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    • 3. 发明申请
    • HEARING AID AND A METHOD OF IMPROVED AUDIO REPRODUCTION
    • 听力援助和改进音频再现的方法
    • WO2012076044A1
    • 2012-06-14
    • PCT/EP2010/069145
    • 2010-12-08
    • Widex A/SCEDERBERG, JorgenANDERSEN, Henning HaugaardMEINCKE, Mette DahlNIELSEN, Andreas Brinch
    • CEDERBERG, JorgenANDERSEN, Henning HaugaardMEINCKE, Mette DahlNIELSEN, Andreas Brinch
    • H04R25/00G10L11/06
    • H04R25/353G10L25/93
    • A hearing aid comprising a frequency shifter (20) has means (22) for detecting a first frequency and a second frequency in an input signal. The frequency shifter (20) transposes a first frequency range of the input signal to a second frequency range of the input signal based on the presence of a fixed relationship between the first and the second detected frequency. The means (34, 35, 36) for detecting the fixed relationship between the first and the second frequency is used for controlling the frequency transposer (20). A speech detector (26) configured for detecting the presence of voiced and unvoiced speech is provided for suppressing the transposition of voiced-speech signals in order to preserve the speech formants. The purpose of transposing frequency bands in this way in a hearing aid is to render inaudible frequencies audible to a user of the hearing aid while maintaining the original envelope, harmonic coherence and speech intelligibility of the signal. The invention further provides a method for shifting a frequency range of an input signal in a hearing aid.
    • 包括频移器(20)的助听器具有用于检测输入信号中的第一频率和第二频率的装置(22)。 基于第一和第二检测频率之间的固定关系的存在,移频器(20)将输入信号的第一频率范围转换到输入信号的第二频率范围。 用于检测第一和第二频率之间的固定关系的装置(34,35,36)用于控制变频器(20)。 提供了一种用于检测有声和无声语音的存在的语音检测器(26),用于抑制浊音语音信号的转置以便保留语音共振峰。 在助听器中以这种方式转置频带的目的是使助听器的用户听到无声频率,同时保持信号的原始包络,谐波相干性和语音清晰度。 本发明还提供一种用于移动助听器中的输入信号的频率范围的方法。