/// <summary>
/// Load sound data. wavData must not contain WAV Head.
/// </summary>
/// <param name="wavBytes"></param>
/// <returns>Returns duration.</returns>
public decimal Load(byte[] wavBytes, int sampleRate, int bitsPerSample, int channelCount)
{
var format = new SharpDX.Multimedia.WaveFormat(sampleRate, bitsPerSample, channelCount);
// Create and set the buffer description.
var desc = new SoundBufferDescription();
desc.Format = format;
desc.Flags =
// Play sound even if application loses focus.
BufferFlags.GlobalFocus |
// This has to be true to use effects.
BufferFlags.ControlEffects;
desc.BufferBytes = wavBytes.Length;
// Create and set the buffer for playing the sound.
ApplicationBuffer = new SecondarySoundBuffer(ApplicationDevice, desc);
ApplicationBuffer.Write(wavBytes, 0, LockFlags.None);
var duration = AudioHelper.GetDuration(wavBytes.Length, sampleRate, bitsPerSample, channelCount);
return(duration);
}
/// <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);
}
}
}