public static async Task StartAsync()
{
waveStream.Seek(44, SeekOrigin.Begin); // Header
_output = await InitializeOutput(new AudioFormat(48000, 2, 16));
RunBufferLoop(_output.Format);
_output.Start();
}
public void Devices()
{
var output = new SoundioOutput();
for (var i = 0; i < output.Devices.Count; i++)
{
Console.WriteLine($"[{i}] {output.Devices[i].Name}");
}
output.Dispose();
}
private void InitSynthesizer(SoundIOSharp.SoundIODevice device, AudioFormat format)
{
if (Output == null)
{
Output = new SoundioOutput();
}
Output.DesiredLatency = TimeSpan.FromMilliseconds(100);
Output.Initialize(device, format);
Output.Buffer += OutputOnBuffer;
Synthesizer = new Synthesizer(format.SampleRate, 50);
}
public void Execute(string[] args)
{
Console.WriteLine();
var format = SoundioHelper.InitializeFormat(new AudioFormat(48000, 2));
Console.WriteLine();
if (!Input.InitializeInputDevice(format, args))
{
Input.InitializeInputFromConsole(format);
}
Console.WriteLine($"Input : {Input.Device.Name}, latency {Input.SoftwareLatency.TotalMilliseconds}ms");
Console.WriteLine();
if (!args.Contains("--no-out"))
{
Output = new SoundioOutput();
if (!Output.InitializeOutputDevice(format, args))
{
Output.InitializeOutputFromConsole(format);
}
Console.WriteLine($"Output : {Output.Device.Name}, latency {Output.SoftwareLatency.TotalMilliseconds}ms");
Console.WriteLine();
}
Input.Filled += InputOnFilled;
Input.Start();
Output?.Start();
Shell.Run("Passthrough", (arguments) =>
{
if (arguments.Length == 0)
{
return;
}
switch (arguments[0])
{
case "export":
ExportConfig(arguments);
break;
default:
Console.WriteLine("Unknown command");
break;
}
});
}
public static bool InitializeOutputDevice(this SoundioOutput output, AudioFormat format, string[] args)
{
var index = args.GetInt("-o", "--output");
if (index == null || index.Value >= output.Devices.Count || index.Value < 0)
{
return(false);
}
var latencyMs = args.GetDouble("--output-latency");
if (latencyMs != null)
{
output.DesiredLatency = TimeSpan.FromMilliseconds(latencyMs.Value);
}
output.Initialize(output.Devices[index.Value], format);
return(true);
}
public void Initialize(SoundIODevice device)
{
if (device is null)
{
throw new ArgumentNullException(nameof(device));
}
if (IsInitialized)
{
throw new InvalidOperationException("Output device was already initialized");
}
IsInitialized = false;
var output = new SoundioOutput();
output.Initialize(device, SharedFormat);
Output = output;
IsInitialized = true;
}
private static async Task <SoundioOutput> InitializeOutput(AudioFormat format)
{
var output = new SoundioOutput(SoundIOBackend.Alsa);
output.Underflow += OutputOnUnderflow;
output.UnderflowTimedOut += OutputOnUnderflowTimedOut;
for (int i = 0; i < output.Devices.Count; i++)
{
Console.WriteLine($"[{i}] {output.Devices[i].Name}");
}
var deviceIndex = ReadInt("Output device index : ");
output.SetDevice(output.Devices[deviceIndex], format);
output.Initialize();
Console.WriteLine($"{output.Format.SampleRate} {output.Format.Channels}");
return(output);
}
public static void InitializeOutputFromConsole(this SoundioOutput output, AudioFormat format)
{
Console.WriteLine("Output devices");
for (var i = 0; output.Devices.Count > i; i++)
{
Console.WriteLine($"[{i}] {output.Devices[i].Name}");
}
var deviceIndex = ConsoleHelper.ReadInt("Output device index > ", output.Devices.Count - 1);
var inputDevice = output.Devices[deviceIndex];
for (var i = 0; output.Devices.Count > i; i++)
{
if (i != deviceIndex)
{
output.Devices[i].RemoveReference();
}
}
output.Initialize(inputDevice, format);
}
public static async Task StartAsync()
{
input.Filled += InputOnFilled;
Console.WriteLine("Input devices");
for (var i = 0; input.Devices.Count > i; i++)
{
Console.WriteLine($"[{i}] {input.Devices[i].Name}");
}
var deviceIndex = ReadInt("Input device index : ");
var inputDevice = input.Devices[deviceIndex];
for (var i = 0; input.Devices.Count > i; i++)
{
if (i != deviceIndex)
{
input.Devices[i].RemoveReference();
}
}
AudioFormat format = new AudioFormat(48000, 2, 16);
input.SetDevice(inputDevice);
await input.InitializeAsync(format);
Console.WriteLine($"{input.Format.SampleRate} {input.Format.Channels}");
_output = await InitializeOutput(format);
_ringBuffer = new RingBuffer <byte>((uint)(format.SampleRate * format.Channels * 30));
await input.StartAsync();
_output.Start();
Console.WriteLine("Input latency : " + input.SoftwareLatency.TotalMilliseconds + " ms");
Console.WriteLine("Output latency : " + _output.SoftwareLatency.TotalMilliseconds + " ms");
}
public static async Task StartAsync()
