METHODS AND APPARATUSES FOR ENCODING AND DECODING OBJECT-BASED AUDIO SIGNALS
    61.
    发明公开
    METHODS AND APPARATUSES FOR ENCODING AND DECODING OBJECT-BASED AUDIO SIGNALS 审中-公开
    用于编码和解码基于对象的音频信号的方法和设备

    公开(公告)号:EP2071564A1

    公开(公告)日:2009-06-17

    申请号:EP07833116.2

    申请日:2007-10-01

    IPC分类号: G10L19/00

    摘要: Provided are an audio encoding method and apparatus and an audio decoding method and apparatus in which audio signals can be encoded or decoded so that sound images can be localized at any desired position for each object audio signal. The audio decoding method includes extracting a downmix signal and object-based side information from an audio signal; generating channel-based side information based on object-based side information and control information for rendering the downmix signal; processing the downmix signal using a decorrelated channel signal; and generating a multi-channel audio signal using the processed downmix signal and the channel-based side information.

    摘要翻译: 提供了一种音频编码方法和装置以及音频解码方法和装置,其中音频信号可以被编码或解码,使得声音图像可以被定位在每个对象音频信号的任何期望的位置。 该音频解码方法包括从输入音频信号提取缩混信号和基于对象的辅助信息; 基于输入控制数据生成呈现信息; 以及基于渲染信息和基于对象的辅助信息生成空间信息。

    METHOD AND APPARATUS FOR PROCESSING AN AUDIO SIGNAL
    63.
    发明公开
    METHOD AND APPARATUS FOR PROCESSING AN AUDIO SIGNAL 有权
    用于处理音频信号的方法和设备

    公开(公告)号:EP1987596A1

    公开(公告)日:2008-11-05

    申请号:EP07709016.5

    申请日:2007-02-16

    IPC分类号: H03M7/30

    摘要: A method for processing an audio signal, comprising the steps of extracting an ancillary signal for generating the audio signal and an extension signal included in the ancillary signal from a received bit stream, reading length information of the extension signal from an extension area of the ancillary signal, and generating the audio signal using the ancillary signal. Accordingly, in case of processing the audio signal by the present invention, it is able to reduce a corresponding load of operation to enable efficient processing and enhance a sound quality.

    摘要翻译: 一种用于处理音频信号的方法,包括以下步骤:从接收的比特流中提取用于生成音频信号的辅助信号和包括在辅助信号中的扩展信号;从辅助的扩展区域读取扩展信号的长度信息 信号,并使用辅助信号生成音频信号。 因此,在通过本发明处理音频信号的情况下,能够减少相应的操作负载,以实现有效的处理并提高音质。

    METHOD AND APPARATUS FOR PROCESSING AN AUDIO SIGNAL
    64.
    发明公开
    METHOD AND APPARATUS FOR PROCESSING AN AUDIO SIGNAL 有权
    用于处理音频信号的方法和设备

    公开(公告)号:EP1987594A1

    公开(公告)日:2008-11-05

    申请号:EP07709014.0

    申请日:2007-02-16

    IPC分类号: H03M7/30

    摘要: A method for processing an audio signal, comprising the steps of extracting an ancillary signal for generating the audio signal and an extension signal included in the ancillary signal from a received bit stream, checking a level of the bit stream, selectively decoding the extension signal according to the level of the bit stream, and generating the audio signal using the ancillary signal. Accordingly, in case of processing the audio signal by the present invention, it is able to reduce a corresponding load of operation to enable efficient processing and enhance a sound quality.

    摘要翻译: 一种用于处理音频信号的方法,包括以下步骤:从接收到的比特流中提取用于生成音频信号的辅助信号和包括在辅助信号中的扩展信号;检查比特流的电平;根据选择性地解码扩展信号 到比特流的电平,并且使用辅助信号生成音频信号。 因此,在通过本发明处理音频信号的情况下,能够减少相应的操作负载,以实现有效的处理并提高音质。

    METHOD AND APPARATUS FOR PROCESSING A MEDIA SIGNAL
    65.
    发明公开
    METHOD AND APPARATUS FOR PROCESSING A MEDIA SIGNAL 有权
    方法和设备用于处理媒体信号

    公开(公告)号:EP1974348A1

    公开(公告)日:2008-10-01

    申请号:EP07708534.8

    申请日:2007-01-19

    IPC分类号: G10L19/00

    摘要: An apparatus for processing a media signal and method thereof are disclosed, by which the media signal can be converted to a surround signal by using spatial information of the media signal. The present invention provides a method of processing a signal, the method comprising of extracting spatial information and a downmix signal from a bitstream; and generating rendering information by using the spatial information and filter information having a surround effect, wherein the rendering information comprises first rendering information applied to one channel of the downmix signal extracted from the bitstream and then transmitted on the same channel and second rendering information applied to the channel and then transmitted on another channel.

    APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL AND METHOD THEREOF
    69.
    发明公开
    APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL AND METHOD THEREOF 审中-公开
    设备编码和解码音频信号及其方法

    公开(公告)号:EP1949759A1

    公开(公告)日:2008-07-30

    申请号:EP06843796.1

    申请日:2006-08-30

    IPC分类号: H04S3/00 G10L19/00 G10L19/02

    摘要: Spatial information associated with an audio signal is encoded into a bitstream, which can be transmitted to a decoder or recorded to a storage media. The bitstream can include different syntax related to time, frequency and spatial domains. In some embodiments, the bitstream includes one or more data structures (e.g., frames) that contain ordered sets of slots for which parameters can be applied. The data structures can be fixed or variable. A data structure type indicator can be inserted in the bitstream to enable a decoder to determine the data structure type and to invoke an appropriate decoding process. The data structure can include position information that can be used by a decoder to identify the correct slot for which a given parameter set is applied. The slot position information can be encoded with either a fixed number of bits or a variable number of bits based on the data structure type as indicated by the data structure type indicator. For variable data structure types, the slot position information can be encoded with a variable number of bits based on the position of the slot in the ordered set of slots.