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    SUPPORTING A CONCATENATIVE TEXT-TO-SPEECH SYNTHESIS
    1.
    发明公开
    SUPPORTING A CONCATENATIVE TEXT-TO-SPEECH SYNTHESIS 审中-公开
    支持拼接TEXT-TO-语音合成

    公开(公告)号：EP1902441A1

    公开(公告)日：2008-03-26

    申请号：EP06780002.9

    申请日：2006-06-22

    申请人： Nokia Corporation

    发明人： NURMINEN, Jani ,  HIMANEN, Sakari ,  RÄMÖ, Anssi ,  VAINIO, Janne

    IPC分类号： G10L13/06

    CPC分类号： G10L13/06

    摘要： The invention relates to a support of a concatenative TTS synthesis. In order to generate a speech database as a basis for the TTS synthesis, first, a speech processing including a segmental parametric speech encoding of speech data based on a parametric modeling of speech is performed, which results in compressed parameterized speech segments. Then, the compressed parameterized speech segments are assembled in a speech database. In order to synthesize output speech, compressed parameterized speech segments are selected from the speech database based on an available text and decompressed to regain parameterized speech segments. The parameterized speech segments are then concatenated in a parameter domain. The output speech is synthesized based on these concatenated parametric speech segments .

    APPARATUS FOR BANDWIDTH EXPANSION OF A SPEECH SIGNAL
    4.
    发明公开
    APPARATUS FOR BANDWIDTH EXPANSION OF A SPEECH SIGNAL 有权
    设备用于扩展音频信号的带宽

    公开(公告)号：EP1328928A2

    公开(公告)日：2003-07-23

    申请号：EP01974612.2

    申请日：2001-10-17

    申请人： Nokia Corporation

    发明人： OJALA, Pasi ,  ROTOLA-PUKKILA, Jani ,  VAINIO, Janne ,  MIKKOLA, Hannu

    IPC分类号： G10L21/02

    CPC分类号： G10L19/012 ,  G10L21/0364 ,  G10L25/78

    摘要： A speech coding method and device for encoding and decoding an input signal, wherein the higher frequency components of the synthesized speech are achieved by high-pass filtering and coloring an artificial signal. The processed artificial signal is scaled by a first scaling factor during the active speech periods of the input signal and a second scaling factor during the non-active speech periods, wherein the first scaling factor is characteristic of the higher frequency band of the input signal and the second scaling factor is characteristic of the lower frequency band of the input signal. In particular, the second scaling factor is estimated based on the lower frequency components of the synthesized speech and the coloring of the artificial signal is based on the linear predictive coding coefficients characteristic of the lower frequency of the input signal.

    WIDEBAND SPEECH CODEC USING DIFFERENT SAMPLING RATES
    5.
    发明授权
    WIDEBAND SPEECH CODEC USING DIFFERENT SAMPLING RATES 有权
    宽带语音编解码器在多个采样率

    公开(公告)号：EP1273005B1

    公开(公告)日：2008-07-23

    申请号：EP01953037.7

    申请日：2001-02-02

    申请人： Nokia Corporation

    发明人： ROTOLA-PUKKILA, Jani ,  MIKKOLA, Hannu ,  VAINIO, Janne

    IPC分类号： G10L19/02 ,  G10L19/12 ,  G10L21/02

    CPC分类号： G10L21/038 ,  G10L19/0208 ,  G10L19/12

    摘要： Wideband (WB) system includes a linear predictive (LP) analysis module (11) responsive to the n frame of the wideband speech signal, for providing LP analysis filter characteristics; a WB LP analysis filter (12a), also responsive to the n frame of the WB speech signal, for providing a filtered WB speech input; a band-splitting module (14), responsive to the filtered WB speech input for the n frame, for splitting the filtered WB speech input into k bands, the band-splitting module for providing a lower band (LB) target signal x(n); an excitation search module (16), responsive to the LB target signal x(n), for providing an LB excitation exc(n); a band-combining module (17), responsive to exc(n), for providing a WB excitation excw(n); and a WB LP synthesis filter (18), responsive to the LP analysis filter characteristics and to excw(n), for providing WB synthesized speech.

    METHOD AND SYSTEM FOR ALLOCATING CONVOLUTIONAL ENCODED BITS INTO SYMBOLS BEFORE MODULATION
    6.
    发明授权
    METHOD AND SYSTEM FOR ALLOCATING CONVOLUTIONAL ENCODED BITS INTO SYMBOLS BEFORE MODULATION 有权
    用于分配的折叠方法和设备编码比特符号ON及其调制

    公开(公告)号：EP1352478B1

    公开(公告)日：2006-11-15

    申请号：EP02711120.2

    申请日：2002-01-04

    申请人： Nokia Corporation

    发明人： MIKKOLA, Hannu ,  VAINIO, Janne ,  ROTOLA-PUKKILA, Jani

    IPC分类号： H03M13/25 ,  H04L27/18 ,  H03M13/23 ,  H03M13/00

    CPC分类号： H04L1/0068 ,  H03M13/23 ,  H03M13/27 ,  H03M13/35 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/0083

    摘要： A method and corresponding apparatus for encoding a sequence of bits for transmission as symbols, some of the bit positions of the symbols having a higher bit error rate than other bit positions. The method includes: a step (31, 32, 41, 42) of providing a plurality of sequences of bits using a convolutional encoder (31, 41), in response to a sequence of input bits, each sequence of bits being defined by a predetermined generator polynomial having a predetermined level of sensitivity to puncturing; and a step (33, 44) of mapping the bits of each sequence of bits to symbol positions based on the level of sensitivity of the generator polynomial defining the sequence of bits. With interleaving, the mapping of bits of each sequence of bits to symbol positions (33, 44) can precede a symbol interleaving step (34), or it can follow a bit interleaving step (43).

    METHOD AND ARRANGEMENT FOR CHANGING SOURCE SIGNAL BANDWIDTH IN A TELECOMMUNICATION CONNECTION WITH MULTIPLE BANDWIDTH CAPABILITY
    8.
    发明授权
    METHOD AND ARRANGEMENT FOR CHANGING SOURCE SIGNAL BANDWIDTH IN A TELECOMMUNICATION CONNECTION WITH MULTIPLE BANDWIDTH CAPABILITY 有权
    方法和系统更改源带宽与多个带宽能力的电信连接

    公开(公告)号：EP1290679B1

    公开(公告)日：2006-04-05

    申请号：EP01931767.6

    申请日：2001-05-08

    申请人： Nokia Corporation

    发明人： VAINIO, Janne ,  MIKKOLA, Hannu ,  ROTOLA-PUKKILA, Jani

    IPC分类号： G10L19/14

    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 selectably 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).