Notes

Why was all of this added here? The noise generator is possibly useful (though I will need to verify it), but everything else is entirely redundant, and with a lot of speculative/weasel wording for things are now properly understood. The frequency calculation is also incorrect, and so are some statements that presume it to be an AY and not a YM. - Rainwarrior (talk) 01:00, 6 May 2013 (MDT)

I've removed all of the redundant or incorrect information, and moved the remaining new information into the article. - Rainwarrior (talk) 01:10, 6 May 2013 (MDT)

I moved it so that there was only one page we had to remove wrong information from. —Lidnariq (talk) 12:46, 6 May 2013 (MDT)

LFSR noise

By the way, someone made a program that will calculate the taps of a LFSR, given a recording: http://listengine.tuxfamily.org/lists.tuxfamily.org/hatari-devel/2012/09/msg00003.html —Lidnariq (talk) 15:29, 7 May 2013 (MDT)

Hmm, that program doesn't look -quit- that simple. I'd first have to decode the recording to a binary stream, but it looks like it could do the work from there. Most of the emulations I've checked are using the 17/14 tap configuration mentioned in that thread. Thanks for the link, though, I'll try to make use of it when I get around to testing my 5B. - Rainwarrior (talk) 14:09, 8 May 2013 (MDT)

YMZ284 vs YM2149

The datasheet for the YMZ284 claims that the top four bits of the data written to register $F must be 0 or else ... something. It'd be idly interesting find out what that something is, and if the 5B does that same something. —Lidnariq (talk) 16:54, 14 November 2014 (MST)

Is the "or else" a consequence that involves the I/O port? If so, how would you verify it with the 5B? If there's a test you'd like me to run on the 5B let me know, but I have no idea what I'd be looking for with this suggestion. - Rainwarrior (talk) 17:33, 17 November 2014 (MST)