Low-frequency

Attenuate the low frequencies in a speech wave

Attenuate the low frequencies in a speech wave
  1. What is low-frequency attenuation?
  2. What is attenuation of sound waves?
  3. What are low-frequency sound waves called?

What is low-frequency attenuation?

The Low Frequency Attenuation (LFA) filter was designed to help mitigate T-wave oversensing and was first incorporated in the Fortify and Unify family of ICDs. When the LFA filter is programmed on (the nominal setting), the filter attenuates, or decreases the amplitude of, low-frequency signals.

What is attenuation of sound waves?

When sound travels through a medium, its intensity diminishes with distance. This weakening in the energy of the wave results from two basic causes, scattering and absorption. The combined effect of scattering and absorption is called attenuation.

What are low-frequency sound waves called?

At the other end of the spectrum are very low-frequency sounds (below 20 Hz), known as infrasound. Elephants use infrasound for communication, making sounds too low for humans to hear. Because low frequency sounds travel farther than high frequency ones, infrasound is ideal for communicating over long distances.

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