Talon
f72219ddf3
Both desktop mics were hard-mono: the core defaults capture_channels=1 and neither client ever called vc_set_capture_channels (only iOS did). Add a persisted "Stereo microphone" toggle to each client's Audio settings, applied when the mic stream starts and live via vc_set_capture_channels + vc_audio_restart. Expose both ABI calls in the Windows interop; the macOS wrapper already had them. Core fix: encode_and_send_frame now folds a stereo mic frame to mono on a mono channel - previously the channels==2 branch encoded interleaved L/R directly even on a mono channel, feeding a mono opus_encode 2x its samples (wrong pitch/garbage). Real stereo still only reaches the wire on a stereo channel; on a mono channel the mic is cleanly downmixed. Test: test_stereo_mic_mono_channel. ctest --preset dev green (28/28). Docs: voice.md. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
550 lines
21 KiB
C#
550 lines
21 KiB
C#
using System.ComponentModel;
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using VoiceCat.App.Audio;
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using VoiceCat.App.Models;
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using VoiceCat.Interop;
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namespace VoiceCat.App.Forms;
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/// <summary>
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/// Edits audio input settings: device selection, transmission mode (VAD/PTT/always-on),
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/// VAD sensitivity, mic gain, and PTT key. Changes are applied live to the client for
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/// immediate feedback; Cancel reverts them.
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/// </summary>
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public sealed class AudioSettingsForm : Form
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{
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private readonly VoiceCatClient _client;
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private readonly VoiceSettings _settings;
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private readonly uint _micStreamId;
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// Aux-stream live-apply callbacks, supplied by MainForm (which owns the aux capture). Null
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// when not connected — the controls still edit settings, just without live effect.
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private readonly Action<bool>? _applyAuxEnabled;
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private readonly Action<string?>? _applyAuxDevice;
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private readonly Action<float>? _applyAuxGain;
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// Snapshot of original values so Cancel can restore them
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private readonly string? _origDeviceId;
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private readonly VcInputMode _origMode;
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private readonly int _origVadSlider;
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private readonly int _origMicGain;
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private readonly bool _origMicNoiseReduction;
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private readonly bool _origStereoMic;
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private readonly Keys _origPttKey;
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private readonly bool _origAuxEnabled;
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private readonly string? _origAuxDeviceId;
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private readonly int _origAuxGain;
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private readonly ComboBox _cboDevice;
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private readonly Button _btnRefresh;
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private readonly RadioButton _radioVad;
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private readonly RadioButton _radioPtt;
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private readonly RadioButton _radioAlwaysOn;
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private readonly Label _lblPttKey;
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private readonly Button _btnChangePtt;
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private readonly Label _lblSensitivity;
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private readonly TrackBar _trkVad;
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private readonly TrackBar _trkGain;
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private readonly CheckBox _chkNoiseReduction;
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private readonly CheckBox _chkStereoMic;
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private readonly CheckBox _chkAux;
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private readonly Label _lblAuxDevice;
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private readonly ComboBox _cboAuxDevice;
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private readonly Button _btnAuxRefresh;
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private readonly Label _lblAuxGain;
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private readonly TrackBar _trkAuxGain;
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private Keys _pttKey;
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public AudioSettingsForm(VoiceCatClient client, VoiceSettings settings, uint micStreamId,
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Action<bool>? applyAuxEnabled = null, Action<string?>? applyAuxDevice = null,
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Action<float>? applyAuxGain = null)
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{
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_client = client;
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_settings = settings;
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_micStreamId = micStreamId;
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_applyAuxEnabled = applyAuxEnabled;
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_applyAuxDevice = applyAuxDevice;
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_applyAuxGain = applyAuxGain;
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_pttKey = (Keys)settings.PttKey;
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_origDeviceId = settings.InputDeviceId;
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_origMode = (VcInputMode)settings.InputMode;
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_origVadSlider = settings.VadThresholdSlider;
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_origMicGain = settings.MicGain;
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_origMicNoiseReduction = settings.MicNoiseReduction;
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_origStereoMic = settings.StereoMic;
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_origPttKey = _pttKey;
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_origAuxEnabled = settings.AuxEnabled;
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_origAuxDeviceId = settings.AuxDeviceId;
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_origAuxGain = settings.AuxGain;
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Text = "Audio settings";
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FormBorderStyle = FormBorderStyle.FixedDialog;
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MaximizeBox = false;
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MinimizeBox = false;
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StartPosition = FormStartPosition.CenterParent;
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AutoScaleMode = AutoScaleMode.Font;
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ClientSize = new Size(420, 611);
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// ── Device row ────────────────────────────────────────────────────────
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var lblDevice = new Label
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{
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Text = "Input &device:",
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Location = new Point(12, 16),
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AutoSize = true,
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};
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_cboDevice = new ComboBox
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{
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Location = new Point(12, 36),
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Width = 300,
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DropDownStyle = ComboBoxStyle.DropDownList,
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DisplayMember = "Name",
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ValueMember = "Id",
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AccessibleName = "Input device",
