초록 ▼

A system and method for improving clarity of an audio signal selects frequencies of the audio signal for processing and adds even harmonic distortion to the selected frequencies, preferably, of at least the second order. The system and method are particularly suited for hearing aid, voice messaging,

A system and method for improving clarity of an audio signal selects frequencies of the audio signal for processing and adds even harmonic distortion to the selected frequencies, preferably, of at least the second order. The system and method are particularly suited for hearing aid, voice messaging, and telephony applications. In addition, the system and method may be applied to other very low bandwidth signals, such as data compressed audio signals, computer voice files, computer audio files, and numerous other technologies which have an audio response less than normal human perception. The technique also applies to the use of perceptually coded audio.

대표청구항 ▼

1. A method for improving clarity of an input signal for a hearing aid, the method comprising:selecting frequencies of the input signal for processing; and adding even harmonic distortion to the selected frequencies by applying a nonlinear transfer function having a ratio of positive half-cycle gain

1. A method for improving clarity of an input signal for a hearing aid, the method comprising:selecting frequencies of the input signal for processing; and adding even harmonic distortion to the selected frequencies by applying a nonlinear transfer function having a ratio of positive half-cycle gain to a negative half-cycle gain greater than unity.