The audible warning device shall emit a continuous and uniform sound; its acoustic spectrum shall not vary substantially during its operation.
El aparato productor de señales acústicas emitirá un sonido continuo y uniforme, cuyo espectro acústico no variará sustancialmente durante su funcionamiento.
Jose Antonio Ramos is a Canaries artist who has introduced the art of the “timple” to a completely unedited acoustic spectrum.
Propuesta de Reglamento del Parlamento Europeo y del Consejo sobre la eliminación de controles practicados en las fronteras de los Estados miembros en el transporte por carretera y por vía navegable (COM #- C#-#/#- #/#(CODCommon crawl Common crawl
In order to take account of the varying sensitivity of the hearing system to the different frequencies of the acoustic spectrum (# to # Hz) when calculating exposure to noise, weighting curves are used to determine spectral density measured according to the sensitivity of the hearing system
2.12 In order to take account of the varying sensitivity of the hearing system to the different frequencies of the acoustic spectrum (20 to 20 000 Hz) when calculating exposure to noise, weighting curves are used to determine spectral density measured according to the sensitivity of the hearing system.
THE WARNING DEVICE SHALL HAVE ACOUSTIC CHARACTERISTICS (FREQUENCY SPECTRUM OF THE SOUND, LEVEL OF SOUND PRESSURE) AND MECHANICAL CHARACTERISTICS SUCH THAT IT CAN SATISFY THE FOLLOWING TESTS, IN THE ORDER INDICATED
The warning device shall have acoustic characteristics (frequency spectrum of the sound, level of sound pressure) and mechanical characteristics such that it can satisfy the following tests, in the order indicated.
1.2 The warning device shall have acoustic characteristics (frequency spectrum of the sound, level of sound pressure) and mechanical characteristics such that it can satisfy the following tests, in the order indicated.
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