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1. 发明授权

US10869140B2 Determination of room reverberation for signal enhancement 有权
公开(公告)号：US10869140B2
公开(公告)日：2020-12-15
申请号：US15512877
申请日：2015-09-25
申请人： MED-EL Elektromedizinische Geraete GmbH
发明人： Cornelia Falch , Ernst Aschbacher , Florian Frühauf , Thomas Schwarzenbeck
IPC分类号： H04R25/00 , G10L21/02 , A61N1/36 , H04R27/00 , G10L21/0208
CPC分类号： H04R25/505 , A61N1/36036 , G10L21/02 , H04R25/50 , H04R25/554 , G10L2021/02082 , H04R27/00 , H04R2225/41 , H04R2225/43 , H04R2225/55 , H04R2225/67 , H04R2227/007
摘要： A hearing prosthesis arrangement is described for a hearing assisted patient. A microphone senses an acoustic environment around the hearing assisted patient and generates a corresponding microphone output signal. An audio signal processor processes the microphone output signal and produces a corresponding prosthesis stimulation signal to the patient for audio perception. The audio signal processor includes a dereverberation process that measures a dedicated reverberation reference signal produced in the acoustic environment to determine reverberation characteristics of the acoustic environment, and reduces reverberation effects in the hearing prosthesis stimulation signal based on the reverberation characteristics.

2. 发明授权

US10785581B2 Recursive noise power estimation with noise model adaptation 有权
公开(公告)号：US10785581B2
公开(公告)日：2020-09-22
申请号：US16302711
申请日：2017-06-12
申请人： MED-EL Elektromedizinische Geraete GmbH
发明人： Ernst Aschbacher , FLorian Frühauf
IPC分类号： H04R25/00 , G10L15/20 , G10L21/0232 , A61N1/36 , A61N1/05
摘要： A method of signal processing to generate hearing implant stimulation signals for a hearing implant system includes transforming an input sound signal into band pass signals each representing an associated frequency band of audio frequencies. The band pass signals are processed in a sequence of sampling time frames and iterative steps to produce a noise power estimate. This includes using a noise prediction model to determine if a currently observed signal sample includes a target signal, and if so, then updating a current noise power estimate without using the currently observed signal sample, and otherwise updating the current noise power estimate using the currently observed signal sample. The noise prediction model also is adapted based on the updated noise power estimate. The hearing implant stimulation signals are then developed from the band pass signals and the noise power estimate.

3. 发明授权

US09126041B2 Reduction of transient sounds in hearing implants 有权
公开(公告)号：US09126041B2
公开(公告)日：2015-09-08
申请号：US14488409
申请日：2014-09-17
申请人： MED-EL Elektromedizinische Geraete GmbH
发明人： Florian Frühauf , Ernst Aschbacher
IPC分类号： A61N1/00 , A61N1/36
CPC分类号： A61N1/36032 , A61N1/0541 , A61N1/36036 , H04R2225/67 , H04R2430/03
摘要： A method is described for generating electrode stimulation signals for electrode contacts in a cochlear implant electrode array. An input audio signal is processed to generate band pass channel signals that each represent an associated band of audio frequencies. A channel envelope is extracted from each channel signal. The input audio signal and the channel envelopes are processed to produce transient reduced envelopes based on: i. determining for each channel envelope a normalized channel-specific transient indicator characterizing transient noise present in the channel signal, ii. determining a combined transient indicator as a function of the channel-specific transient indicators, and iii. applying a channel-specific gain to the channel envelopes as a function of the combined transient indicator to produce the transient reduced envelopes. The transient reduced envelopes are then used to generate electrode stimulation signals to the electrode contacts.

4. 发明申请

US20150163604A1 Automatic Selection of Reduction or Enhancement of Transient Sounds 有权
标题翻译：自动选择减少或增强瞬态声音
公开(公告)号：US20150163604A1
公开(公告)日：2015-06-11
申请号：US14564818
申请日：2014-12-09
申请人： MED-EL Elektromedizinische Geraete GmbH
发明人： Florian Frühauf , Ernst Aschbacher
IPC分类号： H04R25/00 , A61N1/36
CPC分类号： A61N1/3606 , A61N1/36032 , A61N1/36036 , H04R2225/67
摘要： A system and method of generating electrode stimulation signals for electrode contacts in an electrode array associated with a hearing implant is presented. An input audio signal is processed to generate a plurality of band pass channel signals each representing an associated band of audio frequencies. A stationary noise reduction is applied so as to provide a stationary noise reduced channel envelope from each channel signal. A transient in one or more of the channel envelopes is detected. The channel envelopes are modified as a function of whether the transient is transient noise or transient speech, so as to form transient modified envelope. The transient modified envelopes are used to generate electrode stimulation signals to the electrode contacts.
摘要翻译：提出了一种在与听力植入物相关联的电极阵列中产生用于电极接触的电极刺激信号的系统和方法。处理输入音频信号以产生每个表示相关联的音频频带的多个带通信道信号。施加稳定的噪声降低，以便从每个信道信号提供稳定的降低噪声的信道包络。检测到一个或多个信道信封中的瞬变。频道信封被修改为瞬态是瞬态噪声还是瞬态语音的功能，以形成瞬态修改的信封。瞬态修改的信封用于产生电极触点的电极刺激信号。

