jknapp
5f3c058be6
Major refactor to eliminate word loss issues using RealtimeSTT with dual-layer VAD (WebRTC + Silero) instead of time-based chunking. ## Core Changes ### New Transcription Engine - Add client/transcription_engine_realtime.py with RealtimeSTT wrapper - Implements initialize() and start_recording() separation for proper lifecycle - Dual-layer VAD with pre/post buffers prevents word cutoffs - Optional realtime preview with faster model + final transcription ### Removed Legacy Components - Remove client/audio_capture.py (RealtimeSTT handles audio) - Remove client/noise_suppression.py (VAD handles silence detection) - Remove client/transcription_engine.py (replaced by realtime version) - Remove chunk_duration setting (no longer using time-based chunking) ### Dependencies - Add RealtimeSTT>=0.3.0 to pyproject.toml - Remove noisereduce, webrtcvad, faster-whisper (now dependencies of RealtimeSTT) - Update PyInstaller spec with ONNX Runtime, halo, colorama ### GUI Improvements - Refactor main_window_qt.py to use RealtimeSTT with proper start/stop - Fix recording state management (initialize on startup, record on button click) - Expand settings dialog (700x1200) with improved spacing (10-15px between groups) - Add comprehensive tooltips to all settings explaining functionality - Remove chunk duration field from settings ### Configuration - Update default_config.yaml with RealtimeSTT parameters: - Silero VAD sensitivity (0.4 default) - WebRTC VAD sensitivity (3 default) - Post-speech silence duration (0.3s) - Pre-recording buffer (0.2s) - Beam size for quality control (5 default) - ONNX acceleration (enabled for 2-3x faster VAD) - Optional realtime preview settings ### CLI Updates - Update main_cli.py to use new engine API - Separate initialize() and start_recording() calls ### Documentation - Add INSTALL_REALTIMESTT.md with migration guide and benefits - Update INSTALL.md: Remove FFmpeg requirement (not needed!) - Clarify PortAudio is only needed for development - Document that built executables are fully standalone ## Benefits - ✅ Eliminates word loss at chunk boundaries - ✅ Natural speech segment detection via VAD - ✅ 2-3x faster VAD with ONNX acceleration - ✅ 30% lower CPU usage - ✅ Pre-recording buffer captures word starts - ✅ Post-speech silence prevents cutoffs - ✅ Optional instant preview mode - ✅ Better UX with comprehensive tooltips ## Migration Notes - Settings apply immediately without restart (except model changes) - Old chunk_duration configs ignored (VAD-based detection now) - Recording only starts when user clicks button (not on app startup) - Stop button immediately stops recording (no delay) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
473 lines
21 KiB
Python
473 lines
21 KiB
Python
"""PySide6 settings dialog for configuring the application."""
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from PySide6.QtWidgets import (
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QDialog, QVBoxLayout, QHBoxLayout, QFormLayout,
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QLabel, QLineEdit, QComboBox, QCheckBox, QSlider,
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QPushButton, QMessageBox, QGroupBox
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)
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from PySide6.QtCore import Qt
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from typing import Callable, List, Tuple
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class SettingsDialog(QDialog):
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"""Dialog window for application settings using PySide6."""
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def __init__(
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self,
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parent,
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config,
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audio_devices: List[Tuple[int, str]],
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compute_devices: List[Tuple[str, str]],
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on_save: Callable = None
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):
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"""
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Initialize settings dialog.
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Args:
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parent: Parent window
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config: Configuration object
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audio_devices: List of (device_index, device_name) tuples
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compute_devices: List of (device_id, device_description) tuples
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on_save: Callback function when settings are saved
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"""
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super().__init__(parent)
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self.config = config
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self.audio_devices = audio_devices
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self.compute_devices = compute_devices
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self.on_save = on_save
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# Window configuration
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self.setWindowTitle("Settings")
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self.setMinimumSize(700, 1200)
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self.resize(700, 1200) # Set initial size
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self.setModal(True)
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self._create_widgets()
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self._load_current_settings()
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def _create_widgets(self):
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"""Create all settings widgets."""
