Miro Computer Products AG

miro Computer Products AG was a German manufacturer of PC multimedia equipment. Their product line included sound cards, TV and radio adaptors as well as some graphics cards.

The company was acquired by Pinnacle Systems in 1997.

 

miroSOUND PCM 1 Pro

Introduced: 1994
FM synthesizer: Yamaha YMF278B-F (OPL4).
Audio codec: Crystal CS4231-KL.
Chipset: OPTi 82C929A (MAD16 Pro).
DAC: Yamaha YAC516-E.
IDE, Sony, Panasonic and Mitsumi CD-ROM headers.

The Yamaha YRW801 chip in the bottom left is a 2MB ROM which holds approximately 330 samples, mostly 22.05-kHz 12-bit samples with some drums at 44.1 kHz. It is compatible with the General MIDI standard (128 melody sounds, 47 percussion sounds).

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miroSOUND FM 10

Introduced: 1995
Chipset: OPTi 82C929A (MAD16 Pro).

Compatibility: AdLib, Sound Blaster, Sound Blaster Pro II, Microsoft Windows Sound System, Roland MPU-401 (Windows).

IDE, Sony, Panasonic and Mitsumi CD-ROM headers.

Windows 95/98Windows NT 4.0User Manual (German)

miroSOUND PCM 10

Introduced: 1995
FM synthesizer: Yamaha YMF278B-F (OPL4).
Chipset: OPTi 82C929A (MAD16 Pro).

Built-in wavetable synthesizer based on Yamaha OPL4 chip and 2MB ROM sample set.
Roland MPU-401 UART compatible (Windows only). IDE, Sony, Panasonic and Mitsumi CD-ROM headers.

The Yamaha YRW801 chip in the bottom left is a 2MB ROM which holds approximately 330 samples, mostly 22.05-kHz 12-bit samples with some drums at 44.1 kHz. It is compatible with the General MIDI standard (128 melody sounds, 47 percussion sounds).

Windows 95/98Windows NT 4.0User Manual

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miroSOUND PCM 12

Introduced: 1995
Chipset: OPTi 82C924. Earlier revisions had a 82C929A (MAD16 Pro).
Audio codec: Analog Devices AD1848 (Earlier revisions had a Crystal CS4231A).
Compatibility: AdLib, Sound Blaster, Sound Blaster Pro II, Microsoft Windows Sound System 2.0, Roland MPU-401 (Windows and DOS).
1995 version is non-PnP. A later PnP version was released in 1996.
FCC ID: LAHSPCM12-ISA-1

Built-in wavetable synthesizer based on Yamaha OPL4 chip and 2MB ROM sound set.
Wavetable daughterboard connector connects to the MPU-401 UART port on the OPTi chip.
Revision E of this card also gets an IDE connector for CD-ROM drives. Older revisions got 3 older CD-ROM connectors for Mitsumi, Panasonic and Sony.
Initialisation and mixer settings must be made by running SNDINDOS.EXE.

The Yamaha YRW801 chip in the bottom left is a 2MB ROM which holds approximately 330 samples, mostly 22.05-kHz 12-bit samples with some drums at 44.1 kHz. It is compatible with the General MIDI standard (128 melody sounds, 47 percussion sounds).

Windows 95/98Windows NT 4.0User Manual

MiroSOUND PCM 20

Introduced: 1996
Chipset: OPTi 82C924.

PnP.
Compatibility: AdLib, Sound Blaster, Sound Blaster Pro II, Microsoft Windows Sound System, Roland MPU-401 (Windows and DOS).

Built-in wavetable synthesizer based on Yamaha OPL4 chip and 2MB ROM sound set.
Similar to PCM 12, but includes a built-in radio tuner.

The OPTi chipset manages direct MIDI playback over the MPU-401 interface. Yamaha’s own SW20-PC provided a software driver for DOS enabling MPU-401 playback.

Windows 95/98Windows NT 4.0User Manual