public override WAVSound GenerateWord(string word)
        {
            int      wordIndex = wordToSoundMappingList.FindIndex(m => m.Word == word);
            WAVSound wordSound = null;

            if (wordIndex >= 0)
            {
                WordToSoundMapping wordToSoundMapping = wordToSoundMappingList[wordIndex];
                List <WAVSound>    wavSoundList       = new List <WAVSound>();
                foreach (string soundName in wordToSoundMapping.SoundNameList)
                {
                    FormantSpecification formantSpecification = SpecificationList.Find(s => s.Name == soundName);
                    if (formantSpecification != null)
                    {
                        formantSpecification.GenerateSettingsSequence();
                        WAVSound sound = GenerateSound(formantSpecification);
                        wavSoundList.Add(sound);
                    }
                }
                if (wavSoundList.Count > 0)
                {
                    wordSound = WAVSound.Join(wavSoundList, null);
                }
            }
            return(wordSound);
        }