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Frequency modulation

Frequency modulation has been studied in 2 papers since 2016: 2 observational studies in people. The newest paper, Aug 1, 2017: “Older and younger adults' identification of sentences filtered with amplitude and frequency modulations in quiet and noise”.

Intervention

2 papers study it1 findingUpdated

See all 2

“Older adults had elevated FM detection thresholds but received the same-size FM benefit as younger adults”
Older and younger adults' identification of sentences filtered with amplitude and frequency modulations in quiet and noiseThe Journal of the Acoustical Society of America2017doi:10.1121/1.4997603

C, W, M, H: cells, worms or flies, mice, humans. Dark: independent labs found the same change there. Light: one lab or one study. Outline: nothing yet.

  • 1 lab in 1 country
  • Funder: Australian Research Council
  • Humans2

What did studies of Frequency modulation find?

1

Studies of Frequency modulation measured 1 outcome; the most studied are speech recognition (1 study).

Speech recognition

upin humans1

1 study

  1. Frequency modulation improves speech recognition in humans.

    “Older adults had elevated FM detection thresholds but received the same-size FM benefit as younger adults”

    Human trial

    Older and younger adults' identification of sentences filtered with amplitude and frequency modulations in quiet and noise

    The Journal of the Acoustical Society of America

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