private void FinishedRecordEventHandler(AudioClip clip)
{
if (_startRecordButton.interactable)
{
_speechRecognitionState.color = Color.yellow;
}
if (clip == null)
{
return;
}
RecognitionConfig config = RecognitionConfig.GetDefault();
config.languageCode = ((Enumerators.LanguageCode)_languageDropdown.value).Parse();
config.audioChannelCount = clip.channels;
// configure other parameters of the config if need
GeneralRecognitionRequest recognitionRequest = new GeneralRecognitionRequest()
{
audio = new RecognitionAudioContent()
{
content = clip.ToBase64()
},
//audio = new RecognitionAudioUri() // for Google Cloud Storage object
//{
// uri = "gs://bucketName/object_name"
//},
config = config
};
_speechRecognition.Recognize(recognitionRequest);
}
private void FinishedRecordEventHandler(AudioClip clip, float[] raw)
{
if (!_voiceDetectionToggle.isOn && _startRecordButton.interactable)
{
_speechRecognitionState.color = Color.yellow;
}
if (clip == null || !_recognizeDirectlyToggle.isOn)
{
return;
}
RecognitionConfig config = RecognitionConfig.GetDefault();
//config.languageCode = ((Enumerators.LanguageCode)_languageDropdown.value).Parse();
config.languageCode = "ko-KR";
config.speechContexts = new SpeechContext[]
{
new SpeechContext()
{
phrases = _contextPhrasesInputField.text.Replace(" ", string.Empty).Split(',')
}
};
config.audioChannelCount = clip.channels;
// configure other parameters of the config if need
GeneralRecognitionRequest recognitionRequest = new GeneralRecognitionRequest()
{
audio = new RecognitionAudioContent()
{
content = raw.ToBase64()
},
//audio = new RecognitionAudioUri() // for Google Cloud Storage object
//{
// uri = "gs://bucketName/object_name"
//},
config = config
};
if (_longRunningRecognizeToggle.isOn)
{
_speechRecognition.LongRunningRecognize(recognitionRequest);
}
else
{
_speechRecognition.Recognize(recognitionRequest);
}
}
// Recognize speech by GCSR
public async Task <string> RecognizeOnceAsync()
{
// Update RecognitionId
var currentRecognitionId = Guid.NewGuid().ToString();
recognitionId = currentRecognitionId;
// For debugging and testing
if (UseDummy)
{
await Task.Delay(1000);
return(DummyText);
}
try
{
// Start recording
speechRecognition.StartRecord(true);
nowRecording = true;
// Wait for talking ends or timeout
var startTime = Time.time;
while (nowRecording)
{
if (Time.time - startTime > Timeout)
{
Debug.Log($"Recording timeout");
speechRecognition.StopRecord();
return(string.Empty);
}
await Task.Delay(50);
}
// Stop recording just after voice detected
speechRecognition.StopRecord();
// Exit if RecognitionId is updated by another request
if (recognitionId != currentRecognitionId)
{
Debug.Log($"Id was updated by another request: Current {currentRecognitionId} / Global {recognitionId}");
return(string.Empty);
}
// Exit if audio clip to recognize is empty
if (recordedClip == null)
{
Debug.LogError("No audio clip to recognize");
return(string.Empty);
}
// Set config for each request
var config = RecognitionConfig.GetDefault();
config.languageCode = Language;
config.audioChannelCount = recordedClip.channels;
// Compose request
var recognitionRequest = new GeneralRecognitionRequest()
{
audio = new RecognitionAudioContent()
{
content = recordedRawData.ToBase64()
},
config = config
};
string postData = JsonConvert.SerializeObject(recognitionRequest);
var content = new StringContent(postData, Encoding.UTF8, "application/json");
// Post to recognize
using (var client = new HttpClient())
{
var response = await client.PostAsync("https://speech.googleapis.com/v1/speech:recognize?key=" + speechRecognition.apiKey, content);
if (!response.IsSuccessStatusCode)
{
throw new HttpRequestException($"Error occured while calling GCSR ({response.StatusCode.ToString()})");
}
var responseContent = await response.Content.ReadAsStringAsync();
var recognitionResponse = JsonConvert.DeserializeObject <RecognitionResponse>(responseContent);
// Return empty when nothing recognized
if (recognitionResponse.results.Length == 0 || recognitionResponse.results[0].alternatives.Length == 0)
{
Debug.Log("Nothing recognized by GCSR");
return(string.Empty);
}
// Return recognized text
return(recognitionResponse.results[0].alternatives[0].transcript);
}
}
catch (Exception ex)
{
Debug.LogError($"Error occured in recognizing by GCSR: {ex.Message}\n{ex.StackTrace}");
}
return(string.Empty);
}