公开(公告)号：AU2004317678C1

公开(公告)日：2009-09-24

申请号：AU2004317678

申请日：2004-03-12

Applicant: NOKIA TECHNOLOGIES OY

Inventor： OJALA PASI ,  LAKANIEMI ARI

IPC: G10L19/008

Abstract: The invention relates to a method of synthesizing a mono audio signal 3 based on an available encoded multichannel audio signal 2. The encoded multichannel audio signal 2 is assumed to comprise at least for a part of an audio frequency band separate parameter values for each channel of the multichannel audio signal. In order to reduce the processing load in synthesizing the mono audio signal 2, it is proposed that the parameter values of the multiple channels are combined at least for a part of an audio frequency band in the parameter domain. The combined parameter values are then used for synthesizing the mono audio signal. The invention relates equally to a corresponding audio decoder, to a corresponding coding system and to a corresponding software program product.

公开(公告)号：AU2007301518B2

公开(公告)日：2012-07-12

申请号：AU2007301518

申请日：2007-09-26

Applicant: NOKIA TECHNOLOGIES OY

Inventor： LAKANIEMI ARI ,  OJALA PASI

IPC: G10L19/14 ,  H04L1/00

Abstract: A system and method for efficiently implementing redundancy management in speech coding applications. According to various embodiments of the present invention, a sending device selects a redundant transmission level that is suitable for a current transmission channel condition while, at the same time, selecting the most suitable bit rate from the available codec mode set. With embodiments of the present invention, the redundant transmission level that is used is always optimal with regard to the selected codec modes, and no re-negotiation of the codec is needed.

公开(公告)号：AU6403298A

公开(公告)日：1998-11-27

申请号：AU6403298

申请日：1998-03-13

Applicant: NOKIA TECHNOLOGIES OY

Inventor： LAKANIEMI ARI ,  VAINIO JANNE ,  OJALA PASI ,  HAAVISTO PETRI

IPC: G10L19/08 ,  H03M7/30 ,  H03M7/36 ,  G10L9/12

公开(公告)号：EP2446642A4

公开(公告)日：2015-11-18

申请号：EP09846424

申请日：2009-06-23

Applicant: NOKIA TECHNOLOGIES OY

Inventor： ERONEN ANTTI ,  OJALA PASI

IPC: H04S7/00 ,  H04M3/56 ,  H04R1/40 ,  H04R3/00 ,  H04R5/02 ,  H04R27/00 ,  H04S3/00

CPC classification number: H04S7/302 ,  H04M3/568 ,  H04R1/406 ,  H04R3/005 ,  H04R5/027 ,  H04R27/00 ,  H04R2227/003 ,  H04S3/008 ,  H04S2420/03

Abstract: An apparatus (300) comprises—one or more inputs (IN1, IN2) to receive two or more different audio signals (S1, S2),—an input (IN—VDI1) to receive a direction signal (SVDI1) and—a signal processing unit (100) arranged to generate a processed audio signal (SAUDIOI) from said two or more different audio signals (S1, S2), said processed audio signal (SAUDIO1) comprising an enhanced audio signal (SENC1) corresponding to a sound (SND2) originating from a location (x2y2) indicated by said direction signal (SVDI1).

Abstract translation: 一种装置（300）包括 - 一个或多个输入（IN1，IN2），以接收两个或多个不同的音频信号（S1，S2）， - 用于接收方向信号（SVDI1）的输入（IN-VDI1）和 - 处理单元（100），被配置为从所述两个或多个不同的音频信号（S1，S2）生成经处理的音频信号（SAUDIOI），所述处理的音频信号（SAUDIO1）包括对应于声音的增强音频信号（SENC1）（SND2） ）来自由所述方向信号（SVDI1）指示的位置（x2y2）。