#CREATIVE LAB SOUND BLASTER RECON 3D PCIE DRIVER WINDOWS 7 PRO#
The Sound Blaster Pro was the first Creative sound card to have a built-in CD-ROM interface. The Sound Blaster Pro was fully backward compatible with the original Sound Blaster line, and by extension, the AdLib sound card. The Sound Blaster Pro used a pair of YM3812 chips to provide stereo music-synthesis (one for each channel). The Sound Blaster Pro supported faster digital input and output sampling rates (up to 22.05 kHz stereo or 44.1 kHz mono), added a 'mixer' to provide a crude master volume control (independent of the volume of sound sources feeding the mixer), and a crude high pass or low pass filter. Model CT1330, announced in May 1991, was the first significant redesign of the card's core features, and complied with the Microsoft MPC standard. The CT1320B variety of the Sound Blaster 1.0 typically has C/MS chips installed in sockets rather than soldered on the PCB, though units do exist with the C/MS chips soldered on.
The ADPCM decompression schemes supported were 2 to 1, 3 to 1 and 4 to 1. The sole DSP-like features of the circuit were ADPCM decompression and a primitive non-MPU-401 compatible MIDI interface. It could play back 8-bit monauralsampled sound at up to 23 kHzsampling frequency and record 8-bit at up to 12 kHz.
This actually stood for Digital Sound Processor, rather than the more common digital signal processor, and was really a simple micro-controller from the IntelMCS-51 family (supplied by Intel and Matra MHS, among others). Creative used the 'DSP' acronym to designate the digital audio part of the Sound Blaster.
It provided perfect compatibility with the market leader AdLib sound card, which had gained support in PC games in the preceding year. In addition to Game Blaster features, it had an 11-voice FM synthesizer using the Yamaha YM3812 chip, also known as OPL2. The Sound Blaster 1.0 (code named ' Killer Kard'), CT1320A, was released in 1989.
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