公开(公告)号：US20050192798A1

公开(公告)日：2005-09-01

申请号：US11063664

申请日：2005-02-22

申请人： Janne Vainio ,  Hannu Mikkola ,  Pasi Ojala ,  Jari Makinen

发明人： Janne Vainio ,  Hannu Mikkola ,  Pasi Ojala ,  Jari Makinen

IPC分类号： G10L20060101 ,  G10L19/20 ,  G10L19/00

CPC分类号： G10L19/20

摘要： An encoder comprising an input for inputting frames of an audio signal in a frequency band, at least a first excitation block for performing a first excitation for a speech like audio signal, and a second excitation block for performing a second excitation for a non-speech like audio signal. The encoder further comprises a filter for dividing the frequency band into a plurality of sub bands each having a narrower bandwidth than the frequency band. The encoder also comprises an excitation selection block for selecting one excitation block among the at least first excitation block and the second excitation block for performing the excitation for a frame of the audio signal on the basis of the properties of the audio signal at least at one of the sub bands. The invention also relates to a device, a system, a method and a storage medium for a computer program.

摘要翻译： 一种编码器，包括用于输入频带中的音频信号的帧的输入，用于对诸如音频信号的语音执行第一激励的至少第一激励块，以及用于对非语音进行第二激励的第二激励块 像音频信号。 编码器还包括滤波器，用于将频带划分成多个子频带，每个子带具有比频带窄的带宽。 编码器还包括激励选择块，用于在至少第一激励块和第二激励块之间选择一个激励块，用于根据至少一个音频信号的属性对音频信号的帧执行激励 的子带。 本发明还涉及一种用于计算机程序的装置，系统，方法和存储介质。

公开(公告)号：US07584096B2

公开(公告)日：2009-09-01

申请号：US10804104

申请日：2004-03-19

申请人： Jari Makinen ,  Janne Vainio ,  Hannu Mikkola

发明人： Jari Makinen ,  Janne Vainio ,  Hannu Mikkola

IPC分类号： G10L19/04

CPC分类号： G10L19/012 ,  G10L25/78

摘要： A method of encoding speech in a communications system includes the steps of receiving a speech signal including voice signals and background signals, and detecting voice activity and providing an indicator when no voice activity is detected. The speech signal is encoded to generate a plurality of parameters representing the signal. When the indicator is not present, a first parametric representation of the speech signal is output, including the plurality of parameters. When the indicator is present, at least one of the plurality of parameters is modified and a second parametric representation of the speech signal, including the modified parameter is output.

摘要翻译： 一种在通信系统中编码语音的方法包括以下步骤：接收包括语音信号和背景信号的语音信号，并且在没有检测到语音活动时检测语音活动并提供指示符。 语音信号被编码以产生表示该信号的多个参数。 当指示符不存在时，输出语音信号的第一参数表示，包括多个参数。 当指示符存在时，多个参数中的至少一个被修改，并且输出包括修改参数的语音信号的第二参数表示。

公开(公告)号：US20070239462A1

公开(公告)日：2007-10-11

申请号：US11402220

申请日：2006-04-10

申请人： Jari Makinen ,  Hannu Mikkola ,  Janne Vainio ,  Jani Rotola-Pukkila

发明人： Jari Makinen ,  Hannu Mikkola ,  Janne Vainio ,  Jani Rotola-Pukkila

IPC分类号： G10L19/00

CPC分类号： G10L19/005 ,  G10L19/06 ,  G10L25/93

摘要： A method for use by a speech decoder in handling bad frames received over a communications channel a method in which the effects of bad frames are concealed by replacing the values of the spectral parameters of the bad frames (a bad frame being either a corrupted frame or a lost frame) with values based on an at least partly adaptive mean of recently received good frames, but in case of a corrupted frame (as opposed to a lost frame), using the bad frame itself if the bad frame meets a predetermined criterion. The aim of concealment is to find the most suitable parameters for the bad frame so that subjective quality of the synthesized speech is as high as possible.

