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Analog vs. Digital “’A Hearing Perspective”. Andy Raguskus, CEO SONIC innovations, Inc. Range of Normal Hearing. 120. Upper Comfort Level. Lawnmower. 100. Loudness. (dB). 80. Vowels. 60. 40. Consonants. 20. Threshold of hearing. 0.

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analog vs digital a hearing perspective

Analog vs. Digital“’A Hearing Perspective”

Andy Raguskus, CEO

SONIC innovations, Inc.

range of normal hearing
Range of Normal Hearing

120

Upper Comfort Level

Lawnmower

100

Loudness

(dB)

80

Vowels

60

40

Consonants

20

Threshold of hearing

0

250 500 1000 2000 4000 8000

Frequency (Hz)

typical hearing impairment
Typical Hearing Impairment

120

Upper Comfort Level

Lawnmower

100

Loudness

(dB)

80

Vowels

Threshold of Hearing

60

40

Consonants

20

0

250 500 1000 2000 4000 8000

Frequency (Hz)

analog 2 channels
Analog: 2 Channels

120

100

Loudness

(dB)

80

60

40

20

0

250 500 1000 2000 4000 8000

Frequency (Hz)

digital graphic equalizer
Digital: Graphic Equalizer

120

100

Loudness

(dB)

80

60

40

20

0

250 500 1000 2000 4000 8000

Frequency (Hz)

digital advantages
Digital Advantages
  • Understanding Speech in Noise
    • Graphic Equalizer
    • Compression
    • Temporal Cues
    • Background Noise Suppression
  • Reprogramming
  • Tiny Size Overcomes “Stigma”
  • Battery Life
summary
Summary
  • If the algorithms are robust, digital implementation is better than analog.
  • If the algorithms are not effective (majority of hearing aids in the world today), analog vs. digital doesn’t matter.