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POUnable to create MULTIPLE TTS "wav" files using MS-SAPI 5.1 in C#
 

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  1. POUnable to create MULTIPLE TTS "wav" files using MS-SAPI 5.1 in C#
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    <p>Greetings folks!</p> <p>I'm working on a project where I will have to create WAV files of names using TTS.</p> <p>I have the MS-SAPI 5.1 SDK installed on a Windows Server 2003 and use C# to write the TTS program. Apart from the default Microsoft Sam voice, I have voices from NeoSpeech TTS installed on the server.</p> <p>The issue I'm having is, <strong>the program does not produce more than 1 working WAV file</strong>.</p> <p>To be more specific, if I send 4 names to the program, the program creates 4 WAV files. However only the first name is converted correctly. The file size is greater than 1 kb and the file also plays in media player.</p> <p>The other 3 files are created but are of size 1 kb and do not work in any media player.</p> <p>I'm new to both C# and MS-SAPI but I believe I have done a decent job creating the code. I have spent days trying to figure this out but I'm out of energy now.</p> <p>Any insight on this issue is greatly appreciated. Thanks for your time.</p> <p>Here is my code:</p> <pre><code>using System; using System.Collections.Generic; using System.Collections; using System.Text; using SpeechLib; using System.Threading; namespace TTS_Text_To_Wav { class Gender { public static String MALE = "Male"; public static String FEMALE = "Female"; } class Languages { public static String ENGLISH = "409;9"; public static String SPANISH = "40a"; } class Vendor { public static String VOICEWARE = "Voiceware"; public static String MICROSOFT = "Microsoft"; } class SampleTTS { static void Main(string[] args) { SampleTTS processor = null; try { processor = new SampleTTS(); // get unprocessed items ArrayList unProcessedItems = new ArrayList(); unProcessedItems.Add("Kate"); unProcessedItems.Add("Sam"); unProcessedItems.Add("Paul"); unProcessedItems.Add("Violeta"); if (unProcessedItems != null) { foreach (string record in unProcessedItems) { // convert text to wav processor.ConvertStringToSpeechWav(record, "c:/temp/" + record + ".wav", Vendor.VOICEWARE, Gender.MALE, Languages.ENGLISH); } } } catch (Exception e) { Console.WriteLine(e.Message); } } void ConvertStringToSpeechWav(String textToConvert, String pathToCreateWavFile, String vendor, String gender, String language) { SpVoice voice = null; SpFileStream spFileStream = null; try { spFileStream = new SpFileStream(); voice = new SpVoice(); spFileStream.Format.Type = SpeechAudioFormatType.SAFT8kHz16BitMono; spFileStream.Open(pathToCreateWavFile, SpeechStreamFileMode.SSFMCreateForWrite, false); voice.Voice = voice.GetVoices("Vendor=" + vendor + ";Gender=" + gender, "Language=" + language).Item(0); voice.AudioOutputStream = spFileStream; voice.Speak(textToConvert, SpeechVoiceSpeakFlags.SVSFlagsAsync | SpeechVoiceSpeakFlags.SVSFPurgeBeforeSpeak); voice.WaitUntilDone(Timeout.Infinite); } catch (Exception e) { throw new Exception("Error occured in ConvertStringToSpeechWav()\n" + e.Message); } finally { if (spFileStream != null) { spFileStream.Close(); } } } } } </code></pre> <p><strong>Edit:</strong></p> <p>I seem to notice some new behavior. The code works fine for Microsoft voices on the system. It is only with the NeoSpeech voices I seem to have this issue.</p> <p>Does that mean my code is correct and something is wrong with the voices? For one, I got the voice from my clients so there is nothing I can do about it. Secondly these are production ready voices. I'm pretty sure they are well tested or we would have heard a lot about it.</p> <p>I'm still inclined to believe something is up with the code I wrote.</p> <p>Are there any other suggestions available? I'm in a real fix here and any help will be appreciated.</p>
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