// 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 ErrMain() error {
if len(os.Args) != 3 {
return errors.New("Usage: wav-tone <frequency> <file.wav>")
}
freq, err := strconv.Atoi(os.Args[1])
if err != nil {
return err
}
sampleRate := 44100
sound := wav.NewPCM8Sound(1, sampleRate)
for i := 0; i < sampleRate*1; i++ {
time := float64(i) / float64(sampleRate)
value := wav.Sample(math.Sin(time * math.Pi * 2 * float64(freq)))
sound.SetSamples(append(sound.Samples(), value))
}
return wav.WriteFile(sound, os.Args[2])
}