SOUND FIELD SPATIAL STABILIZER

摘要

In a system and method for maintaining the spatial stability of a sound field a balance gain may be calculated for two or more microphone signals. The balance gain may be associated with a spatial image in the sound field. Signal values may be calculated for each of the microphone. The signal values may be signal estimates or signal gains calculated to improve a characteristic of the microphone signals. The differences between the signal values associated with each microphone signal may be limited although some difference between signal values may be allowable. One or more microphone signals are adjusted responsive to the two or more balance gains and the signal gains to maintain the spatial stability of the sound field. The adjustments of one or more microphone signals may include mixing of two or more microphone. The signal gains are applied to the two or more microphone signals.

主权项

1. A computer implemented method for maintaining spatial stability of a sound field comprising:
calculating balance gains for each of two or more microphone signals; calculating one or more signal values for each of the two or more microphone signals; limiting differences between corresponding one or more signal values for each of the two or more microphone signals; and gain adjusting the two or more microphone signals responsive to the calculated balance gains and the limited one or more signal values for each of the two or more microphone signals.