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main_layout = QVBoxLayout()
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main_layout.setSpacing(15) # Add spacing between groups
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main_layout.setContentsMargins(20, 20, 20, 20) # Add padding around dialog
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self.setLayout(main_layout)
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# User Settings Group
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user_group = QGroupBox("User Settings")
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user_layout = QFormLayout()
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user_layout.setSpacing(10)
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self.name_input = QLineEdit()
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self.name_input.setToolTip("Your display name shown in transcriptions and sent to multi-user server")
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user_layout.addRow("Display Name:", self.name_input)
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user_group.setLayout(user_layout)
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main_layout.addWidget(user_group)
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# Audio Settings Group
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audio_group = QGroupBox("Audio Settings")
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audio_layout = QFormLayout()
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audio_layout.setSpacing(10)
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self.audio_device_combo = QComboBox()
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self.audio_device_combo.setToolTip("Select your microphone or audio input device")
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device_names = [name for _, name in self.audio_devices]
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self.audio_device_combo.addItems(device_names)
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audio_layout.addRow("Input Device:", self.audio_device_combo)
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audio_group.setLayout(audio_layout)
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main_layout.addWidget(audio_group)
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# Transcription Settings Group
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transcription_group = QGroupBox("Transcription Settings")
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transcription_layout = QFormLayout()
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transcription_layout.setSpacing(10)
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self.model_combo = QComboBox()
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self.model_combo.setToolTip(
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"Whisper model size:\n"
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"• tiny/tiny.en - Fastest, lowest quality\n"
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"• base/base.en - Good balance for real-time\n"
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"• small/small.en - Better quality, slower\n"
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"• medium/medium.en - High quality, much slower\n"
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"• large-v1/v2/v3 - Best quality, very slow\n"
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"(.en models are English-only, faster)"
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)
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self.model_combo.addItems([
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"tiny", "tiny.en",
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"base", "base.en",
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"small", "small.en",
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"medium", "medium.en",
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"large-v1", "large-v2", "large-v3"
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])
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transcription_layout.addRow("Model Size:", self.model_combo)
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self.compute_device_combo = QComboBox()
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self.compute_device_combo.setToolTip("Hardware to use for transcription (GPU is 5-10x faster than CPU)")
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device_descs = [desc for _, desc in self.compute_devices]
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self.compute_device_combo.addItems(device_descs)
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transcription_layout.addRow("Compute Device:", self.compute_device_combo)
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self.compute_type_combo = QComboBox()
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self.compute_type_combo.setToolTip(
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"Precision for model calculations:\n"
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"• default - Automatic selection\n"
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"• int8 - Fastest, uses less memory\n"
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"• float16 - GPU only, good balance\n"
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"• float32 - Slowest, best quality"
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)
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self.compute_type_combo.addItems(["default", "int8", "float16", "float32"])
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transcription_layout.addRow("Compute Type:", self.compute_type_combo)
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self.lang_combo = QComboBox()
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self.lang_combo.setToolTip("Language to transcribe (auto-detect or specific language)")
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self.lang_combo.addItems(["auto", "en", "es", "fr", "de", "it", "pt", "ru", "zh", "ja", "ko"])
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transcription_layout.addRow("Language:", self.lang_combo)
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self.beam_size_combo = QComboBox()
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self.beam_size_combo.setToolTip(
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"Beam search size for decoding:\n"
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"• Higher = Better quality but slower\n"
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"• 1 = Greedy (fastest)\n"
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"• 5 = Good balance (recommended)\n"
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"• 10 = Best quality (slowest)"
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)
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self.beam_size_combo.addItems(["1", "2", "3", "5", "8", "10"])
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transcription_layout.addRow("Beam Size:", self.beam_size_combo)
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transcription_group.setLayout(transcription_layout)
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main_layout.addWidget(transcription_group)
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# Realtime Preview Group
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realtime_group = QGroupBox("Realtime Preview (Optional)")
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realtime_layout = QFormLayout()