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AccessibleDescription = "Select which microphone or audio input device to use.",
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};
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_cboDevice.SelectedIndexChanged += CboDevice_SelectedIndexChanged;
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_btnRefresh = new Button
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{
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Text = "&Refresh",
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Location = new Point(320, 34),
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Size = new Size(80, 26),
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};
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_btnRefresh.Click += (_, _) => LoadDevices();
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// ── Transmission mode ─────────────────────────────────────────────────
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var lblMode = new Label
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{
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Text = "Transmission mode:",
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Location = new Point(12, 76),
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AutoSize = true,
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};
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_radioVad = new RadioButton
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{
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Text = "&Voice activation",
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Location = new Point(20, 96),
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AutoSize = true,
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};
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_radioVad.CheckedChanged += RadioMode_CheckedChanged;
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_lblSensitivity = new Label
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{
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Text = "Sensitivity:",
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Location = new Point(36, 122),
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AutoSize = true,
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};
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_trkVad = new TrackBar
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{
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Location = new Point(36, 140),
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Size = new Size(200, 45),
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Minimum = 1,
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Maximum = 100,
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TickFrequency = 10,
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SmallChange = 1,
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LargeChange = 10,
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Value = Math.Clamp(settings.VadThresholdSlider, 1, 100),
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};
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_trkVad.AccessibleName = "VAD sensitivity";
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_trkVad.AccessibleDescription =
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"Voice detection sensitivity. Higher = more sensitive. Range 1–100.";
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_trkVad.Scroll += TrkVad_Scroll;
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_radioPtt = new RadioButton
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{
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Text = "&Push to talk",
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Location = new Point(20, 192),
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AutoSize = true,
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};
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_radioPtt.CheckedChanged += RadioMode_CheckedChanged;
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_lblPttKey = new Label
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{
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Location = new Point(140, 194),
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AutoSize = true,
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};
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_btnChangePtt = new Button
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{
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Text = "Change key...",
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Location = new Point(200, 189),
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Size = new Size(105, 26),
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};
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_btnChangePtt.Click += BtnChangePtt_Click;
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_radioAlwaysOn = new RadioButton
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{
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Text = "A&lways on",
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Location = new Point(20, 224),
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AutoSize = true,
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};
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_radioAlwaysOn.CheckedChanged += RadioMode_CheckedChanged;
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// ── Mic gain ──────────────────────────────────────────────────────────
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var lblGain = new Label
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{
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Text = "Microphone &volume:",
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Location = new Point(12, 268),
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AutoSize = true,
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};
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_trkGain = new TrackBar
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{
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Location = new Point(12, 288),
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Size = new Size(200, 45),
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Minimum = 0,
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Maximum = 300,
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TickFrequency = 25,
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SmallChange = 5,
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LargeChange = 25,
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Value = Math.Clamp(settings.MicGain, 0, 300),
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};
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_trkGain.AccessibleName = "Microphone volume";
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_trkGain.AccessibleDescription =
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"Boost a quiet microphone. 100 is unity gain; range 0–300 percent.";
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_trkGain.Scroll += TrkGain_Scroll;
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// ── Mic noise reduction ───────────────────────────────────────────────
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// Send-side RNNoise denoise of the mic stream. MIC-only (the core's NR runs before
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// the input gain and VAD/PTT gate; aux/screen are excluded). One pass for all listeners.
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_chkNoiseReduction = new CheckBox
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{
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Text = "Noise &reduction (RNNoise)",
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Location = new Point(12, 340),
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AutoSize = true,
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Checked = settings.MicNoiseReduction,
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AccessibleName = "Microphone noise reduction",
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AccessibleDescription =
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"RNNoise denoising of your microphone. Cleans your signal for everyone listening.",
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};
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_chkNoiseReduction.CheckedChanged += ChkNoiseReduction_CheckedChanged;
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// ── Stereo microphone ─────────────────────────────────────────────────
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// Opens the mic capture device in stereo (interleaved L/R) instead of mono. Real stereo
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// only reaches the wire on a stereo channel; the core folds a stereo mic to mono on a mono
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// channel. Toggling while connected restarts the capture device (vc_audio_restart) so the
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// new channel count takes effect immediately.
