private void SpeakButton_Click(object sender, EventArgs e)
{
StatusTextBox.Text = "";
var promptBuilder = new System.Speech.Synthesis.PromptBuilder();
promptBuilder.AppendText(MessageTextBox.Text);
var client = new Voices.AmazonPolly(
SettingsManager.Options.AmazonAccessKey,
SettingsManager.Options.AmazonSecretKey,
SettingsManager.Options.AmazonRegionSystemName
);
var voice = (Voice)((InstalledVoiceEx)VoicesComboBox.SelectedItem).Voice;
Amazon.Polly.Engine engine = null;
if (voice.SupportedEngines.Contains(Amazon.Polly.Engine.Neural))
{
engine = Amazon.Polly.Engine.Neural;
}
var buffer = client.SynthesizeSpeech(voice.Id, promptBuilder.ToXml(), null, engine);
var result = client.LastException == null ? "Success" : client.LastException.Message;
StatusTextBox.Text = string.Format("{0:HH:mm:ss}: {1}", DateTime.Now, result);
var item = Global.DecodeToPlayItem(buffer);
Global.playlist.Add(item);
}
/// <summary>
/// Convert XML to WAV bytes. WAV won't have the header, so you have to add it separately.
/// </summary>
static void ConvertXmlToWav(PlayItem item)
{
var query = System.Web.HttpUtility.ParseQueryString(item.VoiceSourceKeys ?? "");
// Default is local.
var source = VoiceSource.Local;
Enum.TryParse(query[InstalledVoiceEx._KeySource], true, out source);
var voiceId = query[InstalledVoiceEx._KeyVoiceId];
byte[] wavBytes;
if (source == VoiceSource.Amazon)
{
var region = query[InstalledVoiceEx._KeyRegion];
var engine = query[InstalledVoiceEx._KeyEngine];
var client = new Voices.AmazonPolly(
SettingsManager.Options.AmazonAccessKey,
SettingsManager.Options.AmazonSecretKey,
region
);
wavBytes = client.SynthesizeSpeech(voiceId, item.Xml, Amazon.Polly.OutputFormat.Mp3, engine);
if (wavBytes != null && wavBytes.Length > 0)
{
var pi = DecodeToPlayItem(wavBytes);
item.WavHead = pi.WavHead;
item.WavData = pi.WavData;
item.Duration = pi.Duration;
pi.Dispose();
}
}
else
{
wavBytes = ConvertSsmlXmlToWav(voiceId, item.Xml, item.WavHead);
if (wavBytes != null && wavBytes.Length > 0)
{
item.WavData = wavBytes;
item.Duration = AudioHelper.GetDuration(wavBytes.Length, item.WavHead.SampleRate, item.WavHead.BitsPerSample, item.WavHead.Channels);
}
}
}