公开(公告)号：US6163766A

公开(公告)日：2000-12-19

申请号：US134320

申请日：1998-08-14

申请人： John Kleider ,  William Michael Campbell ,  Cynthia Ann Jaskie

发明人： John Kleider ,  William Michael Campbell ,  Cynthia Ann Jaskie

IPC分类号： G10L21/00 ,  H04L1/12

CPC分类号： H04L1/0003 ,  H04L1/0026

摘要： A system and method for determining operating parameters to control a communication rate for an adaptive rate communication system includes a transmitter (101) to transmit a signal (135) through a channel (142) to a receiver (103). The receiver (103) determines operating parameters based on, among other things, an effective bit rate and a percentage of speech in the signal. The receiver conveys the operating parameters to the transmitter for use in subsequent communications from the transmitter (101) to the receiver (103).

摘要翻译： 用于确定用于自适应速率通信系统的通信速率的操作参数的系统和方法包括：通过信道（142）将信号（135）发送到接收机（103）的发射机（101）。 接收机（103）基于信号中的有效比特率和语音百分比来确定操作参数。 所述接收机将所述操作参数传送到所述发射机，以用于从所述发射机（101）到所述接收机（103）的后续通信。

公开(公告)号：US5794186A

公开(公告)日：1998-08-11

申请号：US713620

申请日：1996-09-13

申请人： Chad Scott Bergstrom ,  Bruce Alan Fette ,  Cynthia Ann Jaskie ,  Clifford Wood ,  Sean Sungsoo You

发明人： Chad Scott Bergstrom ,  Bruce Alan Fette ,  Cynthia Ann Jaskie ,  Clifford Wood ,  Sean Sungsoo You

IPC分类号： G10L19/00 ,  G10L19/02 ,  G10L19/10 ,  G10L19/12 ,  G10L9/00 ,  G10L3/02

CPC分类号： G10L19/125 ,  G10L19/10 ,  G10L19/02

摘要： A vocoder device and corresponding method characterizes and reconstructs speech excitation. An excitation analysis portion performs a cyclic excitation transformation process on a target excitation segment by rotating a peak amplitude to a beginning buffer location. The excitation phase representation is dealiased using multiple dealiasing passes based on the phase slope variance. Both primary and secondary excitation components are characterized, where the secondary excitation is characterized based on a computation of the error between the characterized primary excitation and the original excitation. Alternatively, an excitation pulse compression filter is applied to the target, resulting in a symmetric target. The symmetric target is characterized by normalizing half the symmetric target. The synthesis portion performs reconstruction and synthesis of the characterized excitation based on the characterization method employed by the analysis portion.

摘要翻译： 声码器装置和相应的方法表征和重构语音激励。 激励分析部通过将峰值振幅旋转到起始缓冲器位置，对目标激励段进行循环激励变换处理。 基于相位斜率方差，使用多个去饱和通道来激励相位表示是去混合的。 特征在于主激励分量和次励磁分量，其中基于所表征的主激励和原始激励之间的误差的计算来表征二次激励。 或者，激励脉冲压缩滤波器被施加到目标，导致对称的目标。 对称目标的特征在于将对称目标的一半归一化。 合成部分基于分析部分采用的表征方法进行表征激励的重构和合成。

公开(公告)号：US5727125A

公开(公告)日：1998-03-10

申请号：US349639

申请日：1994-12-05

申请人： Chad Scott Bergstrom ,  Bruce Alan Fette ,  Cynthia Ann Jaskie ,  Clifford Wood ,  Sean Sungsoo You

发明人： Chad Scott Bergstrom ,  Bruce Alan Fette ,  Cynthia Ann Jaskie ,  Clifford Wood ,  Sean Sungsoo You

IPC分类号： G10L19/00 ,  G10L19/12 ,  G10L5/02

CPC分类号： G10L19/125 ,  G10L25/06

摘要： A speech vocoder device and corresponding method synthesizes speech excitation waveforms. The method entails reconstructing (216) an excitation target from decoded speech data, creating (220) aligned excitation segments by normalizing (296), correlating (298), and aligning (300) a source segment and a target segment, reconstructing normalized intervening segments by ensemble interpolating (318) between the source segment and the target segment, denormalizing (320) the normalized intervening segments, and reconstructing (322) an excitation waveform from the denormalized intervening segments, the source segment, and the target segment.

