Windows Sound System

Front and back of an original Microsoft Windows Sound System sound card

Windows Sound System (WSS) is a sound card specification developed by Microsoft, released at the end of 1992 for Windows 3.1. It was sold as a bundle which included an ISA sound card, a microphone, a pair of headphones and a software package.[1]

WSS featured support for up to 16-bit, 48 kHz digital sampling,[1] beyond the capabilities of the popular Sound Blaster Pro, although it was less frequently supported than Sound Blaster and Gravis sound cards, as well as Roland sound cards, daughterboards, and sound modules.[2] In addition, the WSS featured RCA analog audio outputs, an uncommon feature among sound cards of this era; other connections were a microphone input, a stereo line input and a stereo headphone output.[1]

WSS was supported by most popular DOS sound libraries developed in the 1990s, such as the Miles Sound System and HMI Sound Operating System, as well as less popular ones such as Loudness Sound System, Digital Sound Interface Kit, Digital Sound & Music Interface and Junglevision Sound Drive.[2]

Much like with the Intel High Definition Audio standard of today, the actual hardware was also standardized as well. WSS was based on the Analog Devices AD1848 codec chip and had an on-board Yamaha YMF262-M (OPL3) FM synthesis sound chip for MIDI playback[1] (supporting up to 18 simultaneous MIDI voices).[3]

## Drivers

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WSS 1.0a drivers were released in February 1993. They introduced single-mode DMA, supported games in MS-DOS, Ad Lib and Sound Blaster emulation.[4]

WSS 2.0 drivers, released in October 1993, added support for OEM sound cards (Media Vision, Creative Labs, ESS Technology) and included an improved DOS driver (WSSXLAT.EXE) that provided Sound Blaster 16 compatibility for digital sampling.[4] However, they did not provide support for FM or "wavetable synthesis".

## References

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1. ^ a b c d Brown, Bruce (1992-11-24). "Microsoft Sound System Gives Windows a Voice". PC Magazine: 36–38 - via Google Books.
2. ^ a b "Microsoft Windows Sound System standard support in DOS games". www.vogons.org. 2014-05-29. Retrieved 2019-12-05.
3. ^ Strehlo, Kevin; Lyons, Patrick (1992-09-21). "Microsoft's Audio Bundle Blasts the Competition". InfoWorld: 137 - via Google Books.
4. ^ a b "Comparing Features of Windows Sound System 1.0, 1.0a, and 2.0". support.microsoft.com. 2014-02-28. Archived from the original on 2016-03-22. Retrieved 2019-12-05.

## External links

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* Microsoft Windows Sound System soundcards, YJFY Computer Component Museum

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PC sound cards

IBM compatible standards|

* Tandy 3-Voice (1983)
* MPU-401 (1984)
* IBM Music Feature Card (1987)
* AdLib (1987)
* Covox (1987)
* Roland MT-32 (1987)
* Roland LAPC-I (1989)
* Sound Blaster (1989)
* SSI-2001 (1989)
* General MIDI (1991)
* Pro AudioSpectrum (1991)
* Roland GS (1991)
* Roland Sound Canvas (1991)
* Roland SC-55 (1991)
* TBC Multisound (1991)
* Windows Sound System (1992)
* Gravis Ultrasound (1992)
* Ensoniq Soundscape S-2000 (1994)
* Yamaha XG (1994)
* Aztech WaveRider (1995)
* Aureal Semiconductor Vortex (1997)
* AC'97 (1997)
* ESS AudioDrive (1997)
* Ensoniq AudioPCI (1997)
* Sound Blaster Live! (1998)
* Terratec Audiosystem EWS64 (1998)
* General MIDI Level 2 (1999)
* Environmental Audio Extensions (2001)
* Intel High Definition Audio (2004)

Other standards|

* MML (1978)
* SFG-01 (1983)
* SFG-02 (1984)
* Tandy (1984)
* MSX-Audio (1984)
* MSX-Music (1987)

Related|

* PC speaker
* Wave Blaster
* MIDI
* Comparison of MIDI standards

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