Japanese text to speech conversion

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C#3.0

C#

I want to convert japanese text to speech using microsoft speech sdk 5.1. I have found there 5 kinds of voices including simplified chinese. Chinese text to speech works fine.

foreach (ISpeechObjectToken Token in speech.GetVoices(string.Empty, string.Empty))
            {
                string str = Token.GetDescription(49).ToString();
                if (str.Equals("Microsoft Simplified Chinese"))
                {
                    speech.Voice = speech.GetVoices(string.Empty, string.Empty).Item(3);//Item(cmbVoices.SelectedIndex);
                }
                // Populate the ComboBox Entries ..
                cmbVoices.Items.Add(Token.GetDescription(49));
            }

In the documentation of Microsoft speech sdk I have found that the sdk supports Japanese text.

How can I convert Japanese text to speech?