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_chkStereoMic = new CheckBox
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{
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Text = "&Stereo microphone",
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Location = new Point(12, 364),
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AutoSize = true,
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Checked = settings.StereoMic,
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AccessibleName = "Stereo microphone",
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AccessibleDescription =
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"Capture your microphone in stereo. Only transmitted in stereo on a stereo channel.",
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};
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_chkStereoMic.CheckedChanged += ChkStereoMic_CheckedChanged;
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// ── Aux input stream ──────────────────────────────────────────────────
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// A second outgoing stream from another hardware input device (e.g. line-in / aux),
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// captured client-side and fed to the core. Device + volume only — aux is always-on
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// (the core never gates AUX_DEVICE on VAD/PTT).
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_chkAux = new CheckBox
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{
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Text = "&Aux stream (second input device)",
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Location = new Point(12, 404),
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AutoSize = true,
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Checked = settings.AuxEnabled,
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AccessibleName = "Enable aux input stream",
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AccessibleDescription =
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"Transmit a second hardware input device alongside your microphone.",
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};
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_chkAux.CheckedChanged += ChkAux_CheckedChanged;
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_lblAuxDevice = new Label
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{
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Text = "Aux d&evice:",
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Location = new Point(12, 434),
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AutoSize = true,
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};
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_cboAuxDevice = new ComboBox
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{
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Location = new Point(12, 454),
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Width = 300,
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DropDownStyle = ComboBoxStyle.DropDownList,
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DisplayMember = "Name",
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ValueMember = "Id",
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AccessibleName = "Aux input device",
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AccessibleDescription = "Select the second audio input device to transmit.",
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};
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_cboAuxDevice.SelectedIndexChanged += CboAuxDevice_SelectedIndexChanged;
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_btnAuxRefresh = new Button
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{
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Text = "Re&fresh",
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Location = new Point(320, 452),
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Size = new Size(80, 26),
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};
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_btnAuxRefresh.Click += (_, _) => LoadAuxDevices();
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_lblAuxGain = new Label
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{
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Text = "Aux vo&lume:",
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Location = new Point(12, 490),
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AutoSize = true,
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};
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_trkAuxGain = new TrackBar
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{
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Location = new Point(12, 510),
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Size = new Size(200, 45),
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Minimum = 0,
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Maximum = 300,
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TickFrequency = 25,
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SmallChange = 5,
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LargeChange = 25,
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Value = Math.Clamp(settings.AuxGain, 0, 300),
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};
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_trkAuxGain.AccessibleName = "Aux volume";
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_trkAuxGain.AccessibleDescription =
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"Volume of the aux input stream. 100 is unity gain; range 0–300 percent.";
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_trkAuxGain.Scroll += TrkAuxGain_Scroll;
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// ── OK / Cancel ───────────────────────────────────────────────────────
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var btnOk = new Button
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{
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Text = "&OK",
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DialogResult = DialogResult.OK,
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Location = new Point(228, 572),
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Size = new Size(80, 27),
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};
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var btnCancel = new Button
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{
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Text = "&Cancel",
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DialogResult = DialogResult.Cancel,
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Location = new Point(316, 572),
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Size = new Size(80, 27),
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};
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AcceptButton = btnOk;
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CancelButton = btnCancel;
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btnOk.Click += (_, _) =>
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{
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_settings.Save();
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};
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FormClosing += AudioSettingsForm_FormClosing;
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Controls.AddRange([
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lblDevice, _cboDevice, _btnRefresh,
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lblMode, _radioVad, _lblSensitivity, _trkVad,
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_radioPtt, _lblPttKey, _btnChangePtt, _radioAlwaysOn,
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lblGain, _trkGain, _chkNoiseReduction, _chkStereoMic,
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_chkAux, _lblAuxDevice, _cboAuxDevice, _btnAuxRefresh, _lblAuxGain, _trkAuxGain,
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btnOk, btnCancel,
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]);
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// Apply saved mode (fires RadioMode_CheckedChanged which sets visibility)
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switch ((VcInputMode)settings.InputMode)
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{
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case VcInputMode.PushToTalk: _radioPtt.Checked = true; break;
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case VcInputMode.AlwaysOn: _radioAlwaysOn.Checked = true; break;
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default: _radioVad.Checked = true; break;
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}
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LoadDevices();
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LoadAuxDevices();
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UpdateAuxControlsEnabled();
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}
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private void LoadDevices()
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{
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string? currentId = (_cboDevice.SelectedItem as DeviceInfo)?.Id ?? _settings.InputDeviceId;
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var devices = _client.ListDevices(VcDeviceKind.Input);
