public static async Task Main(string[] args)
{
var text = "The quick brown fox jumps over the lazy dog.";
if (args?.Length > 1)
{
text = args[1];
}
// credentials
var userProfile = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
var keyFile = Path.Combine(userProfile, "Projects", "DevKeys", "azure-speech.txt");
var lines = File.ReadAllLines(keyFile);
var subscriptionKey = lines[0];
var region = lines[1];
var resourceName = lines[2];
// caching
var cacheDirName = Path.Combine(userProfile, "Projects");
var cacheDir = new DirectoryInfo(cacheDirName);
var cache = new CachingStrategy
{
new FileCacheLayer(cacheDir)
};
var voiceListDecoder = new JsonFactory <Voice[]>();
var audioDecoder = new NAudioAudioDataDecoder();
var ttsClient = new TextToSpeechClient(
region,
subscriptionKey,
resourceName,
voiceListDecoder,
audioDecoder,
cache);
var voices = await ttsClient
.GetVoicesAsync()
.ConfigureAwait(false);
var voice = Array.Find(voices, v => v.Locale == "en-US" && v.Gender == "Female");
try
{
//await DecodeAudio(text, audioDecoder, ttsClient, voice);
await PlayAudioAsync(text, audioDecoder, ttsClient, voice).ConfigureAwait(false);
Console.WriteLine("Success!");
}
catch (Exception exp)
{
Console.WriteLine(exp.Message);
}
}
private static async Task PlayAudioAsync(string text, NAudioAudioDataDecoder audioDecoder, TextToSpeechClient ttsClient, Voice voice)
{
using var audioStream = await ttsClient
.GetAudioDataStreamAsync(text, voice.ShortName)
.ConfigureAwait(false);
using var waveStream = audioDecoder.MakeDecodingStream(audioStream);
var sr = waveStream.WaveFormat.SampleRate;
var bps = waveStream.WaveFormat.BitsPerSample;
System.Console.Write($"{bps} * {sr} = {bps * sr}");
//await Task.Yield();
await PlayAsync(waveStream).ConfigureAwait(false);
}
public async Task DecodeAudioAsync()
{
var audioRequest = await MakeSpeechRequestAsync().ConfigureAwait(false);
var audioDecoder = new NAudioAudioDataDecoder
{
Format = audioRequest.OutputFormat
};
using var audio = await cache
.LoadAsync(audioDecoder, audioRequest)
.ConfigureAwait(false);
Assert.AreEqual(MediaType.Audio.PCMA, audio.Format.ContentType);
Assert.AreEqual(audioRequest.OutputFormat.SampleRate, audio.Format.SampleRate);
}
