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#1 2006-07-05 01:21:29

importeur1
Guest

MIDI interface?

It might be a bit off topic, but I always wondered why MIDI interfaces
are built for the cartridge port and not the USER-port.
Why's that, FirestARTer?
Will yours be a USER-port model?

I've got two MIDI interfaces (a Steinberg and a Sequential Circuits),
but both use the same slot as the Prophet64. What a shame...


Cheers,
AxiMaxi

__________________________________________________________
originally posted by

Bastiaan

 

#2 2006-07-05 01:22:29

importeur1
Guest

Re: MIDI interface?

Afaik the FirestARTer MIDI interface will be a USER-port model. As
mentioned before, it's an add-on for Prophet64 and absolutely
different from "traditional" MIDI interfaces.

As far as I know all the MIDI stuff will be processed inside the
interface, which is kind of "translating" all the signals into what
the Prophet64 software is listening to the USER-port.

Running an Expansion-port MIDI interface would demand a lot of CPU
power (for all MIDI stuff has to be done by the C64 CPU). Every C64-
MIDI soft I know is lacking realtime control while MIDI is running -
Think of TRIAD's "Midislave" - It's not due to the ptogrammer's
skills but the limit of anxcient hardware architectures. Complex
sequencing sw (e.g: Clab's "Supertrack") has no SID-audio for the
same reason...

So if there's any "shame on" it's Jack Tramiel - or 1982 wink


__________________________________________________________
originally posted by

ron schneider

 

#3 2006-07-05 01:23:22

importeur1
Guest

Re: MIDI interface?

ron schneider wrote:

(...) FirestARTer MIDI interface will be a USER-port model. (...)
add-on for Prophet64 (...) different from "traditional" MIDI
interfaces.

(...) all the MIDI stuff will be [translated] into what
the Prophet64 software is listening to the USER-port.

Ah, yeah... could have thought of that myself :-/
Then again... wouldn't it be just a S24-64II + MIDI/Sync24 convertor
you could as well make by adding a Doepfer MSY2 (or the like) in your
setup?

[MIDI means CPU monstrosities]

ron schneider wrote:

So if there's any "shame on" it's Jack Tramiel - or 1982 wink

Hehehe... :-)

Cheers,
AxiMaxi


__________________________________________________________
originally posted by

Bastiaan

 

#4 2006-07-05 01:23:55

importeur1
Guest

Re: MIDI interface?

Exactly, the only thing you got to do is an adapter to the userport.
Prophet64 is not compatible to all old midi-interfaces around and also
not compatible to any keyboard which can be connected to the joystick port.

As most people might know, i developed a midi-sync device for the old
Prophet64 versions. It is 100% compatible to the new versions.

firestARTer :-)

__________________________________________________________
originally posted by

firestARTer

 

#5 2006-07-05 01:24:46

importeur1
Guest

Re: MIDI interface?

firestARTer wrote:

Prophet64 is not compatible to all old midi-interfaces around and
also not compatible to any keyboard which can be connected to the
joystick port.

I wasn't implying that, I was merely suggesting that it would be nice
if it was and that it might be a feature that could be added in a
future version :-)

However, although I am a big fan of the C64, it wasn't untill a
couple of months ago that I first heard of the keyboard... so I guess
only very few people have it. Not worth the development time...

And I'm already on the watch for a MIDI/Sync convertor :-P

Cheers,
AxiMaxi


P.S. Anybody here using anything else with his/her C64 beside the Prophet64?


__________________________________________________________
originally posted by

Bastiaan

 

#6 2006-08-17 05:45:07

jb89
Guest

Re: MIDI interface?

importeur1 wrote:

P.S. Anybody here using anything else with his/her C64 beside the Prophet64?


__________________________________________________________
originally posted by

Bastiaan

TRIAD MIDI slave over here.

firestARTers' MIDI interface + P64 = dream come true.



wink

 

#7 2006-08-17 11:25:57

ted209
GI-Joe
Registered: 2006-07-09
Posts: 18

Re: MIDI interface?

importeur1 wrote:

P.S. Anybody here using anything else with his/her C64 beside the Prophet64?

I've used M64 a few times - seems pretty powerful, but needs a little programming knowledge to get the best out of it. It allows you to play the SID realtime with a MIDI keyboard.
http://gallium.prg.dtu.dk/anyware/

Ed

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#8 2006-08-17 11:30:03

KONEY
PROPHET64 GURU
From: VENICE - ITALY
Registered: 2006-07-08
Posts: 1062
Website

Re: MIDI interface?

yikes

Let's look at a simple ASL program example:

;
;Name: Dummy
;
;Author: Jonas Hulten
;
;Modulations:
; pitch wheel: pitch
;

    const BENDERVALUE=2

globalInit:
    set SIDGvolume         ;full volume
    end

globalAlways:
    end

localInit:
    movei $4000, SIDattack
    movei $8000, SIDdecay
    movei $D000, SIDsustain
    movei $9000, SIDrelease

    set SIDsaw
    end

localKeyDown:
    move MIDfreq,SIDfreq   ;play correct frequency
    set SIDgate            ;start attack
    end

localKeyUp:
    clr SIDgate            ;start release
    end

    local pitch

localAlways:
    ;pitchbend
    glob2reg MIDGpitch, pitch
    pitchbendi BENDERVALUE, pitch
    move MIDfreq, SIDfreq
    end

Last edited by KONEY (2006-08-17 11:31:45)

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#9 2006-08-17 21:17:22

Slorrin
PROPHET64 GURU
Registered: 2006-07-09
Posts: 871

Re: MIDI interface?

is that a real program?

i wish i knew how to program...

M64 is good, if you have an old c64 midi interface, that goes in the cartridge slot.

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#10 2006-08-17 21:28:14

KONEY
PROPHET64 GURU
From: VENICE - ITALY
Registered: 2006-07-08
Posts: 1062
Website

Re: MIDI interface?

Yes, I got it from the M64 docs.

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#11 2006-08-17 22:26:32

AxiMaxi
PROPHET64 GURU
From: The Netherlands
Registered: 2006-07-09
Posts: 548
Website

Re: MIDI interface?

Slorrin wrote:

M64 is good, if you have an old c64 midi interface, that goes in the cartridge slot.

Which one?
I have one made by Steinberg, called Card 24 (if I remember correctly).


If everything is under control, you're not going fast enough.

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#12 2009-06-04 00:55:26

luke-beataddicts
The Last Ninja
From: West London
Registered: 2009-04-12
Posts: 258
Website

Re: MIDI interface?

axi maxi i'm interested in steinberg stuff for c64, also in Sequential Circuits software and carts to control Sequential Circuits Max and other synths.

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