Roland LAPC

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Roland LAPC-I

The LAPC , short for "LA Soundcard for PCs", is an early soundcard from the Roland company . It appeared as LAPC-I for IBM PC-compatible computers and as LAPC-N for the NEC PC-98 . In 1989, when it was published, it was in the upper class in terms of performance and price.

The LAPC combined in a single plug-in card, the Roland MT-32 -compatible MIDI - synthesizer module Roland CM-32L with a MPU-401 interface. The sound is generated by means of linear arithmetic synthesis (LA), a form of sample- based synthesis supplemented with subtractive synthesis . As with other Roland plug-in cards with an MPU-401 interface, a breakout box (MCB-1) is required to connect external MIDI devices . The sound is output either via cinch sockets or a jack socket .

The LAPC-I model corresponds to an XT bus plug-in card (8 bit) in full length. It was sold in Germany from 1989 for approx. 1,000 DM (according to today's purchasing power approx. 880 euros). The card is often incorrectly referred to as LAPC-1; in fact, the last character is not a one, but an "I" for "IBM".

The LAPC-N model appeared in Japan for the NEC PC-98 computer (“N” for “NEC”) that was widespread there . The PC-98 uses the so-called C-Bus as a bus system .

Compared to more modern sound cards, the LAPC is capable of generating sounds independently, but not playing back wave files .

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