/// <summary>
/// Calculate the target cost.
/// </summary>
/// <param name="condidate">Feature of condidate unit.</param>
/// <param name="target">Feature of target unit to find.</param>
/// <returns>Cost.</returns>
internal float CalcTargetCost(TtsUnitFeature condidate, TtsUnitFeature target)
{
float targetCost = 0.0f;
// position cost: in sentence, in word and in syllable
targetCost = CalcTargetCostPosInSentence(condidate.PosInSentence,
target.PosInSentence);
targetCost += CalcTargetCostPosInWord(condidate.PosInWord,
target.PosInWord);
targetCost += CalcTargetCostPosInSyl(condidate.PosInSyllable,
target.PosInSyllable);
// phone context cost: left phone and right phone
targetCost += CalcTargetCostLeftContextPhone(condidate.LeftContextPhone,
target.LeftContextPhone);
targetCost += CalcTargetCostRightContextPhone(condidate.RightContextPhone,
target.RightContextPhone);
// tone context cost: left tone and right tone
targetCost += CalcTargetCostLeftContextTone(condidate.LeftContextTone,
target.LeftContextTone);
targetCost += CalcTargetCostRightContextTone(condidate.RightContextTone,
target.RightContextTone);
// stress cost
targetCost += CalcTargetCostTtsStress(condidate.TtsStress,
target.TtsStress);
// emphasis cost
targetCost += CalcTargetCostTtsEmphasis(condidate.TtsEmphasis,
target.TtsEmphasis);
targetCost = targetCost * _totalTargetCostWeight;
return targetCost;
}
/// <summary>
/// Initializes a new instance of the <see cref="TtsUnit"/> class.
/// </summary>
/// <param name="language">Language for this unit.</param>
public TtsUnit(Language language)
{
_language = language;
_languages.Add(_language);
Feature = new TtsUnitFeature();
MetaUnit = new TtsMetaUnit(language);
}