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GTIA soundcard


xxl

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zx user:

http://8bitcollective.com/music/MISTER+BEE...y+is+jumping+2/

 

atari user:

http://atari.pl/mb_cbij2.mp3 - 8 channels beep music. i have atari player for ZX-7 music composer.

 

Don't take it personal, but why must A8 music always sound like the high speaker is only working? The Speccy tune sound much more balanced while the A8 tune seem to play only high sounds. When people hear music played by the generators, it is a clear thing, because the type of generating the sounds will always result in louder sounds when they got played frequently faster.

But when digitizing this problem does not happen. Theoretically they must sound louder in the deep range...

 

So what's the cause that the A8 sounds cut from all deep sounds ? The used waveforms?

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atari have no bassss, but my equalizer has

 

 

Atari has no basses but C64 has.... No point of argue...

 

1. You see what the GTIA Player is producing

2nd Picture is from the Speccy

 

The only question is: If the speccy is working with 1 bit. Why comes that the wave sweep in soft ditigal waves and the waves "ride" on a low wave?

 

The GTIA Player clearly produces, what the software is offering ....

 

The 3rd Picture "Pokeygen" shows Hardsynth methode with 4x VBI speed.

post-2756-1233125914_thumb.png

post-2756-1233125924_thumb.png

post-2756-1233125947_thumb.png

Edited by emkay
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IMHO, this is due to the electrical characteristics of the GTIA bit. It's got a non-linear response, or maybe the better way to put it is a far different and less linear response than the Speccy has.

 

When you do these things with an R/C network in play, the value of C has a lot to do with how these response curves play out. Wonder if the same waves occur on an older machine with the actual speaker hardware?

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if you check output from zx spectrum emulator then you must know - emulators do not emulate beep sound properly, if you check mp3 from mister beep then also - mister beep has 'prepare' mp3 :-)

 

! but ! truth is that zx spectrum has deeper sound - its not software but hardware.

 

---

if you want i send to mister beep raw wave and he prepare mp3 from atari version :-)

Edited by xxl
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> Now - someone has totally malfunctioned ears (rather not me) and still produce so-called music.

 

ok. maybe me :-) i wish i could write that kind of music but i can't.

sorry but men who produce that so called music are (in random order):

- Tim Follin

- Jason C. Brooke

- Benn Daglish

- Martin Galway

- Fred Gray

- Mister Beep

- Richard Joseph (rip)

- David Whittaker

- Jonathan Dunn

- Steve Turner

and many many more :)

 

i'am only rewrite play routines from zx spectrum (ULA) to GTIA

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> Now - someone has totally malfunctioned ears (rather not me) and still produce so-called music.

 

ok. maybe me :-) i wish i could write that kind of music but i can't.

sorry but men who produce that so called music are (in random order):

- Tim Follin

- Jason C. Brooke

- Benn Daglish

- Martin Galway

- Fred Gray

- Mister Beep

- Richard Joseph (rip)

- David Whittaker

- Jonathan Dunn

- Steve Turner

and many many more :)

 

i'am only rewrite play routines from zx spectrum (ULA) to GTIA

 

 

I guess the weird comment was addressed toward me ;)

And I wonder if the "TomSW" is a 2nd account of André, because he writes odditively pointless comments... Just for amusing himself.

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