I am seeing TTS failure for some particular language packs and audio format combinations on speech server 11.
Some of the language packs (fr-CA, en-IN) are not working for Speech Server 11.0
when audio format is set to ULaw, 8bit 8KHz.
WAV header of 46 bytes is created, but the audio is not present.
Code:
Microsoft.Speech.Synthesis.SpeechSynthesizer synth = new SpeechSynthesizer();
SpeechAudioFormatInfo speechAudioFormatInfo =
new SpeechAudioFormatInfo(EncodingFormat.ULaw, 8000, 8, 1, 20, 2, null);
synth.SetOutputToWaveFile("some_file.wav", speechAudioFormatInfo);
synth.SpeakSsml(data);
// data example 1. <?xml version="1.0"?><speak version="1.0" xml:lang="en-IN"> Hello sir</speak>
// data example 2. <?xml version="1.0"?><speak version="1.0" xml:lang="fr-CA"> Bonjour Monsieur</speak>
synth.dispose();
Same code works well for
en-US (Speech Server 10 and 11),
en-GB (Speech server 10 and 11)
fr-CA (Speech Server 10 only)
en-IN (speech server 10 only)
Is this happening because I have UCMA 4.0 preview edition?
