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Multi-channel audio enhancement system for use in recording and playback and methods for providing same

机译:用于记录和回放的多通道音频增强系统及其提供方法

摘要

An audio enhancement system and method for use receives a group of multi-channel audio signals and provides a simulated surround sound environment through playback of only two output signals. The multi-channel audio signals comprise a pair of front signals intended for playback from a forward sound stage and a pair of rear signals intended for playback from a rear sound stage. The front and rear signals are modified in pairs by separating an ambient component of each pair of signals from a direct component and processing at least some of the components with a head-related transfer function. Processing of the individual audio signal components is determined by an intended playback position of the corresponding original audio signals. The individual audio signal components are then selectively combined with the original audio signals to form two enhanced output signals for generating a surround sound experience upon playback.
机译:使用的音频增强系统和方法接收一组多通道音频信号,并通过仅回放两个输出信号来提供模拟的环绕声环境。多声道音频信号包括意图从前声级回放的一对前信号和意图从后声级回放的一对后信号。通过将每对信号的环境分量与直接分量分离并使用与头部相关的传递函数处理至少一些分量,来成对修改前后信号。各个音频信号分量的处理取决于相应原始音频信号的预期播放位置。然后将各个音频信号分量与原始音频信号进行选择性组合,以形成两个增强的输出信号,以便在播放时产生环绕声体验。

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