Auditory front end customization
First Claim
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1. A method of customizing a cochlear implant front end, the method comprising:
- receiving a known audio signal;
sampling the received audio signal at one or more locations along one or more signal paths to generate a sampled audio signal;
comparing the sampled audio signal against the known audio signal to detect an undesired transformation of the sampled audio signal;
based on the comparison, generating a digital filter operative to minimize the undesired transformation of the sampled audio signal; and
providing the generated filter in the one or more signal paths.
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Abstract
A method and system for implementing an acoustical front end customization are disclosed. The customization is implemented to optimize the sound level for each individual cochlear implant user. A known audio signal is generated using a sound source and captured by a microphone system. The captured sound signal is sampled at one or more locations along the signal processing pathway, and a spectrum is determined for the sampled signal and the known signal. A ratio of the two spectrums is related to the undesired transformation of the sampled signal, and a digital filter is designed based on the ratio to filter out the undesired transformation.
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Citations
20 Claims
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1. A method of customizing a cochlear implant front end, the method comprising:
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receiving a known audio signal; sampling the received audio signal at one or more locations along one or more signal paths to generate a sampled audio signal; comparing the sampled audio signal against the known audio signal to detect an undesired transformation of the sampled audio signal; based on the comparison, generating a digital filter operative to minimize the undesired transformation of the sampled audio signal; and providing the generated filter in the one or more signal paths. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for customizing a cochlear implant front end, the system comprising:
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a signal generator operable to generate a known audio signal; a microphone system operable to capture the generated audio signal; a signal processing system operable to process the captured audio signal along one or more signal paths; a signal sampler operable to sample the processed audio signal at one or more locations along one of the one or more signal paths; a signal comparator operable to compare the sampled audio signal against the generated known audio signal to detect an undesired transformation of the sampled audio signal; and a signal filter in one of the one or more signal paths operable to filter the sampled audio signal based on the comparison to minimize the undesired transformation of the sampled audio signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification