公开(公告)号：US06763330B2

公开(公告)日：2004-07-13

申请号：US10082412

申请日：2002-02-25

Applicant: Daniel Lin

Inventor： Daniel Lin

IPC: G10L1912

CPC classification number: G10L19/12 ,  G10L2019/0005 ,  G10L2019/0007

Abstract: A receiver is used in decoding a received encoded signal. The received encoded speech signal is encoded using excitation linear prediction. The receiver receives the encoded speech signal. The encoded speech signal comprises a code, a pitch lag and a line spectral pair index. An innovation sequence is produced by selecting a code from each of a plurality of codebooks based on the code index. A line spectral pair quantization of a speech signal is determined using the line spectral pair index. A pitch lag is determined using the pitch lag index. A speech signal is reconstructed using the produced innovation sequence, the determined line spectral pair quantization and pitch lag.

Abstract translation: 接收机用于对接收到的编码信号进行解码。 使用激励线性预测对接收到的编码语音信号进行编码。 接收器接收编码语音信号。 编码语音信号包括码，音调滞后和线谱对索引。 通过基于代码索引从多个码本中的每一个选择代码来产生创新序列。 使用线谱对索引来确定语音信号的线谱对量化。 使用音调滞后指数确定音调滞后。 使用所产生的创新序列，确定的线谱对量化和音调滞后来重构语音信号。

公开(公告)号：US5235670A

公开(公告)日：1993-08-10

申请号：US592330

申请日：1990-10-03

Applicant: Daniel Lin ,  Brian M. McCarthy

Inventor： Daniel Lin ,  Brian M. McCarthy

IPC: G10L19/06 ,  G10L19/08 ,  G10L19/10

CPC classification number: G10L19/06 ,  G10L19/09 ,  G10L19/10

Abstract: The generation of multipulse excitation codes by digitizing an original speech, partitioning the digitized signal into a number of samples, pre-emphasizing the samples, producing linear predictive reflection coefficients from said samples, quantizing these reflection coefficients, converting the quantized reflection coefficients to spectral coefficients and subjecting the spectral coefficients to pitch analysis to obtain a spectral residual signal.

Abstract translation: 通过数字化原始语音来产生多脉冲激励码，将数字化信号划分成多个样本，预先强调样本，从所述样本产生线性预测反射系数，量化这些反射系数，将量化的反射系数转换成频谱系数 并对频谱系数进行音调分析以获得频谱残差信号。