摘要翻译： 语音声码器装置和相应的方法合成语音激励波形。 该方法需要从解码的语音数据重建（216）激励目标，通过归一化（296），相关（298）和对准（300）源段和目标段来创建（220）对准的激励段，重建标准化的间隔段 通过在源段和目标段之间进行整体插值（318），对归一化的间隔段进行非归一化（320），并且从非归一化的中间段，源段和目标段重构（322）激励波形。

公开(公告)号：US06301265B1

公开(公告)日：2001-10-09

申请号：US09134782

申请日：1998-08-14

申请人： John Kleider ,  Bruce Alan Fette ,  William Michael Campbell ,  Cynthia Ann Jaskie

发明人： John Kleider ,  Bruce Alan Fette ,  William Michael Campbell ,  Cynthia Ann Jaskie

IPC分类号： H04J316

CPC分类号： H04L1/0009 ,  G10L19/002 ,  G10L19/005 ,  H04L1/0014 ,  H04L69/40

摘要： A system and method for determining operating parameters to control a communication rate for an adaptive rate communication system includes a transmitter (101) to transmit a signal (135) through a network (142) to a receiver (103). The receiver (103) determines operating parameters based on, among other things, packet information from a received signal (e.g., packet). The receiver conveys the operating parameters to the transmitter for use in subsequent communications from the transmitter (101) to the receiver (103).

摘要翻译： 用于确定用于自适应速率通信系统的通信速率的操作参数的系统和方法包括：通过网络（142）向接收机（103）发送信号（135）的发射机（101）。 接收器（103）基于来自接收信号（例如，分组）的分组信息来确定操作参数。 所述接收机将所述操作参数传送到所述发射机，以用于从所述发射机（101）到所述接收机（103）的后续通信。

公开(公告)号：US06199040B1

公开(公告)日：2001-03-06

申请号：US09122610

申请日：1998-07-27

申请人： Bruce Alan Fette ,  Cynthia Ann Jaskie

发明人： Bruce Alan Fette ,  Cynthia Ann Jaskie

IPC分类号： G10L1900

CPC分类号： G10L19/00 ,  G10L2019/0005 ,  G10L2019/0007

摘要： System efficiently communicates a perceptually encoded speech spectrum signal from a transmitter to a receiver. The transmitter includes a speech analyzer which accepts a speech signal input and generates a parameterized speech signal. The transmitter also includes a vector quantizer for generating the perceptually encoded speech spectrum signal from the parameterized speech signal. The receiver decodes the perceptually encoded speech spectrum signal to produce decoded spectral parameters to further produce a synthetic speech output. The vector quantizer performs a method for partitioning a vector quantizer (VQ) codebook to produce perceptually organized sub-codebooks. The vector quantizer performs a second method for quantizing a vector based on the perceptually organized sub-codebooks. The second method identifies a vector, from one of the perceptually organized sub-codebooks, to perceptually model the speech signal input.

摘要翻译： 系统有效地将感知编码的语音频谱信号从发射机传送到接收机。 发射机包括接收语音信号输入并生成参数化语音信号的语音分析器。 发射机还包括用于从参数化语音信号产生感知编码语音频谱信号的矢量量化器。 接收机对感知编码的语音频谱信号进行解码以产生解码的频谱参数，以进一步产生合成语音输出。 矢量量化器执行用于分割矢量量化器（VQ）码本以产生感知组织的子码本的方法。 矢量量化器基于感知组织的子码本执行用于量化矢量的第二种方法。 第二种方法从感知组织的子码本之一中识别出一种矢量，以感知地对语音信号输入进行建模。