TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

sound speed [2 records]

Record 1 2014-01-23

English

Subject field(s)
  • Acoustics (Physics)
  • Atmospheric Physics
DEF

The speed at which sound travels in a given medium under specified conditions. [Definition standardized by NATO.]

OBS

The speed [of sound depends] on the temperature and the properties of the medium.

OBS

The speed of sound at sea level in the International Standard Atmosphere is 1108 ft/second, 658 knots, 1215 km/hour.

OBS

speed of sound: term standardized by ISO and NATO.

Key term(s)
  • sound speed
  • velocity of sound

French

Domaine(s)
  • Acoustique (Physique)
  • Physique de l'atmosphère
DEF

Vitesse à laquelle le son se déplace dans un milieu donné et dans des conditions bien définies. [Définition normalisée par l'OTAN.]

OBS

La vitesse du son au niveau de la mer dans l'atmosphère [type internationale] est de 1 108 pieds à la seconde, 658 nœuds ou 1 215 km à l'heure.

OBS

vitesse du son : terme normalisé par l'ISO et l'OTAN.

Spanish

Campo(s) temático(s)
  • Acústica (Física)
  • Física de la atmósfera
DEF

Velocidad a la que viaja el sonido en un medio determinado bajo condiciones específicas.

OBS

[La] Velocidad depende de la temperatura y de la naturaleza de ese medio.

OBS

La velocidad del sonido a nivel del mar en una Atmósfera Internacional Normal es de 1.215 Km/h., 1.108 pies/segundo, 658 nudos.

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Record 2 1990-02-19

English

Subject field(s)
  • Audiovisual Techniques and Equipment
  • Cinematography
DEF

the normal speed at which a motion-picture camera or projector is operated in making or showing sound films, namely 24 frames per second.

CONT

Most silent film is shot at the standard sound speed of 24 frames per second.

French

Domaine(s)
  • Audiovisuel (techniques et équipement)
  • Cinématographie

Spanish

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