// Speak
public async Task Say(VoiceRequest request, CancellationToken token)
{
// Stop speech
StopSpeech();
// Stop blink
if (request.DisableBlink && !token.IsCancellationRequested)
{
StopBlink();
}
// Prefetch Web/TTS voice
if (UsePrefetch)
{
PrefetchVoices(request.Voices, token);
}
// Speak sequentially
foreach (var v in request.Voices)
{
if (token.IsCancellationRequested)
{
return;
}
if (v.Source == VoiceSource.Local)
{
if (voices.ContainsKey(v.Name))
{
// Wait for PreGap
await Task.Delay((int)(v.PreGap * 1000), token);
// Play audio
History?.Add(v);
AudioSource.PlayOneShot(voices[v.Name]);
}
else
{
Debug.LogWarning($"Voice not found: {v.Name}");
}
}
else
{
// Download voice from web or TTS service
var downloadStartTime = Time.time;
AudioClip clip = null;
if (v.Source == VoiceSource.Web)
{
if (VoiceDownloadFunc != null)
{
clip = await VoiceDownloadFunc(v, token);
}
else
{
Debug.LogError("Voice download function not found");
}
}
else if (v.Source == VoiceSource.TTS)
{
var ttsFunc = GetTTSFunction(v.GetTTSFunctionName());
if (ttsFunc != null)
{
clip = await ttsFunc(v, token);
}
else
{
Debug.LogError($"TTS function not found: {v.GetTTSFunctionName()}");
}
}
if (clip != null)
{
// Wait for PreGap remains after download
var preGap = v.PreGap - (Time.time - downloadStartTime);
if (preGap > 0)
{
if (!token.IsCancellationRequested)
{
try
{
await Task.Delay((int)(preGap * 1000), token);
}
catch (TaskCanceledException)
{
// TaskCanceledException raises
Debug.Log("Task canceled in waiting PreGap");
}
}
}
// Play audio
History?.Add(v);
AudioSource.PlayOneShot(clip);
}
}
// Wait while voice playing
while (AudioSource.isPlaying && !token.IsCancellationRequested)
{
await Task.Delay(1);
}
if (!token.IsCancellationRequested)
{
try
{
// Wait for PostGap
await Task.Delay((int)(v.PostGap * 1000), token);
}
catch (TaskCanceledException)
{
Debug.Log("Task canceled in waiting PostGap");
}
}
}
// Reset viseme
LipSyncContext?.ResetContext();
// Restart blink
if (request.DisableBlink && !token.IsCancellationRequested)
{
_ = StartBlinkAsync();
}
}
// Speak
public async Task Say(VoiceRequest request, CancellationToken token)
{
// Stop speech
StopSpeech();
// Stop blink
if (request.DisableBlink && !token.IsCancellationRequested)
{
StopBlink();
}
// Speak sequentially
foreach (var v in request.Voices)
{
if (token.IsCancellationRequested)
{
return;
}
if (v.Source == VoiceSource.Local)
{
if (voices.ContainsKey(v.Name))
{
// Wait for PreGap
await Task.Delay((int)(v.PreGap * 1000), token);
// Play audio
AudioSource.PlayOneShot(voices[v.Name]);
}
else
{
Debug.LogWarning($"Voice not found: {v.Name}");
}
}
else
{
// Download voice from web or TTS service
var downloadStartTime = Time.time;
AudioClip clip = null;
if (v.Source == VoiceSource.Web)
{
clip = await(VoiceDownloadFunc ?? GetAudioClipFromWeb)(v, WebAudioType);
}
else if (v.Source == VoiceSource.TTS)
{
clip = await(SpeechToTextFunc ?? GetAudioClipFromTTS)(v, TTSAudioType);
}
if (clip != null)
{
// Wait for PreGap remains after download
var preGap = v.PreGap - (Time.time - downloadStartTime);
if (preGap > 0)
{
await Task.Delay((int)(preGap * 1000), token);
}
// Play audio
AudioSource.PlayOneShot(clip);
}
}
// Wait while voice playing
while (AudioSource.isPlaying && !token.IsCancellationRequested)
{
await Task.Delay(1);
}
// Wait for PostGap
await Task.Delay((int)(v.PostGap * 1000), token);
}
// Restart blink
if (request.DisableBlink && !token.IsCancellationRequested)
{
StartBlink();
}
}