Start() public méthode

Start audio source.
Starts audio source and return execution to caller. audio source object creates background thread and notifies about new frames with the help of DataAvailable event.
audio source is not specified.
public Start ( ) : void
Résultat void
DirectStream Class Documentation
Exemple #1
0
        private static void SynthToCam(string text, CameraWindow cw)
        {
            var synthFormat = new System.Speech.AudioFormat.SpeechAudioFormatInfo(System.Speech.AudioFormat.EncodingFormat.Pcm, 11025, 16, 1, 22100, 2, null);
            using (var synthesizer = new SpeechSynthesizer())
            {
                using (var waveStream = new MemoryStream())
                {

                    //write some silence to the stream to allow camera to initialise properly
                    var silence = new byte[1 * 22050];
                    waveStream.Write(silence, 0, silence.Length);

                    var pbuilder = new PromptBuilder();
                    var pStyle = new PromptStyle
                    {
                        Emphasis = PromptEmphasis.Strong,
                        Rate = PromptRate.Slow,
                        Volume = PromptVolume.ExtraLoud
                    };

                    pbuilder.StartStyle(pStyle);
                    pbuilder.StartParagraph();
                    pbuilder.StartVoice(VoiceGender.Male, VoiceAge.Adult, 2);
                    pbuilder.StartSentence();
                    pbuilder.AppendText(text);
                    pbuilder.EndSentence();
                    pbuilder.EndVoice();
                    pbuilder.EndParagraph();
                    pbuilder.EndStyle();

                    synthesizer.SetOutputToAudioStream(waveStream, synthFormat);
                    synthesizer.Speak(pbuilder);
                    synthesizer.SetOutputToNull();

                    //write some silence to the stream to allow camera to end properly
                    waveStream.Write(silence, 0, silence.Length);
                    waveStream.Seek(0, SeekOrigin.Begin);

                    var ds = new DirectStream(waveStream) { RecordingFormat = new WaveFormat(11025, 16, 1) };
                    var talkTarget = TalkHelper.GetTalkTarget(cw.Camobject, ds); 
                    ds.Start();
                    talkTarget.Start();
                    while (ds.IsRunning)
                    {
                        Thread.Sleep(100);
                    }
                    ds.Stop();
                    talkTarget.Stop();
                    talkTarget = null;
                    ds = null;
                }
            }


        }
Exemple #2
0
        private static void SynthToCam(string fileName, CameraWindow cw)
        {
            using (var waveStream = new MemoryStream())
            {

                //write some silence to the stream to allow camera to initialise properly
                var silence = new byte[1 * 22050];
                waveStream.Write(silence, 0, silence.Count());

                //read in and convert the wave stream into our format
                var reader = new WaveFileReader(fileName);
                
                var newFormat = new WaveFormat(11025, 16, 1);
                byte[] buff = new byte[22050];
                    
                using (var conversionStream = new WaveFormatConversionStream(newFormat, reader))
                {
                    do
                    {
                        int i = conversionStream.Read(buff, 0, 22050);
                        waveStream.Write(buff, 0, i);
                        if (i < 22050)
                            break;
                    } while (true);
                }
                


                //write some silence to the stream to allow camera to end properly
                waveStream.Write(silence, 0, silence.Count());

                waveStream.Seek(0, SeekOrigin.Begin);

                var ds = new DirectStream(waveStream) { RecordingFormat = new WaveFormat(11025, 16, 1) };
                var talkTarget = TalkHelper.GetTalkTarget(cw.Camobject, ds); 
                ds.Start();
                talkTarget.Start();
                while (ds.IsRunning)
                {
                    Thread.Sleep(100);
                }
                ds.Stop();
                talkTarget.Stop();
                talkTarget = null;
                ds = null;
            }


        }