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Author Topic: LAPC-I: wrong sounds & hanging notes  (Read 2308 times)
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john pussner
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« on: October 04, 2006, 04:04:52 PM »

Hi there!
Hopefully someone can help me:
Some time ago I bought a LAPC-I on ebay.
Now I tried to see if it all works well - but it doesn't!

My system is a old 486DX2-66 with MS-DOS 6.22 and a VesaLocalBus-Motherboard.
For wave sound and connection of a cd-rom there is a Soundblaster
AWE 32 installed.

Everything works fine, the LAPC-I is recognized by Windows 3.1
and all the games.
But the sound that comes out this card is terrible!
Sounds are wrong and those wrong sounds hang quite often.

I tried some things with tools I found on this great website:
I did a reset to mt-32 mode, loaded a empty bank- nothing helped.
I also loaded the larry5-sysex-file to the card - but larry5 sounded
as terrible as before!
It's also strange that it sounds every time another way. Its never
the same terrible sound, always changing.

Is the card out of order? Is there any way to hear the real sounds??

Please help me!

Thanks
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Great Hierophant
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« Reply #1 on: October 04, 2006, 05:49:04 PM »

Some things:

The LAPC-I works best at I/O 330, IRQ2.  make sure no other card, like the AWE32 or a video card, is using those resources.

The LAPC-I will not accept sysex data without being programmed to do so.  Windows does not do this, it is up to the application to do so.  Please see the following page for the answer:

http://queststudios.com/forum/viewtopic.php?t=2001

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NewRisingSUn
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« Reply #2 on: October 04, 2006, 05:53:11 PM »

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The LAPC-I will not accept sysex data without being programmed to do so.
That doesn't apply here. It only applies to data that enters the card via the MIDI IN jack from outside the computer, like in your particular case. Sysex data from "inside the computer" are of course sent to the internal sound source.
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Alistair
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« Reply #3 on: October 07, 2006, 02:10:33 AM »

Maybe your sound is going to the AWE32 and not the LAPC-1? Someone tell this guy how to change your active MIDI device, because I don't know how in DOS, only Windows.

- Alistair
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john pussner
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« Reply #4 on: October 07, 2006, 06:59:51 AM »

Hi!
The card is at 330 and irq 2/9.
It's also not connected in any way to the awe32 (which
works fine),and has its own way to an amplifier.
The music after the intro of larry6 sounds quite right,
but in all other games it sounds bad.

Hans
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Alistair
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« Reply #5 on: October 07, 2006, 09:16:10 AM »

I was saying, maybe your sound is routed to the AWE32 and not the LAPC-I. But if you're saying LSL6 sounds OK, then maybe it's SysEx.

In which case, I have no idea.

- Alistair
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NewRisingSUn
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« Reply #6 on: October 07, 2006, 11:44:09 AM »

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The card is at 330 and irq 2/9.
It's also not connected in any way to the awe32 (which
works fine),and has its own way to an amplifier.
Yes, but the AWE32 also has an MPU-401 interface, which defaults to 330. Try changing that to something else.
« Last Edit: October 07, 2006, 11:57:38 AM by NewRisingSUn » Logged
john pussner
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« Reply #7 on: October 07, 2006, 09:08:41 PM »

Thanks for your comments!

I set the awe32 midi port to 300 from the very first!
The installation program gave me no reply that there are any problems with it.
The SET BLASTER variable in autoexec.bat has the right value (P300)!
Apart from that I haven't seen any jumpers for this at the awe32
(don't have a manual).

Is there a (DOS)program to control the midi-port settings?

Quote
The LAPC-I will not accept sysex data without being programmed to do so.
Sorry Hierophant, but your link does not work, maybe it will work again later.
What does "programmed to do so" mean? I thought every game sends automatically its
sysex-data to the lapc and thats enough? So i know it from my mt-32 (in a 386).

Anyway: I'll try to see if the the lapc works better when i take the awe out of the computer
(but then i'll have no more cd-rom-drive!!)

Thank you all
when someone has a clue - tell me!!

Hans
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Great Hierophant
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« Reply #8 on: October 08, 2006, 12:25:12 AM »

Quote
Quote
The LAPC-I will not accept sysex data without being programmed to do so.
Sorry Hierophant, but your link does not work, maybe it will work again later.
What does "programmed to do so" mean? I thought every game sends automatically its
sysex-data to the lapc and thats enough? So i know it from my mt-32 (in a 386).

Anyway: I'll try to see if the the lapc works better when i take the awe out of the computer
(but then i'll have no more cd-rom-drive!!)

Thank you all
when someone has a clue - tell me!!

Hans

Please disregard what that comment. 
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