C# XAudio2.Dispose方法代碼示例

        /// <summary>
        /// SharpDX XAudio2 sample. Plays wav/xwma/adpcm files from the disk.
        /// </summary>
        static void Main(string[] args)
        {
            var xaudio2 = new XAudio2();
            var masteringVoice = new MasteringVoice(xaudio2);

            PLaySoundFile(xaudio2, "1) Playing a standard WAV file", "ergon.wav");
            PLaySoundFile(xaudio2, "2) Playing a XWMA file", "ergon.xwma");
            PLaySoundFile(xaudio2, "3) Playing an ADPCM file", "ergon.adpcm.wav");

            masteringVoice.Dispose();
            xaudio2.Dispose();
        }

        public static void Main(string[] args)
        {
            xaudio2 = new XAudio2();
            xaudio2.StartEngine();
            var masteringVoice = new MasteringVoice(xaudio2);

            if (!string.IsNullOrEmpty(Properties.Settings.Default.BackgroundMusicPath) &&
                Directory.Exists(Properties.Settings.Default.BackgroundMusicPath))
            {
                var musicFiles = Directory.GetFiles(Properties.Settings.Default.BackgroundMusicPath, "*.wav");
                if(musicFiles.Length > 0)
                    backgroundPlayer = new TrackPlayer(xaudio2, musicFiles);
            }

            var listener = new UdpClient(10009);
            listener.BeginReceive(new AsyncCallback(ReceiveCallback), listener);

            effectManager = new EffectManager(xaudio2, 4, Properties.Settings.Default.FXPath);

            // Wait until its done
            int count = 1;
            while (true)
            {
                Thread.Sleep(10);

                if (Console.KeyAvailable)
                {
                    var key = Console.ReadKey();
                    if (key.Key == ConsoleKey.Escape)
                        break;

                    switch (key.Key)
                    {
                        case ConsoleKey.A:
                            effectManager.Play("Scream.wav");
                            break;
                        case ConsoleKey.B:
                            effectManager.Play("Violin screech.wav");
                            break;
                        case ConsoleKey.N:
                            if(backgroundPlayer != null)
                                backgroundPlayer.NextTrack();
                            break;
                        case ConsoleKey.V:
                            if (key.Modifiers.HasFlag(ConsoleModifiers.Shift))
                                backgroundVolume -= 0.1f;
                            else
                                backgroundVolume += 0.1f;

                            if (backgroundVolume < 0f)
                                backgroundVolume = 0f;
                            if (backgroundVolume > 1f)
                                backgroundVolume = 1f;
                            break;
                    }
                }

                var muteMusic = effectManager.AreAnyPlaying && autoMuteBackground ? 0.2f : 0f;
                if (backgroundPlayer != null)
                    backgroundPlayer.Volume = backgroundVolume - muteMusic;

                if (count % 50 == 0)
                {
                    Console.Write(".");
                    Console.Out.Flush();
                }

                Thread.Sleep(10);
                count++;
            }

            listener.Close();

            if (backgroundPlayer != null)
                backgroundPlayer.Stop();
            if (trackPlayer != null)
                trackPlayer.Stop();

            effectManager.Dispose();

            Thread.Sleep(500);

            masteringVoice.Dispose();
            xaudio2.StopEngine();
            xaudio2.Dispose();
        }

        static SoundEffect()
        {
            var flags = XAudio2Flags.None;

#if !WINRT && DEBUG
            flags |= XAudio2Flags.DebugEngine;
#endif
            try
            {
                // This cannot fail.
                Device = new XAudio2(flags, ProcessorSpecifier.DefaultProcessor);

                Device.StartEngine();

                // Just use the default device.
#if WINRT
                string deviceId = null;
#else
                const int deviceId = 0;
#endif

                // Let windows autodetect number of channels and sample rate.
                MasterVoice = new MasteringVoice(Device, XAudio2.DefaultChannels, XAudio2.DefaultSampleRate, deviceId);            
                MasterVoice.SetVolume(_masterVolume, 0);

                // The autodetected value of MasterVoice.ChannelMask corresponds to the speaker layout.
#if WINRT
                Speakers = (Speakers)MasterVoice.ChannelMask;
#else
                var deviceDetails = Device.GetDeviceDetails(deviceId);
                Speakers = deviceDetails.OutputFormat.ChannelMask;
#endif
            }
            catch
            {
                // Release the device and null it as
                // we have no audio support.
                if (Device != null)
                {
                    Device.Dispose();
                    Device = null;
                }

                MasterVoice = null;
            }

        }

        static SoundEffect()
        {
            // This cannot fail.
            Device = new XAudio2();

            try
            {
                Device.StartEngine();

                // Let windows autodetect number of channels and sample rate.
                MasterVoice = new MasteringVoice(Device, XAudio2.DefaultChannels, XAudio2.DefaultSampleRate);            
                MasterVoice.SetVolume(_masterVolume, 0);

                // The autodetected value of MasterVoice.ChannelMask corresponds to the speaker layout.
                Speakers = (Speakers)MasterVoice.ChannelMask;
            }
            catch
            {
                // Release the device and null it as
                // we have no audio support.
                Device.Dispose();
                Device = null;
                MasterVoice = null;
            }

        }