Re: CVX-2 : covox adapter
Posted on 2017-11-29, 20:58
dreamblaster wrote: R2R ladder if you find suitable and affordable. We could make a solder kit. Would it be one of these? https://nl.mouser.com/ProductDetail/Bou ... X0%2fPY%3d
Re: CVX-2 : covox adapter
Posted on 2017-11-29, 11:51
Wow Scali, that's great to read, thanks ! I will post the link on my serdashop cvx page. You're welcome! Do you see anything that needs to be changed ? You mean to the CVX4? Well no, as a Covox clone, it is everything I hoped for, and more. I can only repeat some ideas I had earlier: 1) Having some …
Re: July 1994 BestBuy flyer on imgur...
Posted on 2017-11-29, 11:37
Oh man, times really have changed. That Acer with inflation calculated would have been 3.5K in today's currency. It was powerful enough to run Doom perfectly at least, and looks like an incredibly useful machine for its time. Yea, seems about right. I got my first 486 system at around 1994 as well. …
Re: Unlocking & downclocking a Pentium II?
Posted on 2017-11-29, 11:31
Doesn't the P2B have jumpers to change the FSB? At least that's what Google tells me. Of course that may depend on the revision... In that case you could change the FSB from 100MHz to 66MHz. Yea, it's still 'oldskool', my P2B-LS (basically the same board, but with the optional LAN and SCSI …
Re: OPL2LPT
Posted on 2017-11-29, 11:30
Generally, serial ports are not compatible with MIDI baud rate, so standard MIDI devices can't work even if physical signal is converted from RS232 voltage levels to MIDI current loop. However, some MIDI modules can be connected to RS232 serial ports with standard PC baud rates. But what if you …
Re: July 1994 BestBuy flyer on imgur...
Posted on 2017-11-28, 19:54
The ppro 150 was the new insane high end by then. The PPro is an interesting point in history. The name already implies that it is only for the server/workstation market. And indeed, it never reached the mainstream. Instead, after the Pentium Pro, Intel split up their range for the first time. …
Re: July 1994 BestBuy flyer on imgur...
Posted on 2017-11-28, 19:35
Of course they were expensive.. the dx4 100 was released in 1994 for $650 alone.. Pentium systems from gateway 2000 were $3000 for base models in late 1993, but they were on the shelves for consumers since 93 for 60 and 66. Well, my point is that people these days tend to google the launch date for …
Re: OPL2LPT
Posted on 2017-11-28, 19:16
There's slight distortion on the sound. I'm guessing that's normal for the adlib era? or do I have a crappy solder joint some place? An AdLib can distort a bit in some cases, but that is done 'deliberately' by the composer then. Normally AdLib music sounds very 'clean'. I suggest you compare it to …
Re: July 1994 BestBuy flyer on imgur...
Posted on 2017-11-28, 18:33
Clear proof that even 486es were still very expensive back in 1994. They didn't even list a Pentium, might not have sold those to consumers yet.
Re: CVX-2 : covox adapter
Posted on 2017-11-28, 16:12
And here is my blog on the Covox/CVX-4: https://scalibq.wordpress.com/2017/11/28/the-covox-years/
Re: CVX-2 : covox adapter
Posted on 2017-11-28, 15:06
Some things I may add in the near future: 1) Commandline switch to select LPT port 2) Commandline switch to select sample rate I have updated CvxPlay again, adding these features. It can be downloaded here: https://www.dropbox.com/s/d676aihs71fw2bk/cvxplay.zip?dl=0 Usage is simple: Usage: CvxPlay …
Re: Multiple Questions Regarding Music Playback from IDE Optical Drives
Posted on 2017-11-27, 00:19
the_ultra_code wrote: So then without "EDAP" enabled and no audio cables going from the optical drive to a soundcard, there would be no sound? Indeed.
Re: Multiple Questions Regarding Music Playback from IDE Optical Drives
Posted on 2017-11-27, 00:08
Okay, so if "Enable Digital Audio Playback" (I will now say "EDAP" for short :) ) is NOT enabled in the OS or if the OS does not support it, and NO audio cables whatsoever (either the 4-pin or 2-pin) are connected to the optical drive, and the only way to transfer Redbook audio is over IDE, would …
Re: Unlocking & downclocking a Pentium II?
Posted on 2017-11-26, 21:32
Perhaps only some are. I see the option in my Asus P2B bios but it disappears after the bios screen finishes loading, like it's realizing the CPU is locked so hides the option from UI Yea, according to Wikipedia, later models were multiplier-locked, and some even locked to 66 MHz bus: https://en. …
Re: Unlocking & downclocking a Pentium II?
Posted on 2017-11-26, 21:10
I don't think most Pentium II CPUs are locked in the first place. I have an Asus P2B-LS with a Pentium II 333 on there, and afaik I can just select any bus speed and multipliers that I want. I've had it running at 350 MHz without a problem at least (bus speed to 100 MHz instead of the 66 MHz at its …
Re: Multiple Questions Regarding Music Playback from IDE Optical Drives
Posted on 2017-11-26, 20:24
[*] Using Over-IDE Playback: Path: Optical Drive -> Optical Drive's DAC -> IDE Cable -> Motherboard -> Soundcard -> Audio Out [*] Using Over-IDE Playback (with "Enable Digital Audio Playback" Enabled in OS): Path: Optical Drive -> IDE Cable -> Motherboard (with CPU Acting as DAC) -> Soundcard -> …
Re: Looking for a list of dos games that require an intelligent mode MPU-401
Posted on 2017-11-26, 15:25
Intelligent MPU-401 does not make games sound better or worse, it allows games work with midi devices like the MT-32, otherwise they do not work with them at all. That is not quite correct. An original MPU-401 has its own CPU and simple MIDI sequencer functionality onboard. Intelligent mode allows …
Re: Motherboard for 486 DX4
Posted on 2017-11-24, 00:17
Unfortunately, the post screen, nor the bios is showing me the CPU Type or Speed On these older systems, there was no reliable way for the BIOS to determine the CPU (the Pentium was the first to introduce the CPUID instruction that can return a string describing the CPU brand and model). So the …
Re: OPL2LPT
Posted on 2017-11-24, 00:12
Yea, the XT and AT keyboard connectors also supply +5v on pin 5. So you may be able to grab the power from there as well on older systems, with a simple passthrough-adapter.
Re: Multiple Questions Regarding Music Playback from IDE Optical Drives
Posted on 2017-11-23, 21:49
It's funny. Every time I think I'm out of questions, more come to my mind, so I have yet another question (sorry). Here is my new question: Let's take a moment to think about how audio played from actual files stored on a CD/DVD works. If I'm correct, that non-Redbook audio-file "data" is sent over …
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