PTT was focus-scoped (WinForms KeyDown/KeyUp) so it died the moment the
window lost focus. Add an optional system-wide path using the Raw Input
API (RegisterRawInputDevices + WM_INPUT with RIDEV_INPUTSINK) instead of
a WH_KEYBOARD_LL low-level hook -- the latter is the keylogger pattern AV
heuristics flag, which is worse for our unsigned MinGW binary. Raw Input
involves no DLL injection or global hook and passes keys through.
- New VoiceCat.App/Native/RawInput.cs: P/Invoke + structs; register the
keyboard sink, decode WM_INPUT to vkey/up-down, GetAsyncKeyState helper.
- MainForm overrides OnHandleCreated/OnHandleDestroyed/WndProc to manage
the sink and route WM_INPUT to PTT; gates the focus-scoped KeyDown/KeyUp
off when system-wide is on; makes the Deactivate force-release
conditional; adds a GetAsyncKeyState watchdog on the pump timer so a
missed key-up (RDP/lock-screen) cannot leave PTT stuck.
- VoiceSettings.SystemWidePtt (default ON) + system-wide checkbox in the
Audio settings PTT section.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Mic input gain (was 3x) and per-user receive gain (was 2x) had
asymmetric boost ceilings. Raise both, plus the desktop aux input
gain (was 3x), to a uniform 4x (400%) on macOS, iOS, and Windows.
The master Output volume slider is unchanged (still 1x). No core
changes needed: the C ABI only clamps negatives, so the ceilings
live entirely in the client UI sliders.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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>
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.
Lets a user transmit a second hardware input device (e.g. line-in / aux)
alongside the mic, with its own device picker and volume, from Audio Settings.
No core/ABI/proto changes: the aux is a VC_STREAM_AUX_DEVICE stream started
with external_feed=1 and fed via vc_stream_feed_pcm (the same external-feed
pipeline screen-audio uses). Per-kind local_streams_ already allows mic +
screen + one aux to coexist; volume is a client-side gain multiply (the core's
vc_set_input_gain is mic-only/global). Aux is always-on (core never gates
AUX_DEVICE on VAD/PTT) and is tied to the voice session.
Windows: new Audio/InputDeviceCapture.cs (WASAPI shared-mode capture from a
real input endpoint + capture-endpoint enumeration); aux section in
AudioSettingsForm.cs; lifecycle in MainForm.cs; persistence in VoiceSettings.cs.
macOS: new Audio/InputDeviceCapture.swift (AVAudioEngine input-node tap pinned
to the chosen Core Audio device + device enumeration by stable UID); aux section
in SettingsWindowController.swift; lifecycle + UserDefaults persistence in
MainWindowController.swift; file registered in project.pbxproj.
Windows verified (C# solution builds clean; aux confirmed working). macOS build
+ E2E pending a Mac.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Audio input settings (device picker, VAD/PTT mode, VAD sensitivity, mic gain,
PTT key) move from the always-visible bottom panel into Settings > Audio...,
matching the macOS/iOS pattern.
The device ComboBox now uses DataSource + DisplayMember="Name" instead of
Items.Add() with no DisplayMember — this fixes both the display bug (was
showing the full DeviceInfo record ToString()) and the NVDA silence on
dropdown open (DataSource binding exposes proper MSAA text per item).
Changes apply live for immediate feedback; Cancel reverts. VoiceSettings
gains InputDeviceId to persist the chosen device across sessions.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
