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  2. Acoustics - Wikipedia

    en.wikipedia.org/wiki/Acoustics

    Other acoustic scientists advance understanding of how sound is affected as it moves through environments, e.g. underwater acoustics, architectural acoustics or structural acoustics. Other areas of work are listed under subdisciplines below. Acoustic scientists work in government, university and private industry laboratories.

  3. Humnava Mere - Wikipedia

    en.wikipedia.org/wiki/Humnava_Mere

    The acoustic version was sung by Jubin Nautiyal. It released on 27 November 2018 by T-Series. Jubin Nautiyal said that after making acoustic version of 'Akh Lad Jaave', he received lot of requests from his fans, therefore, he also made an acoustic version of 'Humnava Mere' and paid gratitude to his fans. Guitar and Piano has been used in this ...

  4. Acoustic music - Wikipedia

    en.wikipedia.org/wiki/Acoustic_music

    Music portal; Acoustic music is music that solely or primarily uses instruments that produce sound through acoustic means, as opposed to electric or electronic means. While all music was once acoustic, the retronym "acoustic music" appeared after the advent of electric instruments, such as the electric guitar, electric violin, electric organ and synthesizer. [1]

  5. Ultrasound - Wikipedia

    en.wikipedia.org/wiki/Ultrasound

    Acoustic microscopy is the technique of using sound waves to visualize structures too small to be resolved by the human eye. High and ultra high frequencies up to several gigahertz are used in acoustic microscopes. The reflection and diffraction of sound waves from microscopic structures can yield information not available with light.

  6. Acousmatic sound - Wikipedia

    en.wikipedia.org/wiki/Acousmatic_sound

    Acousmatic sound is sound that is heard without an originating cause being seen. The word acousmatic, from the French acousmatique, is derived from the Greek word akousmatikoi (ἀκουσματικοί), which referred to probationary pupils of the philosopher Pythagoras who were required to sit in absolute silence while they listened to him deliver his lecture from behind a veil or screen to ...

  7. Acoustic - Wikipedia

    en.wikipedia.org/wiki/Acoustic

    Acoustic cryptanalysis, in cryptography, a side channel attack which exploits sounds Acoustic fingerprint , a condensed digital summary, a fingerprint generated from an audio signal Acoustic location , a pre-radar and pre-sonar method of detecting hostile vehicles and vessels

  8. Urdu Lughat - Wikipedia

    en.wikipedia.org/wiki/Urdu_Lughat

    Urdu Lughat is composed in the style of the Oxford English Dictionary.It is the most comprehensive, detailed and thick dictionary in the history of Urdu language. [citation needed] It is published by the Urdu Lughat Board, Karachi.

  9. Sound - Wikipedia

    en.wikipedia.org/wiki/Sound

    Sound is defined as "(a) Oscillation in pressure, stress, particle displacement, particle velocity, etc., propagated in a medium with internal forces (e.g., elastic or viscous), or the superposition of such propagated oscillation.