Abstract: A method for providing hearing assistance to a user, comprising capturing audio signals by a microphone arrangement; measuring at least one mechanical parameter; selecting an audio signal processing scheme according to the measured at least one mechanical parameter; processing, by a signal processing unit, the captured audio signals according to the selected audio signal processing scheme; transmitting the processed audio signals to stimulating means worn at or in at least one of the user's ears via a wireless audio link; and stimulating the user's hearing by said stimulating means according to the processed audio signals.

Abstract: There is provided a method for providing hearing assistance to a user (101, 301), comprising: capturing audio signals by a microphone arrangement (26) comprising at least two spaced apart microphones (M1, M2); estimating the total energy contained in the voice spectrum of the audio signals captured at least one of the microphones; estimating the value of the direction of arrival of the captured audio signals by comparing the audio signals captured by at least two of the spaced apart microphones; judging whether a voice is present close to microphone arrangement by taking into account the estimated total energy contained in the voice spectrum of the captured audio signals and the estimated value of the direction of arrival of the captured audio signals; outputting a signal representative of said judgement; processing said captured audio signals according to said signal representative of said judgement; and stimulating the user's hearing, by stimulating means worn at or in at least one of the user's ears (39),

Abstract: There is provided a method for providing hearing assistance to a user (101, 301), comprising: capturing audio signals by a microphone arrangement (26) comprising at least two spaced apart microphones (M1, M2); estimating the total energy contained in the voice spectrum of the audio signals captured at least one of the microphones; estimating the value of the direction of arrival of the captured audio signals by comparing the audio signals captured by at least two of the spaced apart microphones; judging whether a voice is present close to microphone arrangement by taking into account the estimated total energy contained in the voice spectrum of the captured audio signals and the estimated value of the direction of arrival of the captured audio signals; outputting a signal representative of said judgement; processing said captured audio signals according to said signal representative of said judgement; and stimulating the user's hearing, by stimulating means worn at or in at least one of the user's ears (39),

Abstract: A method for providing hearing assistance to a user, comprising capturing audio signals by an internal microphone arrangement and supplying the captured audio signals a central signal processing unit; estimating whether a certain type of external audio signal supply device is connected to the audio signal processing unit in order to supply external audio signals to the central signal processing unit, and selecting an audio signal processing scheme according to the estimated type of external audio signal supply device; processing, the captured audio signals and the external audio signals according to the selected audio signal processing scheme; transmitting the processed audio signals to stimulating means worn at or in at least one of the user's ears via a wireless audio link; and stimulating the user's hearing by said stimulating means according to the processed audio signals.

Abstract: A method for providing hearing assistance to a user, comprising capturing audio signals by a microphone arrangement; measuring at least one mechanical parameter; selecting an audio signal processing scheme according to the measured at least one mechanical parameter; processing, by a signal processing unit, the captured audio signals according to the selected audio signal processing scheme; transmitting the processed audio signals to stimulating means worn at or in at least one of the user's ears via a wireless audio link; and stimulating the user's hearing by said stimulating means according to the processed audio signals.

Abstract: The speech is sampled in such a way as to obtain successive voice frames each including a predetermined number of samples, and with each voice frame are determined parameters of a code-excited linear prediction model. The parameters include a long-term excitation digital word vi extracted from an adaptive coded directory LTD, and an associated long-term gain Ga, as well as a short-term excitation word cj extracted from a fixed coded directory STD and an associated short-term gain Gc. The product of the long-term excitation extracted word times the associated long-term gain is summed SM with the product of the short-term excitation extracted word times the associated short-term gain. The summed digital word is filtered in a low-pass filter FLCT having a cutoff frequency greater than a quarter of the sampling frequency and less than a half of the latter, and the adaptive coded directory is updated with the filtered word.

Abstract: A method for encoding wideband speech includes sampling the speech to obtain successive voice frames each comprising a predetermined number of samples, and determining for each voice frame parameters of a linear prediction model. The parameters include a long-term excitation word extracted from an adaptive coded directory, and a short-term excitation word extracted from a fixed coded directory. The extraction of the long-term excitation word is performed using a first weighting filter. The extraction of the short-term excitation word is performed using a second weighting filter cascaded with a third weighting filter. The first and third weighting filters are equal.

Abstract: A method for encoding speech includes sampling speech to obtain successive voice frames each having a predetermined number of samples, and determining parameters of a linear prediction model for each voice frame. The parameters include a long-term excitation word extracted from an adaptive coded directory using a first linear prediction filter and an associated long-term gain. The parameters further include a short-term excitation word extracted from a fixed coded directory and an associated short-term gain. The adaptive coded directory is updated based upon the extracted long-term excitation word and the extracted short-term excitation word. The first linear prediction filter is updated using the short-term excitation word filtered by a second filter. The second filter has an order greater than or equal to 1 and coefficients thereof depend on the long-term gain for reducing a short-term excitation contribution when a long-term excitation gain is greater than a threshold.