摘要翻译： 语音解码器在处理通过通信信道接收的不良帧时使用的方法，其中通过将坏帧的频谱参数的值（坏帧是损坏的帧或被破坏的帧）来隐藏坏帧的影响的方法， 丢失的帧），其值基于最近接收到的良好帧的至少部分自适应均值，但是在损坏的帧（与丢帧相对的情况下）中，如果坏帧满足预定标准，则使用坏帧本身。 隐藏的目的是为坏帧找到最合适的参数，使合成语音的主观质量尽可能高。

公开(公告)号：US20070112562A1

公开(公告)日：2007-05-17

申请号：US11274612

申请日：2005-11-15

申请人： Janne Vainio ,  Hannu Mikkola ,  Jari Makinen

发明人： Janne Vainio ,  Hannu Mikkola ,  Jari Makinen

IPC分类号： G10L11/06

CPC分类号： G11B27/28 ,  G10L25/78 ,  G11B27/105

摘要： A system and method for locating a preferable playback start location after a winding or rewinding action in an audio playing device. In response to an adjustment of the playing location for audio content to a desired playing position, the system determines whether at least one non-speech or silent period of at least a predetermined duration exists within the vicinity of the desired playing position. If at least one such non-speech or silent period exists within the vicinity of the desired playing position, the system adjusts the playing position to fall within one of the at least one non-speech period or silent period.

摘要翻译： 一种用于在音频播放设备中的卷绕或重绕动作之后定位优选回放开始位置的系统和方法。 响应于将音频内容的播放位置调整到期望的播放位置，系统确定在期望的播放位置附近是否存在至少一个预定持续时间的至少一个非语音或静音时段。 如果在期望的播放位置附近存在至少一个这样的非语音或静音时段，则系统将播放位置调整为落入至少一个非语音周期或无声时段之一。

公开(公告)号：US20050102136A1

公开(公告)日：2005-05-12

申请号：US10804104

申请日：2004-03-19

申请人： Jari Makinen ,  Janne Vainio ,  Hannu Mikkola

发明人： Jari Makinen ,  Janne Vainio ,  Hannu Mikkola

IPC分类号： G10L19/012 ,  G10L25/78 ,  G10L11/06

CPC分类号： G10L19/012 ,  G10L25/78

摘要： A method of encoding speech in a communications system includes the steps of receiving a speech signal including voice signals and background signals, and detecting voice activity and providing an indicator when no voice activity is detected. The speech signal is encoded to generate a plurality of parameters representing the signal. When the indicator is not present, a first parametric representation of the speech signal is output, including the plurality of parameters. When the indicator is present, at least one of the plurality of parameters is modified and a second parametric representation of the speech signal, including the modified parameter is output.

摘要翻译： 一种在通信系统中编码语音的方法包括以下步骤：接收包括语音信号和背景信号的语音信号，并且在没有检测到语音活动时检测语音活动并提供指示符。 语音信号被编码以产生表示该信号的多个参数。 当指示符不存在时，输出语音信号的第一参数表示，包括多个参数。 当指示符存在时，多个参数中的至少一个被修改，并且输出包括修改参数的语音信号的第二参数表示。

公开(公告)号：US07610543B2

公开(公告)日：2009-10-27

申请号：US10443652

申请日：2003-05-21

申请人： Hannu Mikkola ,  Janne Vainio

发明人： Hannu Mikkola ,  Janne Vainio

IPC分类号： H03M13/00 ,  H03M13/03

CPC分类号： H03M13/35 ,  G10L19/005

摘要： A method and corresponding codec for (channel) encoding speech or other data bits for transmission via a wireless communication channel, the method providing unequal error protection (UEP) using only a single encoder, and including: a step of determining how many bits to puncture in each of typically two protection classes (CA CB) so as to achieve either a predetermined or iterated desired level of error protection; and a step of identifying which bits to puncture for each class so as to provide relatively strong and uniform protection for all bits in the first class (CA), but protection that decreases in the same manner as the subjective importance decreases from the beginning to the end of the other classes. The method also accounts for so-called soft puncturing by modulators transmitting multiple bits per symbol with weaker protection for some of the bits of each symbol.

