我正在尝试使用Watson Unity SDK随附的示例脚本“ ExampleTextToSpeech”。但是，Watson Text to Speech示例在尝试合成时会引发错误。我的服务IAM密钥似乎正确。我没有指定AIM URL或服务URL。我认为默认值应该正确，因为我在北美地区，并且对Watson Assistant和语音转文本都有效。问题似乎出在Synthesize调用上。我在下面列出了错误。
对不起，我第一次没有发布实际代码。我以为我不需要，因为它与SDK演示中的代码相同。请在下面找到代码。我删除了一些无关的代码位，例如从代码中定制单词。错误可以在代码块的末尾找到。
using UnityEngine;
using IBM.Watson.DeveloperCloud.Services.TextToSpeech.v1;
using IBM.Watson.DeveloperCloud.Logging;
using IBM.Watson.DeveloperCloud.Utilities;
using System.Collections;
using System.Collections.Generic;
using IBM.Watson.DeveloperCloud.Connection;
public class TTS : MonoBehaviour
{
//Iam Apikey: v0qlUa8hojlVW8rKBh48fO0JtQYTO9vfNkGMG6wpptbs
#region PLEASE SET THESE VARIABLES IN THE INSPECTOR
[Space(10)]
[Tooltip("The service URL (optional). This defaults to \"https://stream.watsonplatform.net/text-to-speech/api\"")]
[SerializeField]
private string _serviceUrl;
[Header("CF Authentication")]
[Tooltip("The authentication username.")]
[SerializeField]
private string _username;
[Tooltip("The authentication password.")]
[SerializeField]
private string _password;
[Header("IAM Authentication")]
[Tooltip("The IAM apikey.")]
[SerializeField]
private string _iamApikey;
[Tooltip("The IAM url used to authenticate the apikey (optional). This defaults to \"https://iam.bluemix.net/identity/token\".")]
[SerializeField]
private string _iamUrl;
#endregion
TextToSpeech _service;
string _testString = "<speak version=\"1.0\"><say-as interpret-as=\"letters\">I'm sorry</say-as>. <prosody pitch=\"150Hz\">This is Text to Speech!</prosody><express-as type=\"GoodNews\">I'm sorry. This is Text to Speech!</express-as></speak>";
string _createdCustomizationId;
CustomVoiceUpdate _customVoiceUpdate;
string _customizationName = "unity-example-customization";
string _customizationLanguage = "en-US";
string _customizationDescription = "A text to speech voice customization created within Unity.";
string _testWord = "Watson";
private bool _synthesizeTested = false;
private bool _getVoicesTested = false;
private bool _getVoiceTested = false;
private bool _getPronuciationTested = false;
private bool _getCustomizationsTested = false;
private bool _createCustomizationTested = false;
private bool _deleteCustomizationTested = false;
private bool _getCustomizationTested = false;
private bool _updateCustomizationTested = false;
private bool _getCustomizationWordsTested = false;
private bool _addCustomizationWordsTested = false;
private bool _deleteCustomizationWordTested = false;
private bool _getCustomizationWordTested = false;
void Start()
{
LogSystem.InstallDefaultReactors();
Runnable.Run(CreateService());
}
private IEnumerator CreateService()
{
// Create credential and instantiate service
Credentials credentials = null;
if (!string.IsNullOrEmpty(_username) && !string.IsNullOrEmpty(_password))
{
// Authenticate using username and password
credentials = new Credentials(_username, _password, _serviceUrl);
}
else if (!string.IsNullOrEmpty(_iamApikey))
{
// Authenticate using iamApikey
TokenOptions tokenOptions = new TokenOptions()
{
IamApiKey = _iamApikey,
IamUrl = _iamUrl
};
credentials = new Credentials(tokenOptions, _serviceUrl);
// Wait for tokendata
while (!credentials.HasIamTokenData())
yield return null;
}
else
{
throw new WatsonException("Please provide either username and password or IAM apikey to authenticate the service.");
}
_service = new TextToSpeech(credentials);
Runnable.Run(Examples());
}
private IEnumerator Examples()
{
// Synthesize
Log.Debug("ExampleTextToSpeech.Examples()", "Attempting synthesize.");
_service.Voice = VoiceType.en_US_Allison;
_service.ToSpeech(HandleToSpeechCallback, OnFail, _testString, true);
while (!_synthesizeTested)
yield return null;
// Get Voices
Log.Debug("ExampleTextToSpeech.Examples()", "Attempting to get voices.");
_service.GetVoices(OnGetVoices, OnFail);
while (!_getVoicesTested)
yield return null;
// Get Voice
Log.Debug("ExampleTextToSpeech.Examples()", "Attempting to get voice {0}.", VoiceType.en_US_Allison);
_service.GetVoice(OnGetVoice, OnFail, VoiceType.en_US_Allison);
while (!_getVoiceTested)
yield return null;
Log.Debug("ExampleTextToSpeech.Examples()", "Text to Speech examples complete.");
}
void HandleToSpeechCallback(AudioClip clip, Dictionary<string, object> customData = null)
{
PlayClip(clip);
}
private void PlayClip(AudioClip clip)
{
if (Application.isPlaying && clip != null)
{
GameObject audioObject = new GameObject("AudioObject");
AudioSource source = audioObject.AddComponent<AudioSource>();
source.spatialBlend = 0.0f;
source.loop = false;
source.clip = clip;