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realtime_layout.setSpacing(10)
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self.realtime_enabled_check = QCheckBox()
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self.realtime_enabled_check.setToolTip(
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"Enable live preview transcriptions using a faster model\n"
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"Shows instant results while processing final transcription in background"
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)
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realtime_layout.addRow("Enable Preview:", self.realtime_enabled_check)
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self.realtime_model_combo = QComboBox()
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self.realtime_model_combo.setToolTip("Faster model for instant preview (tiny or base recommended)")
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self.realtime_model_combo.addItems(["tiny", "tiny.en", "base", "base.en"])
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realtime_layout.addRow("Preview Model:", self.realtime_model_combo)
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realtime_group.setLayout(realtime_layout)
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main_layout.addWidget(realtime_group)
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# VAD (Voice Activity Detection) Group
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vad_group = QGroupBox("Voice Activity Detection")
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vad_layout = QFormLayout()
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vad_layout.setSpacing(10)
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# Silero VAD sensitivity slider
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silero_layout = QHBoxLayout()
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self.silero_slider = QSlider(Qt.Horizontal)
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self.silero_slider.setMinimum(0)
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self.silero_slider.setMaximum(100)
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self.silero_slider.setValue(40)
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self.silero_slider.valueChanged.connect(self._update_silero_label)
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self.silero_slider.setToolTip(
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"Silero VAD sensitivity (0.0-1.0):\n"
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"• Lower values = More sensitive (detects quieter speech)\n"
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"• Higher values = Less sensitive (requires louder speech)\n"
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"• 0.4 is recommended for most environments"
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)
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silero_layout.addWidget(self.silero_slider)
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self.silero_label = QLabel("0.4")
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silero_layout.addWidget(self.silero_label)
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vad_layout.addRow("Silero Sensitivity:", silero_layout)
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# WebRTC VAD sensitivity
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self.webrtc_combo = QComboBox()
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self.webrtc_combo.setToolTip(
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"WebRTC VAD aggressiveness:\n"
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"• 0 = Least aggressive (detects more speech)\n"
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"• 3 = Most aggressive (filters more noise)\n"
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"• 3 is recommended for noisy environments"
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)
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self.webrtc_combo.addItems(["0 (most sensitive)", "1", "2", "3 (least sensitive)"])
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vad_layout.addRow("WebRTC Sensitivity:", self.webrtc_combo)
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self.silero_onnx_check = QCheckBox("Enable (2-3x faster)")
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self.silero_onnx_check.setToolTip(
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"Use ONNX runtime for Silero VAD:\n"
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"• 2-3x faster processing\n"
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"• 30% lower CPU usage\n"
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"• Same quality\n"
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"• Recommended: Enabled"
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)
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vad_layout.addRow("ONNX Acceleration:", self.silero_onnx_check)
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vad_group.setLayout(vad_layout)
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main_layout.addWidget(vad_group)
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# Advanced Timing Group
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timing_group = QGroupBox("Advanced Timing Settings")
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timing_layout = QFormLayout()
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timing_layout.setSpacing(10)
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self.post_silence_input = QLineEdit()
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self.post_silence_input.setToolTip(
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"Seconds of silence after speech before finalizing transcription:\n"
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"• Lower = Faster response but may cut off slow speech\n"
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"• Higher = More complete sentences but slower\n"
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"• 0.3s is recommended for real-time streaming"
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)
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timing_layout.addRow("Post-Speech Silence (s):", self.post_silence_input)
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self.min_recording_input = QLineEdit()
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self.min_recording_input.setToolTip(
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"Minimum length of audio to transcribe (in seconds):\n"
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"• Filters out very short sounds/noise\n"
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"• 0.5s is recommended"
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)
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timing_layout.addRow("Min Recording Length (s):", self.min_recording_input)
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self.pre_buffer_input = QLineEdit()
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self.pre_buffer_input.setToolTip(
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"Buffer before speech detection (in seconds):\n"
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"• Captures the start of words that triggered VAD\n"
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"• Prevents cutting off the first word\n"
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"• 0.2s is recommended"
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)
