private async Task <string> SynthesisGetAvailableVoicesAsync()
{
try {
string voices = "";
var config = SpeechConfig.FromSubscription(subscriptionKey, region);
using (var synthesizer = new Microsoft.CognitiveServices.Speech.SpeechSynthesizer(config, null)) {
using (var result = await synthesizer.GetVoicesAsync()) {
if (result.Reason == ResultReason.VoicesListRetrieved)
{
foreach (var voice in result.Voices)
{
if (voices.Length > 0)
{
voices += "|";
}
voices += voice.ShortName + " (" + voice.Locale + ")";
}
}
}
}
return(voices);
}
catch (Exception e) {
return("");
}
}
private async void btnVoice_Click(object sender, EventArgs e)
{
SpeechConfig config = null;
Microsoft.CognitiveServices.Speech.SpeechSynthesizer synthesizer = null;
if (txtKey.Text == "" || txtRegion.Text == "")
{
MessageBox.Show("Both Key and Region fields are required.");
return;
}
else
{
// Creates an instance of a speech config with specified subscription key and service region.
config = SpeechConfig.FromSubscription(txtKey.Text, txtRegion.Text);
synthesizer = new Microsoft.CognitiveServices.Speech.SpeechSynthesizer(config);
}
using (var result = await synthesizer.GetVoicesAsync(""))
{
if (result.Reason == ResultReason.VoicesListRetrieved)
{
// API key and region are valid. Open the form to select a voice, passing in the voices list and config object.
System.Collections.ObjectModel.ReadOnlyCollection <Microsoft.CognitiveServices.Speech.VoiceInfo> VoicesList = result.Voices;
frmSelectAzureVoice frm = new frmSelectAzureVoice(VoicesList, config);
frm.ShowDialog();
if (frm.DialogResult == DialogResult.OK)
{
if (frm.SelectedVoice != null)
{
Properties.Settings.Default.AzureVoice = frm.SelectedVoice;
}
}
}
else if (result.Reason == ResultReason.Canceled)
{
MessageBox.Show($"Error retrieving voices list: {result.ErrorDetails}");
}
}
}
private bool SynthesizeAudio(string outputFile, bool isSsml, string text)
{
if (this.synthesizerType == "Windows")
{
using var synth = new System.Speech.Synthesis.SpeechSynthesizer();
try {
synth.InjectOneCoreVoices();
}
catch {
}
synth.Rate = rate;
synth.Volume = volume;
synth.SetOutputToWaveFile(outputFile);
finished = false;
failed = false;
synth.SpeakCompleted += OnSpeakCompleted;
if (isSsml)
{
synth.SpeakSsmlAsync(text);
}
else
{
synth.SpeakAsync(text);
}
while (!finished)
{
Thread.Sleep(100);
}
return(true);
}
else
{
RenewToken();
using var audioConfig = AudioConfig.FromWavFileOutput(outputFile);
using var synthesizer = new Microsoft.CognitiveServices.Speech.SpeechSynthesizer(config, audioConfig);
finished = false;
failed = false;
synthesizer.SynthesisCanceled += OnSynthesisCanceled;
synthesizer.SynthesisCompleted += OnSynthesisCompleted;
if (isSsml)
{
synthesizer.SpeakSsmlAsync(text);
}
else
{
synthesizer.SpeakTextAsync(text);
}
while (!finished)
{
Thread.Sleep(100);
}
return(!failed);
}
}