source.Play();
Destroy(audioObject, clip.length);
_synthesizeTested = true;
}
}
private void OnGetVoices(Voices voices, Dictionary<string, object> customData = null)
{
Log.Debug("ExampleTextToSpeech.OnGetVoices()", "Text to Speech - Get voices response: {0}", customData["json"].ToString());
_getVoicesTested = true;
}
private void OnGetVoice(Voice voice, Dictionary<string, object> customData = null)
{
Log.Debug("ExampleTextToSpeech.OnGetVoice()", "Text to Speech - Get voice response: {0}", customData["json"].ToString());
_getVoiceTested = true;
}
private void OnFail(RESTConnector.Error error, Dictionary<string, object> customData)
{
Log.Error("ExampleTextToSpeech.OnFail()", "Error received: {0}", error.ToString());
}
}
[12/11/2018 16:57:45][RESTConnector.ProcessRequestQueue()][ERROR] URL: /v1/synthesize?accept=audio%2fwav&voice=en-US_AllisonVoice&text=%3cspeak+version%3d%221.0%22%3e%3csay-as+interpret-as%3d%22letters%22%3eI%27m+sorry%3c%2fsay-as%3e.+%3cprosody+pitch%3d%22150Hz%22%3eThis+is+Text+to+Speech%21%3c%2fprosody%3e%3cexpress-as+type%3d%22GoodNews%22%3eI%27m+sorry.+This+is+Text+to+Speech%21%3c%2fexpress-as%3e%3c%2fspeak%3e, ErrorCode: 0, Error: Cannot connect to destination host, Response:
UnityEngine.Debug:LogError(Object)
IBM.Watson.DeveloperCloud.Debug.DebugReactor:ProcessLog(LogRecord) (at Assets/Watson/Scripts/Debug/DebugReactor.cs:60)
IBM.Watson.DeveloperCloud.Logging.LogSystem:ProcessLog(LogRecord) (at Assets/Watson/Scripts/Logging/Logger.cs:206)
IBM.Watson.DeveloperCloud.Logging.Log:Error(String, String, Object[]) (at Assets/Watson/Scripts/Logging/Logger.cs:279)
IBM.Watson.DeveloperCloud.Connection.<ProcessRequestQueue>c__Iterator0:MoveNext() (at Assets/Watson/Scripts/Connection/RESTConnector.cs:607)
IBM.Watson.DeveloperCloud.Utilities.Routine:MoveNext() (at Assets/Watson/Scripts/Utilities/Runnable.cs:131)
UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)
[12/11/2018 16:57:45][ExampleTextToSpeech.OnFail()][ERROR] Error received: URL: /v1/synthesize?accept=audio%2fwav&voice=en-US_AllisonVoice&text=%3cspeak+version%3d%221.0%22%3e%3csay-as+interpret-as%3d%22letters%22%3eI%27m+sorry%3c%2fsay-as%3e.+%3cprosody+pitch%3d%22150Hz%22%3eThis+is+Text+to+Speech%21%3c%2fprosody%3e%3cexpress-as+type%3d%22GoodNews%22%3eI%27m+sorry.+This+is+Text+to+Speech%21%3c%2fexpress-as%3e%3c%2fspeak%3e, ErrorCode: 0, Error: Cannot connect to destination host, Response:
UnityEngine.Debug:LogError(Object)
IBM.Watson.DeveloperCloud.Debug.DebugReactor:ProcessLog(LogRecord) (at Assets/Watson/Scripts/Debug/DebugReactor.cs:60)
IBM.Watson.DeveloperCloud.Logging.LogSystem:ProcessLog(LogRecord) (at Assets/Watson/Scripts/Logging/Logger.cs:206)
IBM.Watson.DeveloperCloud.Logging.Log:Error(String, String, Object[]) (at Assets/Watson/Scripts/Logging/Logger.cs:279)
TTS:OnFail(Error, Dictionary`2) (at Assets/Scripts/TTS.cs:158)
IBM.Watson.DeveloperCloud.Services.TextToSpeech.v1.TextToSpeech:ToSpeechResponse(Request, Response) (at Assets/Watson/Scripts/Services/TextToSpeech/v1/TextToSpeech.cs:492)
IBM.Watson.DeveloperCloud.Connection.<ProcessRequestQueue>c__Iterator0:MoveNext() (at Assets/Watson/Scripts/Connection/RESTConnector.cs:647)
IBM.Watson.DeveloperCloud.Utilities.Routine:MoveNext() (at Assets/Watson/Scripts/Utilities/Runnable.cs:131)
UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)
答案 0 :(得分：0)
您应该为您所在地区的“文字转语音”服务明确使用服务URL。这是美国南部的网址
BasicHttpsBinding binding = new BasicHttpsBinding
{
MaxBufferPoolSize = 1073741824,
MaxBufferSize = 1073741824,
MaxReceivedMessageSize = 1073741824
};
binding.ReaderQuotas.MaxDepth = 32;
binding.ReaderQuotas.MaxArrayLength = 1073741824;
binding.ReaderQuotas.MaxStringContentLength = 1073741824;
binding.Security.Mode = BasicHttpsSecurityMode.Transport;
binding.Security.Transport.ClientCredentialType = HttpClientCredentialType.Ntlm;
MyServiceClient client = new MyServiceClient(binding, new EndpointAddress(new Uri("https://example.com/MyService.svc"), new DnsEndpointIdentity("mydomain.com")));
client.ClientCredentials.Windows.AllowedImpersonationLevel = System.Security.Principal.TokenImpersonationLevel.Impersonation;
client.ClientCredentials.Windows.ClientCredential.Domain = Configuration.GetSection("WCF")["MyServiceDomain"];
client.ClientCredentials.Windows.ClientCredential.UserName = Configuration.GetSection("WCF")["MyServiceUserName"];
client.ClientCredentials.Windows.ClientCredential.Password = Configuration.GetSection("WCF")["MyServicePassword"];
// client call
SDK存在一个问题，其中未使用默认服务URL。合并此拉取请求后，该问题将得到解决。
https://stream.watsonplatform.net/text-to-speech/api