5. 发明授权

US08929994B2 Reduction of transient sounds in hearing implants 有权
标题翻译：减少听力植入物中的瞬态声音
公开(公告)号：US08929994B2
公开(公告)日：2015-01-06
申请号：US13975487
申请日：2013-08-26
申请人： MED-EL Elektromedizinische Geraete GmbH
发明人： Florian Frühauf , Ernst Aschbacher
IPC分类号： A61N1/00 , A61N1/36
CPC分类号： A61N1/36032 , A61N1/0541 , A61N1/36036 , H04R2225/67 , H04R2430/03
摘要： A method is described for generating electrode stimulation signals for electrode contacts in a cochlear implant electrode array. An input audio signal is processed to generate band pass channel signals that each represent an associated band of audio frequencies. A channel envelope is extracted from each channel signal. The input audio signal and the channel envelopes are processed to produce transient reduced envelopes based on: i. determining for each channel envelope a normalized channel-specific transient indicator characterizing transient noise present in the channel signal, ii. determining a combined transient indicator as a function of the channel-specific transient indicators, and iii. applying a channel-specific gain to the channel envelopes as a function of the combined transient indicator to produce the transient reduced envelopes. The transient reduced envelopes are then used to generate electrode stimulation signals to the electrode contacts.
摘要翻译：描述了一种用于在耳蜗植入电极阵列中产生用于电极接触的电极刺激信号的方法。处理输入音频信号以产生每个表示相关联的音频频带的带通信道信号。从每个信道信号提取信道包络。输入音频信号和通道信封被处理以产生基于以下的瞬时缩小的信封：i。为每个信道包络确定表征信道信号中存在的瞬态噪声的归一化信道特定瞬态指示符，ii。确定组合的瞬时指示符作为通道特定瞬态指标的函数，以及iii。将通道特定的增益作为组合的瞬态指示器的函数应用于通道封套，以产生瞬时降低的信封。然后使用瞬时降低的包络线来产生电极触点的电极刺激信号。

6. 发明申请

US20210174824A1 Neural Network Audio Scene Classifier for Hearing Implants 有权
公开(公告)号：US20210174824A1
公开(公告)日：2021-06-10
申请号：US17263068
申请日：2019-07-24
申请人： MED-EL Elektromedizinische Geraete GmbH
发明人： Rainer Martin , Semih Agcaer , Florian Frühauf , Ernst Aschbacher , Erhard Rank
IPC分类号： G10L25/51 , G10L25/18 , G10L25/30 , H04R25/00
摘要： An audio scene classifier classifies an audio input signal from an audio scene and includes a pre-processing neural network configured for pre-processing the audio input signal based on initial classification parameters to produce an initial signal classification, and a scene classifier neural network configured for processing the initial scene classification based on scene classification parameters to produce an audio scene classification output. The initial classification parameters reflect neural network training based on a first set of initial audio training data, and the scene classification parameters reflect neural network training on a second set of classification audio training data separate and different from the first set of initial audio training data. A hearing implant signal processor configured for processing the audio input signal and the audio scene classification output to generate the stimulation signals to the hearing implant for perception by the patient as sound.

7. 发明授权

US09498626B2 Automatic selection of reduction or enhancement of transient sounds 有权
标题翻译：自动选择减少或增强瞬态声音
公开(公告)号：US09498626B2
公开(公告)日：2016-11-22
申请号：US14564818
申请日：2014-12-09
申请人： MED-EL Elektromedizinische Geraete GmbH
发明人： Florian Frühauf , Ernst Aschbacher
IPC分类号： A61N1/36
CPC分类号： A61N1/3606 , A61N1/36032 , A61N1/36036 , H04R2225/67
摘要： A system and method of generating electrode stimulation signals for electrode contacts in an electrode array associated with a hearing implant is presented. An input audio signal is processed to generate a plurality of band pass channel signals each representing an associated band of audio frequencies. A stationary noise reduction is applied so as to provide a stationary noise reduced channel envelope from each channel signal. A transient in one or more of the channel envelopes is detected. The channel envelopes are modified as a function of whether the transient is transient noise or transient speech, so as to form transient modified envelope. The transient modified envelopes are used to generate electrode stimulation signals to the electrode contacts.
摘要翻译：提出了一种在与听力植入物相关联的电极阵列中产生用于电极接触的电极刺激信号的系统和方法。处理输入音频信号以产生每个表示相关联的音频频带的多个带通信道信号。施加稳定的噪声降低，以便从每个信道信号提供稳定的降低噪声的信道包络。检测到一个或多个信道信封中的瞬变。频道信封被修改为瞬态是瞬态噪声还是瞬态语音的功能，从而形成瞬态修改的信封。瞬态修改的信封用于产生电极触点的电极刺激信号。