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_cboDevice.SelectedIndexChanged -= CboDevice_SelectedIndexChanged;
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_cboDevice.DataSource = new BindingList<DeviceInfo>(devices);
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_cboDevice.SelectedIndexChanged += CboDevice_SelectedIndexChanged;
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// Try to restore previous selection
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int idx = -1;
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if (currentId is not null)
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idx = devices.FindIndex(d => d.Id == currentId);
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if (idx < 0)
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idx = devices.FindIndex(d => d.IsDefault);
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_cboDevice.SelectedIndex = idx >= 0 ? idx : (devices.Count > 0 ? 0 : -1);
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}
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private void CboDevice_SelectedIndexChanged(object? sender, EventArgs e)
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{
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if (_cboDevice.SelectedItem is not DeviceInfo dev) return;
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_settings.InputDeviceId = dev.IsDefault ? null : dev.Id;
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if (_micStreamId != 0)
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_client.SetInputDevice(_micStreamId, dev.IsDefault ? null : dev.Id);
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}
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// ── Aux input stream ──────────────────────────────────────────────────────
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private void LoadAuxDevices()
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{
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string? currentId = (_cboAuxDevice.SelectedItem as InputDeviceInfo)?.Id
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?? _settings.AuxDeviceId;
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var devices = InputDeviceEnumerator.List().ToList();
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// Set the data source AND restore the selection while unsubscribed so neither the initial
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// populate nor a Refresh fires a spurious device-change (which would restart the capture).
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_cboAuxDevice.SelectedIndexChanged -= CboAuxDevice_SelectedIndexChanged;
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_cboAuxDevice.DataSource = new BindingList<InputDeviceInfo>(devices);
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int idx = -1;
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if (currentId is not null)
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idx = devices.FindIndex(d => d.Id == currentId);
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if (idx < 0)
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idx = devices.FindIndex(d => d.IsDefault);
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_cboAuxDevice.SelectedIndex = idx >= 0 ? idx : (devices.Count > 0 ? 0 : -1);
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_cboAuxDevice.SelectedIndexChanged += CboAuxDevice_SelectedIndexChanged;
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// Persist the resolved selection (null = default) so Join Voice opens the same device.
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if (_cboAuxDevice.SelectedItem is InputDeviceInfo dev)
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_settings.AuxDeviceId = dev.IsDefault ? null : dev.Id;
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}
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private void ChkAux_CheckedChanged(object? sender, EventArgs e)
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{
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_settings.AuxEnabled = _chkAux.Checked;
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UpdateAuxControlsEnabled();
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_applyAuxEnabled?.Invoke(_chkAux.Checked);
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}
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private void CboAuxDevice_SelectedIndexChanged(object? sender, EventArgs e)
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{
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if (_cboAuxDevice.SelectedItem is not InputDeviceInfo dev) return;
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_settings.AuxDeviceId = dev.IsDefault ? null : dev.Id;
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if (_chkAux.Checked)
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_applyAuxDevice?.Invoke(dev.IsDefault ? null : dev.Id);
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}
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private void TrkAuxGain_Scroll(object? sender, EventArgs e)
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{
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_settings.AuxGain = _trkAuxGain.Value;
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if (_chkAux.Checked)
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_applyAuxGain?.Invoke(_trkAuxGain.Value / 100f);
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}
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private void UpdateAuxControlsEnabled()
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{
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bool on = _chkAux.Checked;
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_lblAuxDevice.Enabled = on;
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_cboAuxDevice.Enabled = on;
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_btnAuxRefresh.Enabled = on;
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_lblAuxGain.Enabled = on;
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_trkAuxGain.Enabled = on;
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}
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private void RadioMode_CheckedChanged(object? sender, EventArgs e)
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{
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var mode = CurrentMode();
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bool isVad = mode == VcInputMode.VoiceActivation;
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bool isPtt = mode == VcInputMode.PushToTalk;
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_lblSensitivity.Visible = isVad;
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_trkVad.Visible = isVad;
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_lblPttKey.Visible = isPtt;
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_btnChangePtt.Visible = isPtt;
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UpdatePttKeyLabel();
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_settings.InputMode = (int)mode;
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if (_micStreamId != 0)
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{
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_client.SetInputMode(mode);
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if (isVad) _client.SetVadThreshold(VadThresholdFromSlider());
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if (isPtt) _client.SetPushToTalk(false);
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}
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}
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private void TrkVad_Scroll(object? sender, EventArgs e)
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{
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_settings.VadThresholdSlider = _trkVad.Value;
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if (_micStreamId != 0 && CurrentMode() == VcInputMode.VoiceActivation)
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_client.SetVadThreshold(VadThresholdFromSlider());
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}
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private void TrkGain_Scroll(object? sender, EventArgs e)
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{
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_settings.MicGain = _trkGain.Value;
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if (_micStreamId != 0)
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_client.SetInputGain(_trkGain.Value / 100f);
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}
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private void ChkNoiseReduction_CheckedChanged(object? sender, EventArgs e)
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{
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_settings.MicNoiseReduction = _chkNoiseReduction.Checked;
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if (_micStreamId != 0)
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_client.SetInputNoiseReduction(_chkNoiseReduction.Checked);
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}
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private void ChkStereoMic_CheckedChanged(object? sender, EventArgs e)
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{
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_settings.StereoMic = _chkStereoMic.Checked;
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// Channel count only takes effect when the capture device (re)starts, so restart it live.
