Multi-Channel Audio Content Analysis Based Upmix Detection

摘要

Forensic audio upmixer detection is described. Feature sets are extracted from an audio signal that has two or more individual channels. Based on the extracted feature sets, it is determined whether the audio signal was upmixed from audio content that has fewer channels.

主权项

1. A method, comprising:
accessing or receiving an audio signal that has two or more individual channels; extracting one or more features from the accessed audio signal; and determining, based on the extracted features, whether the audio signal was upmixed from audio content that has fewer channels than the accessed or received audio signal.