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Implementación del SID

Publicado: 05 Dic 2018, 14:11
por jotego
Tengo entendido que la implementación del SID de este core es muy fidedigna. ¿Cómo se compara con la de otros cores disponibles de C64? ¿Qué la hace tan especial? Y destinado a SamQuest, ¿podrías liberar el código del SID para poder usarlo en más plataformas como MiST o MiSTer?

Re: Implementación del SID

Publicado: 10 Dic 2018, 09:39
por niallquinn
Personally, I don't think it's that great. In core 7b 6581 samples are so quiet you can't hear them, which leads me to believe, the core is based on an 8580, which it does very well.

So basically, if you like any games with Rob Hubbards sample music driver, ie Arcade Classics, Skate or Die, BMX Kids, you're going to be disappointed.

Or if you like the 8580 in general, and aren't bothered about samples that were created for the 6581, you'll be fine.

Re: Implementación del SID

Publicado: 11 Dic 2018, 18:35
por PiyoTaro
niallquinn escribió:Personally, I don't think it's that great. In core 7b 6581 samples are so quiet you can't hear them, which leads me to believe, the core is based on an 8580, which it does very well.

So basically, if you like any games with Rob Hubbards sample music driver, ie Arcade Classics, Skate or Die, BMX Kids, you're going to be disappointed.

Or if you like the 8580 in general, and aren't bothered about samples that were created for the 6581, you'll be fine.


In Wikipedia in English, it was an example that the difference between "6581" and "8580", "Fourth channel" exists. (When accessing the volume register, offset voltage is generated, so it can be like a PCM sound.)
https://en.wikipedia.org/wiki/MOS_Technology_6582#Technical_details

Theme song of "Skate or Die!" :ordenata:
https://www.youtube.com/watch?v=XetgpWY7WOg
Is the sound of electric guitar sound synthesized by SID?
I think that the PCM sound outputted from the "fourth channel" is such as "guitar sounds that come out in the front" sound quality and keyboard sounds with a lot of channels.

Re: Implementación del SID

Publicado: 11 Dic 2018, 19:48
por niallquinn
PiyoTaro escribió:
niallquinn escribió:Personally, I don't think it's that great. In core 7b 6581 samples are so quiet you can't hear them, which leads me to believe, the core is based on an 8580, which it does very well.

So basically, if you like any games with Rob Hubbards sample music driver, ie Arcade Classics, Skate or Die, BMX Kids, you're going to be disappointed.

Or if you like the 8580 in general, and aren't bothered about samples that were created for the 6581, you'll be fine.


In Wikipedia in English, it was an example that the difference between "6581" and "8580", "Fourth channel" exists. (When accessing the volume register, offset voltage is generated, so it can be like a PCM sound.)
https://en.wikipedia.org/wiki/MOS_Technology_6582#Technical_details

Theme song of "Skate or Die!" :ordenata:
https://www.youtube.com/watch?v=XetgpWY7WOg
Is the sound of electric guitar sound synthesized by SID?
I think that the PCM sound outputted from the "fourth channel" is such as "guitar sounds that come out in the front" sound quality and keyboard sounds with a lot of channels.


I know, shame it doesn't work correctly.