Aside from that fatal flaw in one variant, as clones go their performance is respectable:. Some clone cards might support 16 MiB out of the box? You must provide the correct magic numbers. I’d be way more elegant to remove the noise at the source bus, PSU, etc. In practice, the default and correct answers for these are nearly always , , 5, 1, and 5, respectively.

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The bass and treble controls even work.

The default sound font that the drivers CD installs is a 3. There’s nothing special about them. The GUS Classic does that by default.

ISA go Bragh™

The sound effects test in setup works fine, as does every other application. DOS setup for this card is infamous if not epic and deserves its own page.

Maybe it’s a feature to avoid the old “stupid user set the volume to zero” problem. Exiting and restarting it with no command-line switches seems to purge the problem, but it recurs. I did a bit of online search and found out, that these models aren’t bad at all. This is what made me buy that as-is als100 lot from EBay. The audlo gets you the ROM sound font, which is hardly stellar as sound fonts go.


Vintage ISA Audio Sound Card Avance Logic Als h Taiwan Tested | eBay

Having chosen the former, Mpxplay —sct detects only SBP. The defaults that I got had the volume set to zero, bass and treble set to weird.

The UltraSound base port is selected by jumpers, and there is a jumper to disable the game port. Last one from the as-is lot! It is relatively nice, providing menu-driven configuration of resources, a mixer, and a sound test.

Maybe a hardware failure. So unless you know how to fix that let me know! Especially the OpAMP had caps installed which were off by factor Some sound cards can use the same IRQ for native mode as for Sound Blaster emulation without a conflict.

Vintage ISA Audio Sound Card Avance Logic Als100 6905501 637h Taiwan Tested

Plus, it is fun to thinker with old hardware and fixing them! ESS quit supporting their legacy products some time between and For some it’s fast, for some it’s slow.

MegaMID works to play. I don’t know if this is the correct name. Sound cards that use two DMAs for full-duplex operation recording and playing at the same time will usually fall back to half-duplex mode if the two DMAs are set to the same value. Possible kernel regression here. All PCM input had to be resampled to the one frequency that the las100 supported. An MPU can work in polling mode if no interrupt is allocated for it. Is it present on this genuine Aztech model, photo courtesy by Amoretro?


If it’s V, V or V, then you do.


UIDE still causes problems even though this was tested on an Intel chipset. Don’t bother—the music is just as messed up with or without an IRQ. REM This is necessary. ZIP package don’t work any better than the later versions did. The problem was corrected in kernel version 3. You need the program sbiload, which is included in als sound.