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  • Greetings and welcome to an LGR thing! And this thing right here is the OPL2LPT

  • I bought one of these recently because it does something i have always

  • dreamed about. And yes I do dream of these things, and that is: it provides a

  • proper sound card that is not only using the parallel port, but is Adlib

  • compatible at an affordable price. Especially compared to a full-sized

  • original Adlib card. But yeah this really takes it a step beyond by going with the

  • parallel port. Augh, what I would have done for one of these back in the day. On a retro

  • MS-DOS machine with only a PC speaker having Adlib support is a notable

  • upgrade. But yeah the OPL2LPT is built and sold by Serdashop in Belgium, the

  • same folks responsible for the excellent DreamBlaster daughter boards and the

  • CVX4 Covox Speech Thing clone, among other things. And it is currently available for

  • 30 euros for a kit you assemble yourself or 50 euros for an assembled and tested

  • unit, for a limited time. I bought the preassembled one because I'm lazy and I

  • wanted a plug-and-play solution much like the Covox Speech Thing.

  • In fact you might be thinking that the OPL2LPT is similar to the Covox and the

  • Disney Sound Source which I have covered here in the past. And that's true, but

  • instead of only working with software that specifically supports it, this

  • provides the much more common Adlib compatible standard used in thousands of

  • DOS games. And this is not just emulating it or imitating it in any way. This is the

  • legit way of doing it. It features an original Yamaha YM3812 OPL2 sound chip,

  • ahh! The same as the Adlib and the original Sound Blasters back in the day

  • and this is quite important to me considering I'm personally quite picky

  • about how I like my FM synths to sound. And while I would have preferred the later

  • OPL3 I'm happy with the 2 in this case. And there's a chance of an updated

  • version with an OPL3 in the future. As for the rest of the board you get the

  • expected male parallel port connector as well as a mini USB cable spot for power

  • and a 3.5 millimeter audio jack for sound output. And there's a

  • little volume knob on the end just like you'd get on an original Adlib card

  • from 1987. There's also a tiny reset button nestled

  • in there in case things go weird, as well as a jumper that can be shorted to

  • increase the bass output on the OPL2. Setting it up is straightforward as you

  • might expect: you just plug it in to a free 25-pin parallel port, plug in the

  • audio cable to your speakers or whatever, then power it via USB... which is one of

  • the more irksome pieces of the device. The PCs that I want to use this on do not

  • have a free USB port, so I had to plug mine into an adapter and into the wall.

  • And apparently you can also use a USB to PS/2 adapter and plug it into the PS/2 port

  • but that again doesn't work if you have that port filled up. Still even with the

  • extra cables dangling all over the place this is absolutely ideal for say, laptops

  • that lack a built-in sound chip of any kind. Or even those of us who want a

  • proper OPL2 chip on a desktop with something inferior installed already, or

  • you just have limited slots and you don't want to fill it up with something

  • else. I just have a bunch of tiny desktops and laptops and stuff that this

  • is ideal for, it's great. Now seeing that this isn't exactly working in the same

  • way as an original Adlib would, I mean, that didn't require any drivers or

  • really set up of any kind... This does need a little bit more to get

  • it going with your games. One program provided to do this is called ADLIPT

  • a TSR that lets your computer know there's an Adlib device present on the

  • printer port, just like there's an Adlib installed. But this runs into problems

  • with protected mode games and it also requires a 386 CPU or better, so running

  • it on an IBM PC, XT, or AT is pretty much out of the question.

  • And even running on a 100MHz 486 DX4 here I ran into some audio slowdown

  • and gameplay stuttering, so it's not ideal

  • So, short of running it on a much faster machine, in that case you'd want to use

  • ADPATCH which patches games directly to specifically look for the OPL2LPT

  • and also runs smoother while supporting sub-386 CPUs. The downside is that it

  • only supports a handful of games right now, and sadly this means that games like

  • Duke Nukem 3D don't yet work with the OPL2LPT at all. But for the games that

  • do work with it, dude, this thing does its job wonderfully. Despite the

  • slowdowns here and there on certain hardware, the OPL2 sound is dead-on as

  • it should be, and the fact that it's working over freakin' parallel just

  • amuses me endlessly. So with all that being said here is the reward, the payoff.

  • Enjoy some lovely Adlib sound samples!

  • *lovely Adlib music and sounds play*

  • Yeah that's pretty much it for what I want to show of the OPL2LPT

  • I hope that gives you a good idea of what it can and cannot do. Such as with

  • Doom there you might have noticed that the sound effects were not playing.

  • That's because Doom uses digital PCM sound effects and the Adlib does not

  • generate those, it's only an FM synth. Now some games will modulate this and play

  • PCM through Adlib but most often that is not the case. So unless the game does

  • Adlib sound you are pretty much just gonna get music through this. And that's

  • just normal for an OPL2 Adlib compatible. Again the real downsides here

  • are if you're running it on a slower system then the games are probably gonna

  • slow down here and there and have some stuttering issues. But even on a faster

  • system with a Pentium or Pentium II or beyond, there's still plenty of times

  • especially with games after 1992 or 93 or so, where it just will not work. A lot

  • of my favorites don't give sound at all. Games like Duke Nukem 3D, SimCity 2000,

  • even games like Wacky Wheels it just doesn't see that there's an FM synth

  • there whatsoever. But really if the alternative is having no FM synth at all

  • on the particular computer that I might want to use this on, then well here you

  • go! For those ideal situations this is pretty ideal! And support for other games

  • will pretty much only improve over time as the TSR improves and ADPATCH gets

  • more support. And that is awesome.

  • The OPL2LPT gets the LGR seal of approval!

  • EDIT: Um. There was supposed to be an outro here, but instead it's just quiet music.

  • Whoops.

  • Thanks for watching!

Greetings and welcome to an LGR thing! And this thing right here is the OPL2LPT

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LGR - AdLib Sound Over Parallel!OPL2LPT (LGR - AdLib Sound Over Parallel! The OPL2LPT)

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    林宜悉 發佈於 2021 年 01 月 14 日
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