Пример #1
0
        /// <summary>
        /// Calculate the weighted volume of a sound source.
        /// NB: this consumes lots of memory for long sources.
        /// </summary>
        /// <param name="src"></param>
        /// <param name="dbSPL"></param>
        /// <returns>Volume (units, not dB)</returns>
        public static double WeightedVolume(ISoundObj src, double dbSPL, double dbSPLBase)
        {
            double wv = 0;

            for (ushort c = 0; c < src.NumChannels; c++)
            {
                SingleChannel channel = src.Channel(c);
                wv += Loudness.WeightedVolume1(channel, dbSPL, dbSPLBase);
            }
            src.Reset();
            wv = wv / src.NumChannels;
            return(wv);
        }
Пример #2
0
        public static FilterProfile DifferentialSPL(double phon0, double phon1, double scale)
        {
            FilterProfile spl  = new FilterProfile();
            FilterProfile spl0 = Loudness.SPL(phon0);
            FilterProfile spl1 = Loudness.SPL(phon1);

            for (int j = 0; j < spl1.Count; j++)
            {
                FreqGain fg = spl1[j];
                fg.Gain = scale * (spl0[j].Gain - fg.Gain);
                spl.Add(fg);
            }
            return(spl);
        }