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    • 2. 发明申请
    • Method and device for controlling the bass reproduction of audio signals in electroacoustic transducers
    • 用于控制电声换能器中音频信号的低音再现的方法和装置
    • US20050002534A1
    • 2005-01-06
    • US10490259
    • 2001-09-21
    • Roland AubauerStefano Klinke
    • Roland AubauerStefano Klinke
    • H04R3/04H04R5/00
    • H04R3/04
    • The aim of the invention is to control the bass reproduction of audio signals in electroacoustic transducers based on the psychoacoustic principle denoted by the term “virtual pitch” or “residual hearing (hearing of missing fundamental)”, in such a way that the perception of the virtual bass reproduction of the audio signals is improved in relation to prior art. To this end, the reproduction of the low pitched frequencies or basses released in the electroacoustic transducer is controlled by the amplification of the harmonic waves already contained in the audio signals, in the form of a simulation, in such a way that the listener experiences or perceives an improved bass reproduction. The control or simulation can thus be carried out in both a digital manner, by means of a program module in a digital signal processor of an electronic appliance for outputting and/or reproducing audio signals using the electroacoustic transducer, and in an analog manner, by means of a hardware circuit between a digital analog transducer and a final amplifier of the electronic appliance for outputting and/or reproducing audio signals using the electroacoustic transducer.
    • 本发明的目的是基于由虚拟音调或“剩余听觉(缺少基本听觉)”表示的心理声学原理来控制电声换能器中的音频信号的低音再现,使得感知 与现有技术相比,音频信号的虚拟低音再现得到改善。 为此,在电声换能器中释放的低音调频率或低音的再现通过以模拟形式已经包含在音频信号中的谐波的放大来控制,使得听者经历或 感觉到改进的低音再现。 因此,控制或仿真可以通过电子设备的数字信号处理器中的程序模块以数字方式进行,用于使用电声换能器输出和/或再现音频信号,并且以模拟方式通过 在数字模拟换能器和电子设备的最终放大器之间的硬件电路的装置,用于使用电声换能器输出和/或再现音频信号。
    • 5. 发明申请
    • Method and device for the interference elimination of a redundant acoustic signal
    • 用于干扰消除冗余声信号的方法和装置
    • US20050036629A1
    • 2005-02-17
    • US10493283
    • 2002-10-01
    • Roland AubauerVolkmar HamacherStefano Klinke
    • Roland AubauerVolkmar HamacherStefano Klinke
    • H04R3/00H04R25/00A61F11/06G10K11/16H03B29/00H04B15/00
    • H04R25/453H04R3/02H04R25/505H04R2430/03
    • A method and device are provided for the interference elimination of a redundant acoustic input signal of an acoustic reproducing device, such as a mobile phone or a hearing aid, according to which the interference is concentrated in a partial frequency range of a total frequency range of the input signal. The present invention seeks to improve the sound quality of an acoustic output signal produced. The inventive method includes the following subsequent steps: a) removing the partial frequency range of the input signal, in which the interference is concentrated, b) dividing up the intensity of the frequency range of the input signal that was allowed to pass in the first step into an input signal portion to be maintained and an input signal portion to be further processed, c) synthesizing the partial frequency range of the input signal removed in step a) in accordance with the input signal portion to be further processed, and d) combining the input signal portion from step b) to be maintained and the synthesized input signal portion from step c), thereby producing an output signal that is interference-eliminated as compared to the input signal.
    • 提供了一种方法和装置,用于干扰消除诸如移动电话或助听器之类的声学再现装置的冗余声输入信号,根据该方法和装置,干扰集中在总频率范围的部分频率范围 输入信号。 本发明寻求提高所产生的声输出信号的声音质量。 本发明的方法包括以下后续步骤:a)去除干扰集中的输入信号的部分频率范围,b)将在第一个中允许通过的输入信号的频率范围的强度除以 步进到待维护的输入信号部分和要进一步处理的输入信号部分,c)根据要进一步处理的输入信号部分合成在步骤a)中去除的输入信号的部分频率范围,以及d) 组合来自步骤b)的输入信号部分和来自步骤c)的合成输入信号部分,从而产生与输入信号相比被干扰消除的输出信号。
    • 6. 发明申请
    • Communication terminal with a parameterised bandwidth expansion, and method for the bandwidth expansion thereof
    • 具有参数化带宽扩展的通信终端及其带宽扩展方法
    • US20060111150A1
    • 2006-05-25
    • US10534327
    • 2003-10-30
    • Stefano KlinkeFrank Lorenz
    • Stefano KlinkeFrank Lorenz
    • H04B1/38
    • G10L21/038
    • The disclosure relates to a communication terminal having a bandwidth expansion device for expanding the bandwidth of a narrowband voice signal, on a low-frequency and/or high-frequency side, by synthesizing at least one frequency band on the basis of the narrowband voice signal. A qualitatively satisfactory bandwidth expansion is thus performed using a plurality of net bit rates. The bandwidth expansion device is further connected to a memory containing a lookup table comprising at least one parameter value for the bandwidth expansion, for at least two net bit rates of the narrowband voice signal. A method for expanding a bandwidth of a narrowband voice signal having at least two net bit rates in a communication terminal is also disclosed herein.
    • 本公开涉及具有带宽扩展装置的通信终端,用于通过基于窄带语音信号合成至少一个频带来在低频和/或高频侧扩展窄带语音信号的带宽 。 因此,使用多个净比特率执行质量上令人满意的带宽扩展。 带宽扩展设备进一步连接到包含针对带宽扩展的至少一个参数值的查找表的存储器,用于窄带语音信号的至少两个净比特率。 本文还公开了一种在通信终端中扩展具有至少两个净比特率的窄带语音信号的带宽的方法。
    • 7. 发明申请
    • Communication terminal with bandwidth widening expansion and echo compensation
    • 通信终端带宽扩大和回波补偿
    • US20060067518A1
    • 2006-03-30
    • US10527763
    • 2003-08-20
    • Stefano KlinkeFrank Lorenz
    • Stefano KlinkeFrank Lorenz
    • H04M9/08
    • H04M9/082G10L21/02
    • A communication terminal is provided having a signal reception path which has a bandwidth widening device for artificially widening the bandwidth of a received signal in the communication terminal, a digital/analog converter and a loudspeaker, and includes a signal transmission path, which has a microphone, a transmission path low-pass filter and an analog/digital converter, in which case an echo compensation device is provided between one output of the bandwidth widening device and a connecting point of the signal transmission path, beyond the analog/digital converter with respect to the microphone, and further provides a method for artificially widening the bandwidth of a received signal in a communication terminal.
    • 提供一种具有信号接收路径的通信终端,该信号接收路径具有用于人为扩大通信终端中的接收信号的带宽的带宽扩大装置,数字/模拟转换器和扬声器,并且包括具有麦克风的信号传输路径 传输路径低通滤波器和模拟/数字转换器,在这种情况下,回波补偿装置设置在带宽扩大装置的一个输出端和信号传输路径的连接点之间,超出模拟/数字转换器,相对于 并且还提供了一种用于在通信终端中人为地加宽接收信号的带宽的方法。