{
input.Filled += InputOnFilled;
Console.WriteLine("Input devices");
for (var i = 0; input.Devices.Count > i; i++)
{
Console.WriteLine($"[{i}] {input.Devices[i].Name}");
}
var deviceIndex = ReadInt("Input device index : ");
var inputDevice = input.Devices[deviceIndex];
for (var i = 0; input.Devices.Count > i; i++)
{
if (i != deviceIndex)
{
input.Devices[i].RemoveReference();
}
}
AudioFormat format = new AudioFormat(48000, 2, 16);
input.SetDevice(inputDevice);
await input.InitializeAsync(format);
Console.WriteLine($"{input.Format.SampleRate} {input.Format.Channels}");
_output = await InitializeOutput(format);
await input.StartAsync();
// Console.WriteLine("Buffering started");
// Console.WriteLine("Press any key to start playback...");
// Console.ReadKey();
_output.Start();
}
static void Main(string[] args)
{
var output = new SoundioOutput();
for (var i = 0; i < output.Devices.Count; i++)
{
Console.WriteLine($"[{i}] {output.Devices[i].Name}");
}
Console.Write("Device Index > ");
var outputIndex = int.Parse(Console.ReadLine());
Console.Write("Latency(ms) > ");
var intervalMs = Double.Parse(Console.ReadLine());
output.DesiredLatency = TimeSpan.FromMilliseconds(intervalMs);
output.Initialize(output.Devices[outputIndex], new AudioFormat(48000, 1, 16));
Output = output;
Console.WriteLine("Output device initialized");
Console.WriteLine($"Actual Latency : {output.ActualLatency.TotalMilliseconds}ms");
Source = new PeriodicFunctionsSource(output.Format.SampleRate)
{
Function = FunctionType.Sin,
Volume = 1,
};
var midi = new MidiPlayer(output.Format.SampleRate, new Synthesizer(output.Format.SampleRate));
midi.OscillatorConfigs.Add(new Oscillator()
{
Function = KSynthesizer.Sources.FunctionType.Sin, Volume = 0.3f
});
midi.Open(MidiFile.Read("sample.mid"));
Source.SetFrequency(Frequency);
RecordFilter = new RecordFilter(midi);
Output.Buffer += OutputOnBuffer;
Output.Play();
Console.WriteLine("Player started");
bool exit = false;
while (!exit)
{
var key = Console.ReadKey();
Console.WriteLine();
switch (key.Key)
{
case ConsoleKey.P:
Playing = !Playing;
Console.WriteLine(Playing ? "Resumed" : "Paused");
break;
case ConsoleKey.R:
if (RecordFilter.IsRecording)
{
RecordFilter.StopRecording();
}
else
{
var now = DateTime.Now;
var name = $"{now.Ticks}.wav";
RecordFilter.StartRecording(new FileStream(name, FileMode.Create, FileAccess.Write), true, false);
Console.WriteLine("Output : " + name);
}
Console.WriteLine(RecordFilter.IsRecording ? "Recording Started" : "Recording Stopped");
break;
case ConsoleKey.UpArrow:
Frequency += 100;
Source.SetFrequency(Frequency);
Console.WriteLine($"Frequency : {Frequency}Hz");
break;
case ConsoleKey.DownArrow:
Frequency -= 100;
if (Frequency <= 300)
{
Frequency = 300;
}
Source.SetFrequency(Frequency);
Console.WriteLine($"Frequency : {Frequency}Hz");
break;
case ConsoleKey.Escape:
exit = true;
break;
default:
Console.WriteLine("Unknown Key");
break;
}
}
output.Dispose();
Console.WriteLine("Exited");
}
private bool InitAudio(string[] args, bool noShell)
{
var path = args.GetString("--audio");
AudioConfig audio;
try
{
using var sr = new StreamReader(path);
audio = AudioConfig.Deserialize(sr.ReadToEnd());
}
catch (Exception ex)
{
Console.WriteLine(ex);
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine("Failed to open the audio configuration file");
Console.ResetColor();
return(false);
}
Input = new SoundioInput();
SoundIODevice inputDevice = null;
foreach (var device in Input.Devices)
{
if (device.Name == audio.InputDevice)
{
inputDevice = device;
break;
}
}
if (inputDevice != null)
{
Input.Initialize(inputDevice, audio.Format);
SayInitialized($"Input {inputDevice.Name}, latency {Input.SoftwareLatency.TotalMilliseconds}ms");
}
else
{
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine($"Input device was not found ({audio.InputDevice})");
Console.ResetColor();
return(false);
}
if (audio.OutputDevice != null)
{
SoundIODevice outputDevice = null;
Output = new SoundioOutput();
foreach (var device in Output.Devices)
{
if (device.Name == audio.OutputDevice)
{
outputDevice = device;
break;
}
}
if (outputDevice != null)
{
Output.Initialize(outputDevice, audio.Format);
SayInitialized($"Output {outputDevice.Name}, latency {Output.SoftwareLatency.TotalMilliseconds}ms");
}
else
{
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine($"Output device was not found ({audio.OutputDevice})");
Console.ResetColor();
if (noShell)
{
return(false);
}
else
{
return(ConsoleHelper.ReadYesNo("Proceed anyway? [yes/no] > "));
}
}
}
return(true);
}