public PhonemeDetector_Vowel(PhonemeDetector detector)
            : base(detector)
        {
            beg1 = (int)(187 * FrequencyScale);//1500
            end1 = (int)(800 * FrequencyScale);

            beg2 = (int)(2000 * FrequencyScale);
            end2 = (int)(4000 * FrequencyScale);

            beg3 = (int)(2500 * FrequencyScale);
            end3 = (int)(2900 * FrequencyScale);

            beg4 = (int)(1220 * FrequencyScale);
            end4 = (int)(1600 * FrequencyScale);


            levelR1 = new NoiseAnalyserFilter(beg1, end1, 2.8);
        }