金融界2025年6月28日消息，国家知识产权局信息显示，杜比国际公司申请一项名为“用于音频比特流编码和解码的方法、设备和介质”的专利，公开号CN120226077A，申请日期为2023年09月。
专利摘要显示，一种用于低延迟传输到一个或多个回放设备的沉浸式音频节目的音频信号的编码方法，所述方法包括：接收所述沉浸式音频节目的多个时域音频信号；提取时域音频信号的帧，其中所提取的时域音频信号的帧与时域音频信号的前一提取帧重叠，由此将音频信号分割成重叠帧；将所述时域音频信号的帧变换为频域信号；使用感知激励量化工具对频域信号进行量化；对量化的频域信号进行编码；将量化和编码的频域信号整合成帧内的一个或多个独立块；以及将所述一个或多个独立块整合成编码帧。
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