Enhanced spatialization system with satellite device

摘要

A system enhances spatialization in which spatial information about sound sources at an originating location is represented in an audio signal. The system applies a phase difference analysis to the signals received from an array of spaced apart input devices or microphones to derive spatial or directional information about the relative directions of one or more satellite input devices or microphones. The signals from the satellite input devices or microphones are mixed by a function of their respective directions to generate a multichannel output signal. When processed by a remote or local system, the output signal provides a representation of the relative directions of the sound sources at the originating location at a receiving location.

主权项

1. A system that enhances spatialization with a satellite microphone comprising:
an array device that processes first incoming audio signals and converts the audio signals into electrical signals; a satellite input device that processes second incoming audio signals received at one or more locations distant from the array device; a processor; and a non-transitory computer readable medium comprising computer program code that, when executed, causes the processor to: analyze the first incoming audio signals and the second incoming audio signals to derive a direction of the second incoming audio signals received by the satellite input device relative to the first incoming audio signals received by the array device; smooth the derived direction over time; determine whether the satellite input device has changed location relative to the array device; in response to a determination that the satellite device has changed location, update the derived direction in a memory; and proportionally mix an output of a satellite input device signal into one or more audio channels of a multichannel output signal.