The Solution
- Extract the time cues in the music
- Process these with proprietary algorithms
- Multiply the product by very high pitched carriers
- Combine the modulated music with the original signal
- Listen by air and bone to high fidelity even in noise
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Those with hearing loss can re-experience high fidelity, high
pitched music and speech, through the use of our proprietary system
that extracts timbre cues from music and multiplies these by high
frequency carriers. The multiplied or modulated music is specially
amplified and delivered to the skin of the head or neck with special
piezoelectric transducers. The brain sums both the natural and
modulated music in the auditory cortex. |
Our music enhancement technology
Improved temporal resolution in plucked and rapid attack instruments.
High frequency modulation of music allows renewed sense of pitch
and timbre in musicians and serious music listeners even those
with high frequency sensorineural hearing loss.
Our vocal technology
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Upper Trace: Natural speech waveform
Lower Trace: STS modulated waveform |
High frequency enhancement
- Rapid filtering and modulating algorithms
- consonant gain boost ~8dB
- power ~110 dB re: 1 µN
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3 points to consider
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- Loudness (volume) helps in a limited way because it adds some high frequencies due to cochlear nonlinearities, but it's outweighed by the distortion accompanying amplification.
- Bone conduction can deliver more high frequency cues than air conduction since it bypasses the low pass filtering of the middle ear.
- This is not the typical bone conduction hearing. It is a high audio frequency adjunct to standard air conduction music systems now in use. This is American technology, developed at an American university, with one US Patent issued (4,982,434) and one in prosecution.
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For more information contact: Dr. Martin L. Lenhardt (804) 828-9687
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