public class AudioBot
    {
        public DiscordSocketClient AudioClient;
        public Random RNG = new Random();
        public char Prefix = '$';
        public async Task MessageHandler(SocketMessage s)
        {
            if (s.Content.StartsWith($"{Prefix}join"))
            {
                IAudioClient aic = null;
                int blockSize = 1920 * 2;
                byte[] buffer = new byte[blockSize];
                int byteCount;
                var output = new FileStream("pcm.dat", FileMode.Open, FileAccess.Read);
                if ((s.Author as IGuildUser)?.VoiceChannel == null)
                    await s.Channel.SendMessageAsync("Join a voice channel first.");
                else aic = await AudioClient.Guilds.FirstOrDefault().VoiceChannels.FirstOrDefault().ConnectAsync();
                var discord = aic.CreatePCMStream(AudioApplication.Mixed, 1920 * 2);
                while (true)
                {
                    byteCount = await output.ReadAsync(buffer, 0, blockSize);
                    if (byteCount == 0)
                        break;
                    await discord.WriteAsync(buffer, 0, buffer.Length);
                }
                await discord.FlushAsync();
            }
        }
        public async Task Start()
        {
            Console.ForegroundColor = ConsoleColor.Yellow;
            AudioClient = new DiscordSocketClient(new DiscordSocketConfig() { WebSocketProvider = Discord.Net.Providers.WS4Net.WS4NetProvider.Instance });
            await AudioClient.LoginAsync(TokenType.Bot, File.ReadAllText("t"));
            AudioClient.Log += l => Console.Out.WriteLineAsync(l.ToString());
            AudioClient.MessageReceived += MessageHandler;
            await AudioClient.StartAsync();
            await AudioClient.SetGameAsync("$join");
            await Task.Delay(-1);
        }
    }
    public class Program
    {
        static void Main(string[] args) => new AudioBot().Start().GetAwaiter().GetResult();
    }