Grave Ultrasound

table of contents

history

grave Ultrasound or GUS is a sound map for IBM - the compatible PC. Them were into the 1990ern in the demo scene quite spread, there them other, similarly expensive sound maps of this time in the clay/tone quality were superior. It was capable to play on several channels Samples at the same time without having to stress of mixing the CCU of the computer. Thereby complex music pieces and sound effects became possible, when minimum demand the computer. Their MIDI is worth mentioning - playing quality, since she could store instrument Patches in the own RAM and 32 clay/tone channels had. The products of the Marktführeres at that time Creative lab (sound Blaster - series) did not offer long time such possibility.

technical

the sound map possessed its own RAM memory, its own mix chip and at the ISA card location was attached. The internal sound mixer relieved the CCU and made a high sound quality possible on 80486er processors. In addition one knew different effects over special programs in real time, how Delay, Flange or Reverb to accomplish, without which the processor of the PC must particularly have much achievement.

compatibility

as the largest Handicap of the Ultrasound series applied their play compatibility lacking. The expenditure for clay/tone at that time by the majority of the computer games running under MS-DOS was appropriate to sound maps usually only for sound Blaster -. With the sound blowing he emulation driver offered by grave (SBOS, MegaEm) it succeeded with some plays to spend also on Ultrasound maps of sound effects and music. Smoothly harmony ores co-operation however often only with plays, which offered direct GUS support. These were thinly sown long time. The sound map could be inserted also under OS/2 of IBM. The compatibility with the newer Windows - versions was however finally the principal reason, why the map was displaced gradually by Creative. There were driver for these operating systems however these was very difficult to configure and over the beta - stage never out-came.

Not only in the demo scene was the map much likes. By the high clay/tone quality, compared to which the map became generally accepted small price fast with musicians, who worked in particular with programs such as nearly tracker , X-tracker and impulse tracker.

Grave left finally the sound map business, and Creative lab kept the rule over the sound map market within the lower and middle price range.

model rows

the GUS appeared in different versions. There was the grave Ultrasound standard (with 512 KB memory), the grave Ultrasound max (with 1024 KB own memory). The grave Ultrasound PnP appeared later in co-operation with the processor manufacturer AMD. The basis for the GUS Pnp represented the Interwave chip. One could rig this map with 72 SIMM RAM on maximally 16 MT own memory.


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