摘要翻译： 一种用于通过无线通信信道传输的用于（通道）编码语音或其他数据比特的方法和相应的编解码器，该方法仅使用单个编码器提供不相等的错误保护（UEP），并且包括：确定要刺穿多少比特的步骤 在每个典型的两个保护类别（CA CB）中，以便实现预定或重复的所需级别的错误保护; 以及识别针对每个等级进行穿刺的位以便为第一类（CA）中的所有比特提供相对强而均匀的保护的步骤，但是以与主观重要性相同的方式减少的保护从一开始到 结束其他班。 该方法还考虑了通过对每个符号发送多个比特的调制器进行所谓的软删截，对每个符号的某些比特的保护较弱。

公开(公告)号：US06791966B1

公开(公告)日：2004-09-14

申请号：US09255894

申请日：1999-02-23

申请人： Hannu Mikkola ,  Janne Vainio

发明人： Hannu Mikkola ,  Janne Vainio

IPC分类号： H04Q728

CPC分类号： H04L1/007 ,  H03M13/35 ,  H04L1/0059 ,  H04L1/0061 ,  H04L1/0071 ,  H04L5/06 ,  H04L2001/0098

摘要： A method of transmitting a codeword over a transmission channel using a plurality of radio bursts. The codeword comprises a first sequence of time ordered protected bits and a second sequence of time ordered unprotected bits, and the radio bursts together provide a set of time ordered bit positions. Successive bits of said first sequence are allocated to the radio bursts in a cyclical manner so that adjacent protected bits are allocated to different radio bursts, while successive bits of said second sequence are allocated to remaining bit positions of the radio bursts in the time order of those remaining bit positions. The radio bursts are then transmitted sequentially on different frequency bands.

摘要翻译： 一种使用多个无线电突发通过传输信道发送码字的方法。 码字包括时间有序的受保护位的第一序列和时间有序的未保护位的第二序列，并且无线电突发共同提供一组时间有序位位置。 所述第一序列的连续比特以循环方式分配给无线电脉冲串，使得相邻的被保护比特被分配给不同的无线电突发，而所述第二序列的连续比特按照时间顺序被分配给无线电突发的剩余比特位置 那些剩余的位位置。 然后在不同的频带上顺序地传送无线电突发。

公开(公告)号：US06782367B2

公开(公告)日：2004-08-24

申请号：US09850889

申请日：2001-05-08

申请人： Janne Vainio ,  Hannu Mikkola ,  Jani Rotola-Pukkila

发明人： Janne Vainio ,  Hannu Mikkola ,  Jani Rotola-Pukkila

IPC分类号： G10L2104

CPC分类号： G10L19/18

摘要： A speech encoding or decoding arrangement (711, 721, 811, 821) comprises a speech signal input and a multiple mode speech encoder (402) or decoder (411) for encoding or decoding speech signals coupled to the speech signal input selectabily with a first encoding or decoding mode associated with a first bandwidth or a second encoding or decoding mode associated with a second bandwidth. It comprises a soft bandwidth switching block (401, 412, 500) with an input (IN) and an output (OUT). In an encoding arrangement the input (IN) is coupled to the speech signal input and the output (OUT) is coupled to the multiple mode speech encoder (402). In a decoding arrangement the input (IN) is coupled to the multiple mode speech decoder (411) and the output (OUT) is the output of the decoding arrangement. The soft bandwidth switching block (401, 412, 500) is arranged to gradually change the bandwidth of a speech signal coupled to the multiple mode speech encoder or decoder as a response to an instruction for changing speech signal bandwidth (421).

