778        float tau;  in tonality_analysis()  local
794        tau = .001f*tonal->music_prob + .01f*(1-tonal->music_prob);  in tonality_analysis()
801        p0 = (1-tonal->vad_prob)*(1-tau) +    tonal->vad_prob *tau;  in tonality_analysis()
802        p1 =    tonal->vad_prob *(1-tau) + (1-tonal->vad_prob)*tau;  in tonality_analysis()
814        tau = .0001f;  in tonality_analysis()
822        p0 = (1-tonal->music_prob)*(1-tau) +    tonal->music_prob *tau;  in tonality_analysis()
823        p1 =    tonal->music_prob *(1-tau) + (1-tonal->music_prob)*tau;  in tonality_analysis()
851        tonal->pspeech[0] = s0*(1-tau)*speech0;  in tonality_analysis()
852        tonal->pmusic [0] = m0*(1-tau)*music0;  in tonality_analysis()
860        tonal->pspeech[DETECT_SIZE-1] = m0*tau*speech0;  in tonality_analysis()
862        tonal->pmusic [DETECT_SIZE-1] = s0*tau*music0;  in tonality_analysis()