Patent ID: 7917360
Filing Date: 2011-03-29
Classification: G10L

Abstract:
1. A method of aggregating a transient during time stretching of a digital audio signal, the method comprising: detecting a transient in a first analysis frame of a digital audio signal; processing a first plurality of consecutive analysis windows in accordance with a first process, the first plurality including a quantity of consecutive analysis frames equal to a maximum quantity of consecutive re-synthesis frames in which the detected transient can be aligned, a first analysis frame of the first plurality being consecutive to the first analysis frame, the first process including processing a second plurality of consecutive analysis windows in accordance with a second process, the second plurality including a quantity of consecutive analysis frames equal to a difference between a maximum quantity of consecutive analysis frames in which a transient can appear and the maximum quantity of consecutive re-synthesis frames in which the detected transient can be aligned, a first analysis frame of the second plurality being consecutive to a last analysis frame of the first plurality, the second process including aggregating the first frame with the first plurality of consecutive analysis frames processed according to the first process and with the second plurality of consecutive analysis frames processed according to the second process.