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Sound Blaster
Sound Blaster is a family of PC sound cards made by Creative Technology, first launched in 1989 and the de facto PC audio standard of the DOS era.
Sound Blaster Audigy
The Sound Blaster Audigy is a family of PC sound cards produced by Creative Technology from 2001, known for EAX Advanced HD environmental audio and a built-in FireWire port.
Sound card
A sound card, also called an audio card, is an expansion card or integrated circuit providing audio input and output for a computer, converting digital audio data to analog signals.
Sound change
Sound change is the spontaneous change in a language's pronunciation over time, studied via splits, mergers, and shifts. Key issues: Neogrammarian regularity versus lexical diffusion, actuation, and Grimm's Law.
Sound City (film)
Sound City (2013) is Dave Grohl's documentary debut about Sound City Studios in Van Nuys, its custom Neve 8028 console, its closure in 2011, and new recordings made after Grohl moved the board to Studio 606.
Sound City Studios
Sound City Studios, Van Nuys recording studio opened 1969 in a former Vox building; home of a custom Neve 8028 console used on Nevermind, Fleetwood Mac and Tom Petty records; closed 2011, console moved to Dave Grohl's Studio 606.
Sound design
Sound design is the creative planning and creation of a work's audio elements in film, TV, radio, theater, and games. The term is credited to Walter Murch and Apocalypse Now (1979); film sound design centers on post-production editing, Foley, and mixing, while game sound uses adaptive and procedural audio.
Sound effect
A sound effect is a recorded, performed, or generated sound other than speech or music used to support performance. Covers ancient thunder machines, foley, electronic cue playback (QLab), and AI generation.
Sound energy
Sound energy is the mechanical energy a sound wave carries through a medium such as air, water, or a solid, moving without net transport of the medium's matter.
Sound event detection
Sound event detection (SED) is a machine learning task that identifies acoustic events in audio, outputting each event's class label with onset and offset times.
Sound exposure level
Sound exposure level (SEL) is an acoustic measure of the total sound energy of an event, used to compare short loud sounds with longer quieter ones.
Sound film
Sound film: motion pictures with synchronized recorded sound, also called talkies. Key systems were Vitaphone sound-on-disc (1926 Don Juan, 1927 The Jazz Singer) and optical sound-on-film (Movietone, Photophone), which displaced silent cinema by the early 1930s.
Sound from ultrasound
Sound from ultrasound, also called hypersonic sound or the audio spotlight, generates audible sound in air when a modulated ultrasonic beam self-demodulates, staying confined to a narrow, directional beam.
Sound Group
Sound Group (桑德集团), formally Beijing Sound Environmental Protection Group, is a Chinese environmental protection and new energy group founded by Wen Yibo and based in Beijing.
Sound horizon
The sound horizon is the distance sound waves traveled in the primordial plasma before recombination, about 147 Mpc, surviving as the baryon acoustic oscillation scale.
Sound intensity
Sound intensity, also called acoustic intensity, is the time-averaged rate at which sound energy flows through a unit area, a vector quantity expressed in watts per square meter.
Sound intensity probe
A sound intensity probe is a transducer system that measures the directional flow of acoustic energy per unit area, used for noise source mapping and sound power determination.
Sound level meter
A sound level meter, also called a decibel meter or noise meter, is an instrument that measures sound pressure and displays it as a decibel level.
Sound localization
Sound localization: identifying a sound's direction and distance using interaural time and level differences plus pinna spectral (HRTF) cues; duplex theory, precedence effect, hearing-device limits, and animal comparisons.
Sound of Falling
Sound of Falling (In die Sonne schauen) is a 2025 German drama by Mascha Schilinski about four girls on the same Altmark farm across a century; it won the 2025 Cannes Jury Prize and was Germany's 2026 Oscar submission.
Sound of Freedom (film)
Sound of Freedom is a 2023 American drama film directed by Alejandro Monteverde and starring Jim Caviezel as Tim Ballard, a former agent rescuing trafficked children in Colombia.
Sound of Hope: The Story of Possum Trot
Sound of Hope: The Story of Possum Trot is a 2024 Angel Studios faith-based drama directed by Joshua Weigel, starring Nika King and Demetrius Grosse as Donna and W.C. Martin, whose Texas church adopted 77 foster children; it earned $11.7M worldwide and an A+ CinemaScore.
Sound of Metal
Sound of Metal is Darius Marder's 2019 debut drama starring Riz Ahmed as drummer Ruben Stone, who loses his hearing. Premiered at TIFF 2019, released by Amazon in 2020, it won Oscars for Best Sound and Best Film Editing.
Sound of Mull
The Sound of Mull is a narrow sea channel on Scotland's west coast, separating the Isle of Mull from the Morvern peninsula on the mainland.
Sound of My Voice
Sound of My Voice (2011) is an independent drama directed by Zal Batmanglij, co-written with and starring Brit Marling as cult leader Maggie, who claims to be a time traveler from 2054; released by Fox Searchlight in 2012, it grossed $424,088 and led to The OA.
Sound Physicians
Sound Physicians is a physician-led medical group founded in Tacoma, Washington, in 2001 that staffs hospital medicine, emergency medicine, and critical care for hospitals nationwide.
Sound poetry
Sound poetry (German Lautpoesie) is experimental poetry that abandons meaningful words and composes speech sounds for vocal performance, originating in Dada with Hugo Ball in 1916.
Sound power
Sound power, also called acoustic power, is the rate at which a source radiates acoustic energy in watts. Unlike sound pressure, it does not depend on distance or the room.
Sound pressure
Sound pressure, also called acoustic pressure, is the local deviation from ambient pressure caused by a sound wave, measured in pascals and expressed as sound pressure level in decibels.
Sound pressure level
Sound pressure level (SPL) is a logarithmic measure of sound pressure in decibels, referenced to 20 micropascals in air, and the basis of most noise measurement.