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1. 发明申请

WO2016020511A3 METHOD FOR REDUCING THE COMPREHENSIBILITY OF SPEECH SIGNALS, AND SEPARATING COMPONENT FOR INFLUENCING SOUND TRANSMISSION 审中-公开
标题翻译：一种用于减少语音信号和释放的成分的过程中，影响传输声音
公开(公告)号：WO2016020511A3
公开(公告)日：2016-04-07
申请号：PCT/EP2015068222
申请日：2015-08-07
申请人： FRAUNHOFER GES ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E V
发明人： LEISTNER PHILIP , DROTLEFF HORST , LIEBL ANDREAS , ZHOU XIAORU
IPC分类号： H04K3/00
CPC分类号： H04K3/825 , H04K3/45 , H04K2203/12
摘要： The invention relates to a method for reducing the comprehensibility of a speech signal, involving the following steps: a) detecting the amplitude, variation over time, and frequency of the speech signal (8); b) generating a masking sound (9) which is dependent on the amplitude, variation over time, and frequency of the speech signal (8) in such a way that an incomprehensible superimposed sound (12) is created by superimposing the masking sound (9) on the speech signal (8), said superimposed sound (12) not being significantly louder than the speech signal, the masking sound (9) being generated in a randomly changing manner, and the speech signal (8) being split into intervals, characterized in that the length of the intervals is randomly modified according to a randomization function. The invention also relates to a separating component for separating a room (2) from a room environment (3) using sensors (4), actuators (5) and a signal processing unit (6) in order to influence sound transmission, characterized in that the separating component (1) includes the following parts: sensors (4) for detecting the speech signals (8) from the room (2); actuators (5) for generating a masking sound that is dependent on the amplitude, variation over time, and frequency of the speech signal (8); the sensors (4) and the actuators (5) being located at a distance from one another so that the speech signal (8) has a certain propagation time until the masking sound (9) is superimposed thereupon in order to take into account propagation times of the speech signal (8) in the separating component (1).
摘要翻译：本发明涉及一种方法，用于降低包括以下步骤的语音信号的可理解性：1）检测的幅度，时间和语音信号（8）的频率; b）产生的声音的Maskierschalls（9），其是依赖于（幅度，时间和语音信号8）的频率，即由语音信号（8）与声音的Maskierschall（9）是一种无法叠加的叠加（12）形成，其中，所述叠加（12）不体积比语音信号，其特征在于，Maskierschalls的生成（9）是受a随机变化，并且其中所述语音信号（8）被划分为间隔，其特征在于根据一随机函数，该时间间隔的长度被随机地改变实质上更高，本发明还涉及一种分离部件，用于从空间区域（3）与传感器（4），致动器分离空间（2）（5）和一个信号处理单元（6）用于影响声音传输，其特征在于上述分隔部件（1）包括以下组件：用于从所述空间检测（2）来的语音信号的传感器（4）（8）; 致动器（5），用于生成Maskierschalls，这是依赖于幅度，时间和语音信号（8）的频率; 其中，所述传感器（4）和所述致动器（5）间隔开，从而使语音信号（8）具有一定的运行时间，直到它与所述Maskierschall（9），用于在分隔构件运行语音信号（8）的时间重叠（1 ）加以考虑。

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