Differences in PSG's | MSX Resource Center (Página 1/3)

Enlighted (4348)

23-10-2004, 09:50

The Philips NMS 8250, 8255 and 8280 have a sound distortion due to a design bug. There are two resistors on the a/v board which are meant to be in fact electrolytic condesors. You can find info on how to fix this on Hans Otten's pages in the Do-It-Yourself section iirc.

Por Samor

Prophet (2148)

23-10-2004, 10:28

In this case I'm not talking about the balance-problem with the fmpac (seems already fixed in this model, 'cause nothing 'strange' happens when I use one) or the balance problem with the SCC, but about the sound of the psg itself. You could say it sounds like the volume is just a little too loud, but naturally changing the volume of the stereo doesn't change this.
I could record it if that makes it more clear.

Por Repair-Bas

Paragon (1155)

23-10-2004, 10:53

Try to turn around C119 on the motherboard

Por MäSäXi

Paragon (1884)

23-10-2004, 12:56

I have been wondering differencies with PSGs for years now, like many others too... and as humans who have used different msxs a lot, knows there are differencies in PSG in different manufacturer´s msxs and even SAME models can have different sound.

So, how we can say what is THE REAL SOUND OF PSG if every MSX has it´s own sound? (which can be heard) And propably EVERY MSX really has their own PSG sound which differs from others, we just can´t hear it..

Maybe we just should enjoy that difference! Differencies makes world more lovable place to live!

Por Sonic_aka_T

Enlighted (4130)

23-10-2004, 15:04

Maybe we just should enjoy that difference! Differencies makes world more lovable place to live! Differences also make people blow themselves up on a crowded bus...

Por dhau

Paragon (1570)

23-10-2004, 16:19

YM and AY chips are slightly different. Mr. Bulba is the matter expert, but in short, it's something like this: AY uses 4-bits for timing and YM - 5-bits. Which makes resolution of YM slightly higher, and as result, it sounds a bit more metallic. Think transistor vs tube power amps. First are more precise, seond are more "natural".

Por flyguille

Prophet (3028)

23-10-2004, 16:39

I have been wondering differencies with PSGs for years now, like many others too... and as humans who have used different msxs a lot, knows there are differencies in PSG in different manufacturer´s msxs and even SAME models can have different sound.

So, how we can say what is THE REAL SOUND OF PSG if every MSX has it´s own sound? (which can be heard) And propably EVERY MSX really has their own PSG sound which differs from others, we just can´t hear it..

Maybe we just should enjoy that difference! Differencies makes world more lovable place to live!

well, the real sound of MSX is the original MSX1 PSG AY 3 - 8910....
having his three output chanels mixed directly by a short , and then outputing it without any equalizing...

my Talent DPC200 (MSX1), has that... sounds great...

when i bought the msx2, the sound output of the s1985 engine sucks!!!! is a lot different....not only in equalizing, if not have little differences in enveloping timing, i guest.

Por flyguille

Prophet (3028)

23-10-2004, 16:41

YM and AY chips are slightly different. Mr. Bulba is the matter expert, but in short, it's something like this: AY uses 4-bits for timing and YM - 5-bits. Which makes resolution of YM slightly higher, and as result, it sounds a bit more metallic. Think transistor vs tube power amps. First are more precise, seond are more "natural".

4 bits?? 5 bits?? where?

Por anonymous

incognito ergo sum (116)

23-10-2004, 19:17

YM and AY chips are slightly different. Mr. Bulba is the matter expert, but in short, it's something like this: AY uses 4-bits for timing and YM - 5-bits. Which makes resolution of YM slightly higher, and as result, it sounds a bit more metallic.
It would be great to have his docs in english. Any chance for that?

Por [D-Tail]

Ascended (8259)

23-10-2004, 19:20

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