8. 发明申请

US20140058478A1 Reduction of Transient Sounds in Hearing Implants 有权
标题翻译：减少听觉植入物中的瞬态声音
公开(公告)号：US20140058478A1
公开(公告)日：2014-02-27
申请号：US13975487
申请日：2013-08-26
申请人： MED-EL Elektromedizinische Geraete GmbH
发明人： Florian Frühauf , Ernst Aschbacher
IPC分类号： A61N1/36
CPC分类号： A61N1/36032 , A61N1/0541 , A61N1/36036 , H04R2225/67 , H04R2430/03
摘要： A method is described for generating electrode stimulation signals for electrode contacts in a cochlear implant electrode array. An input audio signal is processed to generate band pass channel signals that each represent an associated band of audio frequencies. A channel envelope is extracted from each channel signal. The input audio signal and the channel envelopes are processed to produce transient reduced envelopes based on: i. determining for each channel envelope a normalized channel-specific transient indicator characterizing transient noise present in the channel signal, ii. determining a combined transient indicator as a function of the channel-specific transient indicators, and iii. applying a channel-specific gain to the channel envelopes as a function of the combined transient indicator to produce the transient reduced envelopes. The transient reduced envelopes are then used to generate electrode stimulation signals to the electrode contacts.
摘要翻译：描述了一种用于在耳蜗植入电极阵列中产生用于电极接触的电极刺激信号的方法。处理输入音频信号以产生每个表示相关联的音频频带的带通信道信号。从每个信道信号提取信道包络。输入音频信号和通道信封被处理以产生基于以下的瞬时缩小的信封：i。为每个信道包络确定表征信道信号中存在的瞬态噪声的归一化信道特定瞬态指示符，ii。确定组合的瞬时指示符作为通道特定瞬态指标的函数，以及iii。将通道特定的增益作为组合的瞬态指示器的函数应用于通道封套，以产生瞬时降低的信封。然后使用瞬时降低的包络线来产生电极触点的电极刺激信号。

9. 发明公开

US20230226352A1 Neural Network Audio Scene Classifier for Hearing Implants 审中-公开
公开(公告)号：US20230226352A1
公开(公告)日：2023-07-20
申请号：US18182139
申请日：2023-03-10
申请人： MED-EL Elektromedizinische Geraete GmbH
发明人： Rainer Martin , Semih Agcaer , Florian Frühauf , Ernst Aschbacher , Erhard Rank
IPC分类号： A61N1/36 , H04R25/00
CPC分类号： A61N1/36038 , H04R25/507
摘要： An audio scene classifier classifies an audio input signal from an audio scene and includes a pre-processing neural network configured for pre-processing the audio input signal based on initial classification parameters to produce an initial signal classification, and a scene classifier neural network configured for processing the initial scene classification based on scene classification parameters to produce an audio scene classification output. The initial classification parameters reflect neural network training based on a first set of initial audio training data, and the scene classification parameters reflect neural network training on a second set of classification audio training data separate and different from the first set of initial audio training data. A hearing implant signal processor configured for processing the audio input signal and the audio scene classification output to generate the stimulation signals to the hearing implant for perception by the patient as sound.

10. 发明申请

US20190124454A1 Recursive Noise Power Estimation with Noise Model Adaptation 审中-公开
公开(公告)号：US20190124454A1
公开(公告)日：2019-04-25
申请号：US16302711
申请日：2017-06-12
申请人： MED-EL Elektromedizinische Geraete GmbH
发明人： Ernst Aschbacher , Florian Frühauf
IPC分类号： H04R25/00 , A61N1/36
摘要： A method of signal processing to generate hearing implant stimulation signals for a hearing implant system includes transforming an input sound signal into band pass signals each representing an associated frequency band of audio frequencies. The band pass signals are processed in a sequence of sampling time frames and iterative steps to produce a noise power estimate. This includes using a noise prediction model to determine if a currently observed signal sample includes a target signal, and if so, then updating a current noise power estimate without using the currently observed signal sample, and otherwise updating the current noise power estimate using the currently observed signal sample. The noise prediction model also is adapted based on the updated noise power estimate. The hearing implant stimulation signals are then developed from the band pass signals and the noise power estimate.

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