APPARATUS AND METHOD FOR RESTORING MULTI-CHANNEL AUDIO SIGNAL USING HE-AAC DECODER AND MPEG SURROUND DECODER
    2.
    发明申请
    APPARATUS AND METHOD FOR RESTORING MULTI-CHANNEL AUDIO SIGNAL USING HE-AAC DECODER AND MPEG SURROUND DECODER 有权
    使用HE-AAC解码器和MPEG环绕解码器恢复多通道音频信号的装置和方法

    公开(公告)号:US20120201388A1

    公开(公告)日:2012-08-09

    申请号:US13449883

    申请日:2012-04-18

    IPC分类号: H04R5/00

    摘要: Provided is a method for controlling synchronizing downmix signals and MPEG surround side information signals by controlling a delay according to the kind of downmix audio signals in an MPEG surround decoder. When multi-channel audio signals are restored using an HE-AAC decoder and a low-power MPEG surround decoder and complex QMF signals outputted from the HE-AAC decoder are used as downmix signals, a delay unit compensates for a delay caused in a real-to-complex converter. Anther delay unit delays spatial parameters to compensate for a delay caused in QMF and Nyquist banks when time-domain downmix signals are used. Also, when multi-channel audio signals are restored using an HE-AAC decoder and a high-quality MPEG surround decoder and complex QMF signals outputted from the HE-AAC decoder are used as downmix signals, a delay unit compensates for a delay caused in a real-to-complex converter.

    摘要翻译: 提供了一种通过根据MPEG环绕解码器中的下混音频信号的种类来控制延迟来控制同步下混信号和MPEG环绕侧信息信号的方法。 当使用HE-AAC解码器和低功率MPEG环绕解码器来恢复多声道音频信号时,使用从HE-AAC解码器输出的复杂QMF信号作为下混合信号,延迟单元补偿实际产生的延迟 复合转换器。 花时延单元延迟空间参数以补偿在使用时域降混信号时在QMF和奈奎斯特银行中引起的延迟。 此外,当使用HE-AAC解码器和高质量MPEG环绕解码器恢复多声道音频信号并且将从HE-AAC解码器输出的复杂QMF信号用作下混合信号时,延迟单元补偿由 一个真实到复杂的转换器。

    SYSTEM AND METHOD FOR TRANSMITTING/RECEIVING OBJECT-BASED AUDIO
    4.
    发明申请
    SYSTEM AND METHOD FOR TRANSMITTING/RECEIVING OBJECT-BASED AUDIO 审中-公开
    用于发送/接收基于对象的音频的系统和方法

    公开(公告)号:US20110166681A1

    公开(公告)日:2011-07-07

    申请号:US13049188

    申请日:2011-03-16

    IPC分类号: G06F17/00

    CPC分类号: H04S7/30 G06F3/16 H04S2400/11

    摘要: Provided is a system and method for transmitting/receiving an object-based audio. The system includes: a pre-processing unit for receiving an audio signal from diverse sources of outside and creating an object-based audio signal through a pre-processing procedure; an object-based audio editing unit for editing the object-based audio signal from the pre-processing unit and organizing an audio scene; an object-based audio coding unit for coding/multiplexing information on the object-based audio signal and the audio scene from the object-based audio editing unit and creating object-based audio contents; and a transmitting unit for transmitting the object-based audio contents from the object-based audio coding unit.

    摘要翻译: 提供了一种用于发送/接收基于对象的音频的系统和方法。 该系统包括:预处理单元,用于从外部的不同源接收音频信号,并通过预处理过程创建基于对象的音频信号; 基于对象的音频编辑单元,用于从预处理单元编辑基于对象的音频信号并组织音频场景; 基于对象的音频编码单元,用于从基于对象的音频编辑单元对基于对象的音频信号和音频场景的信息进行编码/复用,并创建基于对象的音频内容; 以及发送单元,用于从基于对象的音频编码单元发送基于对象的音频内容。