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Soundbar
A soundbar is a long, narrow loudspeaker enclosure placed below or beside a television to improve on thin TV speakers, ranging from stereo bars to Dolby Atmos systems.
SoundCloud
SoundCloud is an audio platform founded in Berlin in 2007 where creators upload, share, and stream sound, hosting more than 400 million tracks from over 40 million artists.
Soundex
Soundex is a phonetic algorithm that converts names, especially surnames, into letter-plus-three-digit codes by English sound, patented in 1918 and used to index United States censuses.
SoundFont
SoundFont is a sample-based synthesis file format developed by E-mu Systems and Creative Technology, introduced with the Sound Blaster AWE32 in 1994; its current version, 2.04, dates from 2002.
SoundHound AI
SoundHound AI, Inc. is a Santa Clara, California, voice and agentic AI company that builds speech recognition and conversational AI products for automotive, restaurant, and enterprise customers.
Sounding reference signal
The sounding reference signal (SRS) is an uplink pilot signal a user equipment transmits so the base station can measure the radio channel in LTE and 5G NR.
Sounding rocket
A sounding rocket, or research rocket, is a small instrument-carrying rocket that flies a suborbital parabolic path to take scientific measurements in space or the upper atmosphere.
Sounding rocket payload instrumentation
Sounding rocket payload instrumentation is the recoverable, instrumented package flown above the atmosphere on suborbital research rockets, carrying experiments for astronomy and microgravity research with telemetry, attitude control, and parachute recovery systems.
SoundStream
SoundStream is a neural audio codec from Google Research, described in 2021, that compresses speech, music, and general audio with one network, outperforming Opus at a quarter of its bitrate.
SoundThinking, Inc.
SoundThinking, Inc., formerly ShotSpotter, is an American public safety technology company founded in 1996, known for its ShotSpotter acoustic gunshot detection system used by police in about 170 cities.
Souo S2000
The Souo S2000 is a luxury touring motorcycle from Souo Motorcycle, Great Wall Motor's brand, and the first with a flat-eight engine, launched in 2024.
Souplantation and Sweet Tomatoes
Souplantation and Sweet Tomatoes were the two names of an American salad-bar buffet chain founded in San Diego in 1978, which closed all 97 locations in 2020.
Souq (company)
Souq.com, Arabic for market, was a Dubai-based e-commerce company founded in 2005 that became the Arab world's largest online marketplace before Amazon bought it in 2017.
Sour crude
Sour crude is crude oil containing more than 1% sulfur, which gives it a rotten-egg smell and requires special refining compared with low-sulfur sweet crude.
Source (game engine)
Source is a 3D game engine by Valve, successor to the GoldSrc engine behind Half-Life, that debuted with Counter-Strike: Source in 2004 and introduced real-world physics and shader-based rendering.
Source code
Source code is the human-readable statements and instructions written in a programming language such as C, Java, or Python, from which software is authored and licensed.
Source follower
A source follower, also called the common-drain amplifier, is a single-transistor amplifier whose output at the FET source follows the gate input with gain just below one, making it a standard buffer and impedance-matching stage.
Source lines of code
Source lines of code, or SLOC, is a count of the lines in a program's source code, used to measure software size and as an input to cost-estimation models.
Source routing
Source routing is a packet-forwarding technique where the sender specifies the packet's path, carried in the packet itself, spanning IPv4 options, Token Ring, DSR, and Segment Routing.
Source term estimation
Source term estimation (STE) infers the location, timing, and strength of an atmospheric pollutant release from measured concentrations, used in nuclear accident response and greenhouse gas accounting.
Source-available software
Source-available software is software whose source code is published under licenses with restrictions, such as bans on competing hosted services, that fail the Open Source Definition.
Source–filter model
The source–filter model represents voice production as a glottal sound source shaped by a vocal-tract filter whose resonances create formants; it underpins speech technology from LPC to neural vocoders.
SourceForge
SourceForge, also known as Sourceforge.net, is a web-based software forge launched in November 1999 that combines open-source code hosting, bug tracking, mailing lists, and binary downloads.
Sourcegraph
Sourcegraph is a code intelligence platform, founded by Quinn Slack and Beyang Liu in 2013, that indexes and searches large codebases across multiple code hosts, offering code navigation, AI-assisted coding, and Batch Changes.
Sourcegraph Cody
Sourcegraph Cody is an AI coding assistant by Sourcegraph, released in 2023 for VS Code, JetBrains, and Neovim, that grounds context in code search and became enterprise-only in 2025.
South Aegean Coal Mines
The South Aegean coal mines are lignite mines near Yatağan and Milas in Muğla Province, Turkey, privatized in 2013 and supplying the Yatağan thermal power station.
South Africa and weapons of mass destruction
South Africa was the first country to dismantle its entire nuclear, chemical, and ballistic weapons programs after building six gun-type fission devices, retaining civilian nuclear status.
South Africa SACAA Part 101
South Africa SACAA Part 101 is the set of national regulations governing drone operation in South Africa, administered by the South African Civil Aviation Authority since 2015.
South African Airways
South African Airways (SAA) is a state-owned flag carrier founded in 1934 in Johannesburg. It exited business rescue in April 2021 and rebuilt its fleet.
South African Bureau of Standards
The South African Bureau of Standards, or SABS, is South Africa's national standardization institution. Established in 1945, it maintains about 7,500 national standards and provides certification, testing, and inspection services.