摘要翻译： 语音编码或解码装置（711,721,811,821）包括语音信号输入和多模式语音编码器（402）或解码器（411），用于对与语音信号输入耦合的语音信号进行编码或解码以选择性地与第一 与第一带宽相关联的编码或解码模式或与第二带宽相关联的第二编码或解码模式。 它包括具有输入（IN）和输出（OUT）的软带宽切换块（401,412,500）。 在编码装置中，输入（IN）耦合到语音信号输入，输出（OUT）耦合到多模式语音编码器（402）。 在解码装置中，输入（IN）耦合到多模式语音解码器（411），输出（OUT）是解码装置的输出。 软带宽切换块（401,412,500）被布置为作为对用于改变语音信号带宽的指令的响应逐渐改变耦合到多模式语音编码器或解码器的语音信号的带宽（421）。

公开(公告)号：US08438019B2

公开(公告)日：2013-05-07

申请号：US11063664

申请日：2005-02-22

申请人： Janne Vainio ,  Hannu Mikkola ,  Pasi Ojala ,  Jari Mäkinen

发明人： Janne Vainio ,  Hannu Mikkola ,  Pasi Ojala ,  Jari Mäkinen

IPC分类号： G10L19/12 ,  G10L21/00

CPC分类号： G10L19/20

摘要： An encoder comprising an input for inputting frames of an audio signal in a frequency band, at least a first excitation block for performing a first excitation for a speech like audio signal, and a second excitation block for performing a second excitation for a non-speech like audio signal. The encoder further comprises a filter for dividing the frequency band into a plurality of sub bands each having a narrower bandwidth than the frequency band. The encoder also comprises an excitation selection block for selecting one excitation block among the at least first excitation block and the second excitation block for performing the excitation for a frame of the audio signal on the basis of the properties of the audio signal at least at one of the sub bands. The invention also relates to a device, a system, a method and a storage medium for a computer program.

摘要翻译： 一种编码器，包括用于输入频带中的音频信号的帧的输入，用于对诸如音频信号的语音执行第一激励的至少第一激励块，以及用于对非语音进行第二激励的第二激励块 像音频信号。 编码器还包括滤波器，用于将频带划分成多个子频带，每个子带具有比频带窄的带宽。 编码器还包括激励选择块，用于在至少第一激励块和第二激励块之间选择一个激励块，用于根据至少一个音频信号的属性对音频信号的帧执行激励 的子带。 本发明还涉及一种用于计算机程序的装置，系统，方法和存储介质。

公开(公告)号：US07315814B2

公开(公告)日：2008-01-01

申请号：US10311657

申请日：2001-06-30

申请人： Janne Vainio ,  Hannu Mikkola ,  Jani Rotola-Pukkila

发明人： Janne Vainio ,  Hannu Mikkola ,  Jani Rotola-Pukkila

IPC分类号： G10L19/00

CPC分类号： G10L19/18 ,  H04L1/0014 ,  H04L1/0025

摘要： A wireless telecommunications system comprises a mobile station (MS) and a network. The mobile station has a multi-rate speech encoder which produces an encoded speech signal which is transmitted to the network. The network has a multi-rate speech decoder which decodes the encoded speech signal to produce a decoded speech signal. The network also comprises a signal analyser which measures speech characteristics of the decoded speech signal to produce speech characteristics information and an up-link mode control unit which receives the speech characteristics information and produces a mode command. The mode command is transmitted by the network to the mobile station where it is used to control the speech encoding bit rate of the multi-rate speech encoder.

摘要翻译： 无线电信系统包括移动台（MS）和网络。 移动台具有多速率语音编码器，其产生被发送到网络的编码语音信号。 网络具有多速率语音解码器，其对编码的语音信号进行解码以产生解码的语音信号。 网络还包括测量解码语音信号的语音特性以产生语音特征信息的信号分析器，以及接收语音特征信息并产生模式命令的上行链路模式控制单元。 该模式命令由网络发送到移动站，在该移动站处，用于控制多速率语音编码器的语音编码比特率。