Files
voice-cat/clients/windows/VoiceCat.App/Models/VoiceSettings.cs
Talon 2e0e0caccb feat(clients): wire RNNoise mic noise reduction into Windows, macOS, and iOS
Expose the existing send-side vc_set_input_noise_reduction C ABI (MIC-only,
mono, LOCAL — denoises captured mic PCM before input gain and VAD/PTT gate)
as a persisted global toggle in each client's audio settings, applied live
and re-applied on Join Voice. Mirrors the existing mic-gain wiring pattern.

- Shared Swift (VoiceCatCore): add setInputNoiseReduction(_:) wrapper
- Windows: P/Invoke + SetInputNoiseReduction wrapper, MicNoiseReduction in
  VoiceSettings, new checkbox in AudioSettingsForm (layout shifted +28px),
  apply on Join Voice; also fix stale 'planned - currently passthrough'
  label on the receive-side per-user NR checkbox (RNNoise now backs it)
- macOS: inputNoiseReduction state + UserDefaults in MainWindowController,
  NR checkbox + nrChanged action in SettingsWindowController
- iOS: inputNoiseReduction in VoiceState + setter + restore in SessionState,
  NR Toggle in SettingsView Voice section

Aux/screen are out of scope by design (core's NR guards kind == MIC). Apple
builds require a rebuilt VoiceCatCore.xcframework with VOICECAT_HAS_NS.
2026-06-23 14:11:18 +02:00

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C#
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using System.Text.Json;
namespace VoiceCat.App.Models;
/// <summary>
/// User's send-side voice input preferences — transmission mode, VAD sensitivity, mic input
/// gain, and the push-to-talk key. Persisted to %AppData%\VoiceCat\voice.json, same pattern as
/// <see cref="ServerListStore"/> and FeedbackSettings: a missing or corrupt file yields defaults
/// rather than throwing. Slider-position values are stored as-is so MainForm can restore the
/// TrackBars directly.
/// </summary>
public sealed class VoiceSettings
{
/// <summary>Transmission mode: 0 = voice activation, 1 = push-to-talk, 2 = always on
/// (matches Interop's VcInputMode).</summary>
public int InputMode { get; set; } = 0;
/// <summary>VAD sensitivity slider position, 1100 (default mirrors the designer's 76).</summary>
public int VadThresholdSlider { get; set; } = 76;
/// <summary>Microphone input gain slider position, 0300 percent (100 = unity).</summary>
public int MicGain { get; set; } = 100;
/// <summary>Send-side mic noise reduction (RNNoise) toggle. MIC stream only, mono only;
/// denoises captured mic PCM before input gain and VAD/PTT gate so everyone hears the
/// cleaned signal. Independent of the per-listener receive-side NR.</summary>
public bool MicNoiseReduction { get; set; } = false;
/// <summary>Push-to-talk key, stored as the integer value of System.Windows.Forms.Keys.</summary>
public int PttKey { get; set; } = (int)Keys.F8;
/// <summary>Saved device ID from the last session; null means use the system default.</summary>
public string? InputDeviceId { get; set; } = null;
/// <summary>Whether the secondary "aux" outgoing stream is enabled. The aux stream is a
/// second hardware input device the client captures itself and feeds to the core via
/// vc_stream_feed_pcm (kind = AUX_DEVICE, external_feed). Lets a user transmit e.g. mic +
/// a line-in at once.</summary>
public bool AuxEnabled { get; set; } = false;
/// <summary>WASAPI endpoint id of the aux capture device; null = system default capture
/// device. NOTE: this is a WASAPI device id (from <see cref="Audio.InputDeviceEnumerator"/>),
/// NOT a core/miniaudio id — the aux device is opened client-side, so the two id spaces differ.</summary>
public string? AuxDeviceId { get; set; } = null;
/// <summary>Aux input volume slider position, 0300 percent (100 = unity). Applied client-side
/// to the captured PCM before feeding (the core's input gain is mic-only and global).</summary>
public int AuxGain { get; set; } = 100;
private static readonly JsonSerializerOptions JsonOptions = new() { WriteIndented = true };
private static string AppDataDir => Path.Combine(
Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "VoiceCat");
private static string FilePath => Path.Combine(AppDataDir, "voice.json");
public static VoiceSettings Load()
{
try
{
if (!File.Exists(FilePath)) return new VoiceSettings();
string json = File.ReadAllText(FilePath);
return JsonSerializer.Deserialize<VoiceSettings>(json) ?? new VoiceSettings();
}
catch
{
return new VoiceSettings();
}
}
public void Save()
{
Directory.CreateDirectory(AppDataDir);
File.WriteAllText(FilePath, JsonSerializer.Serialize(this, JsonOptions));
}
}