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if (_micStreamId != 0)
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{
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_client.SetCaptureChannels(_micStreamId, _chkStereoMic.Checked ? 2u : 1u);
|
||
_client.AudioRestart();
|
||
}
|
||
}
|
||
|
||
private void BtnChangePtt_Click(object? sender, EventArgs e)
|
||
{
|
||
using var dlg = new PttKeyCaptureDialog(_pttKey);
|
||
if (dlg.ShowDialog(this) == DialogResult.OK)
|
||
{
|
||
_pttKey = dlg.CapturedKey;
|
||
_settings.PttKey = (int)_pttKey;
|
||
UpdatePttKeyLabel();
|
||
}
|
||
}
|
||
|
||
private void AudioSettingsForm_FormClosing(object? sender, FormClosingEventArgs e)
|
||
{
|
||
if (DialogResult == DialogResult.OK) return;
|
||
|
||
// Cancel: restore originals to settings and live client
|
||
_settings.InputDeviceId = _origDeviceId;
|
||
_settings.InputMode = (int)_origMode;
|
||
_settings.VadThresholdSlider = _origVadSlider;
|
||
_settings.MicGain = _origMicGain;
|
||
_settings.MicNoiseReduction = _origMicNoiseReduction;
|
||
_settings.StereoMic = _origStereoMic;
|
||
_settings.PttKey = (int)_origPttKey;
|
||
|
||
if (_micStreamId != 0)
|
||
{
|
||
_client.SetInputDevice(_micStreamId, _origDeviceId);
|
||
_client.SetInputMode(_origMode);
|
||
if (_origMode == VcInputMode.VoiceActivation)
|
||
_client.SetVadThreshold(0.1f * (1f - (_origVadSlider - 1f) / 99f));
|
||
_client.SetInputGain(_origMicGain / 100f);
|
||
_client.SetInputNoiseReduction(_origMicNoiseReduction);
|
||
// Restore capture channel count; restart the device only if it actually changed.
|
||
if (_origStereoMic != _chkStereoMic.Checked)
|
||
{
|
||
_client.SetCaptureChannels(_micStreamId, _origStereoMic ? 2u : 1u);
|
||
_client.AudioRestart();
|
||
}
|
||
}
|
||
|
||
// Aux: restore originals to settings and re-apply live (order: device + gain first so a
|
||
// re-enable starts with the right configuration).
|
||
_settings.AuxEnabled = _origAuxEnabled;
|
||
_settings.AuxDeviceId = _origAuxDeviceId;
|
||
_settings.AuxGain = _origAuxGain;
|
||
_applyAuxDevice?.Invoke(_origAuxDeviceId);
|
||
_applyAuxGain?.Invoke(_origAuxGain / 100f);
|
||
_applyAuxEnabled?.Invoke(_origAuxEnabled);
|
||
}
|
||
|
||
private void UpdatePttKeyLabel() =>
|
||
_lblPttKey.Text = $"({_pttKey})";
|
||
|
||
private VcInputMode CurrentMode() =>
|
||
_radioPtt.Checked ? VcInputMode.PushToTalk :
|
||
_radioAlwaysOn.Checked ? VcInputMode.AlwaysOn :
|
||
VcInputMode.VoiceActivation;
|
||
|
||
private float VadThresholdFromSlider() =>
|
||
0.1f * (1f - (_trkVad.Value - 1f) / 99f);
|
||
}
|