def estimStereoSUIMMParamsWriteSeps(self, maxFrames=1000):
        """same as estimStereoSIMMParamsWriteSeps, but adds the unvoiced
        element in HF0
        """
        totFrames, nChunks, maxFrames = self.checkChunkSize(maxFrames)
        print "    Estimating IMM parameters, on stereo channels, with",\
              self.SIMMParams['R'],\
              "\n    accompaniment components."+\
              "    Nb of chunks: %d." %nChunks