Method and System for Object-Dependent Adjustment of Levels of Audio Objects

摘要

In some embodiments, a method for adaptive control of gain applied to an audio signal, including steps of analyzing segments of the signal to identify audio objects (e.g., voices of participants in a voice conference); storing information regarding each distinct identified object; using at least some of the information to determine at least one of a target gain, or a gain change rate for reaching a target gain, for each identified object; and applying gain to segments of the signal indicative of an identified object such that the gain changes (typically, at the gain change rate for the object) from an initial gain to the target gain for the object. The information stored may include a scene description. Aspects of the invention include a system configured (e.g., programmed) to per form any embodiment of the inventive method.

主权项

1. A method for adaptive control of gain applied to an audio signal, including the steps of:
(a) analyzing segments of the signal to identify audio objects indicated by said signal, including by identifying an audio object indicated by each of the segments; (b) storing information regarding each distinct audio object identified in step (a), including an identification of the object and a measure of level of each of at least one segment of the signal indicative of the object; (c) using at least a subset of the information stored in step (b) to determine, independently for each distinct audio object identified in step (a), target gain and a gain change rate for reaching the target gain for the audio object; and (d) applying gain to the segments of the signal indicative of one audio object identified in step (a), such that said gain changes, at the gain change rate for said object, from an initial gain to the target gain for the object.