// SynthesizePhones uses the sounds in a voice to synthesize speech for a given
// word.
func SynthesizePhones(phones []Phone, v Voice) wav.Sound {
res := wav.NewPCM8Sound(1, 44100)
if len(phones) == 0 {
return res
}
wav.Append(res, v["-"+phones[0].Name()])
for i := 0; i < len(phones)-1; i++ {
wav.Append(res, getDiphone(phones[i], phones[i+1], v))
}
wav.Append(res, v[phones[len(phones)-1].Name()+"-"])
return res
}
func getDiphone(p1, p2 Phone, v Voice) wav.Sound {
// If the voice has the diphone, use that.
name := p1.Name() + "-" + p2.Name()
if dp, ok := v[name]; ok {
return dp
}
// Generate the diphone manually using p1- + -p2
edge1 := v[p1.Name()+"-"]
edge2 := v["-"+p2.Name()]
res := edge1.Clone()
wav.Append(res, edge2)
return res
}
func ErrMain() error {
if len(os.Args) < 3 {
return errors.New("Usage: wav-join <input.wav> [<another.wav> ...] " +
"<output.wav>")
}
s, err := wav.ReadSoundFile(os.Args[1])
if err != nil {
return err
}
for _, f := range os.Args[2 : len(os.Args)-1] {
nextS, err := wav.ReadSoundFile(f)
if err != nil {
return err
}
wav.Append(s, nextS)
}
return wav.WriteFile(s, os.Args[len(os.Args)-1])
}