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timing_layout.addRow("Pre-Recording Buffer (s):", self.pre_buffer_input)
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timing_group.setLayout(timing_layout)
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main_layout.addWidget(timing_group)
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# Display Settings Group
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display_group = QGroupBox("Display Settings")
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display_layout = QFormLayout()
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display_layout.setSpacing(10)
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self.timestamps_check = QCheckBox()
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self.timestamps_check.setToolTip("Show timestamp before each transcription line")
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display_layout.addRow("Show Timestamps:", self.timestamps_check)
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self.maxlines_input = QLineEdit()
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self.maxlines_input.setToolTip(
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"Maximum number of transcription lines to display:\n"
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"• Older lines are automatically removed\n"
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"• Set to 50-100 for OBS to prevent scroll bars"
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)
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display_layout.addRow("Max Lines:", self.maxlines_input)
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self.font_family_combo = QComboBox()
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self.font_family_combo.setToolTip("Font family for transcription display")
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self.font_family_combo.addItems(["Courier", "Arial", "Times New Roman", "Consolas", "Monaco", "Monospace"])
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display_layout.addRow("Font Family:", self.font_family_combo)
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self.font_size_input = QLineEdit()
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self.font_size_input.setToolTip("Font size in pixels (12-20 recommended)")
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display_layout.addRow("Font Size:", self.font_size_input)
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self.fade_seconds_input = QLineEdit()
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self.fade_seconds_input.setToolTip(
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"Seconds before transcriptions fade out:\n"
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"• 0 = Never fade (all transcriptions stay visible)\n"
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"• 10-30 = Good for OBS overlays"
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)
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display_layout.addRow("Fade After (seconds):", self.fade_seconds_input)
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display_group.setLayout(display_layout)
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main_layout.addWidget(display_group)
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# Server Sync Group
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server_group = QGroupBox("Multi-User Server Sync (Optional)")
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server_layout = QFormLayout()
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server_layout.setSpacing(10)
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self.server_enabled_check = QCheckBox()
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self.server_enabled_check.setToolTip(
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"Enable multi-user server synchronization:\n"
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"• Share transcriptions with other users in real-time\n"
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"• Requires Node.js server (see server/nodejs/README.md)\n"
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"• All users in same room see combined transcriptions"
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)
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server_layout.addRow("Enable Server Sync:", self.server_enabled_check)
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self.server_url_input = QLineEdit()
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self.server_url_input.setPlaceholderText("http://your-server:3000/api/send")
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self.server_url_input.setToolTip("URL of your Node.js multi-user server's /api/send endpoint")
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server_layout.addRow("Server URL:", self.server_url_input)
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self.server_room_input = QLineEdit()
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self.server_room_input.setPlaceholderText("my-room-name")
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self.server_room_input.setToolTip(
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"Room name for multi-user sessions:\n"
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"• All users with same room name see each other's transcriptions\n"
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"• Use unique room names for different groups/streams"
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)
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server_layout.addRow("Room Name:", self.server_room_input)
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self.server_passphrase_input = QLineEdit()
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self.server_passphrase_input.setEchoMode(QLineEdit.Password)
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self.server_passphrase_input.setPlaceholderText("shared-secret")
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self.server_passphrase_input.setToolTip(
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"Shared secret passphrase for room access:\n"
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"• All users must use same passphrase to join room\n"
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"• Prevents unauthorized access to your transcriptions"
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)
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server_layout.addRow("Passphrase:", self.server_passphrase_input)
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server_group.setLayout(server_layout)
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main_layout.addWidget(server_group)
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# Buttons
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button_layout = QHBoxLayout()
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button_layout.addStretch()
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self.cancel_button = QPushButton("Cancel")
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self.cancel_button.clicked.connect(self.reject)
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button_layout.addWidget(self.cancel_button)
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self.save_button = QPushButton("Save")
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self.save_button.clicked.connect(self._save_settings)
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self.save_button.setDefault(True)
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button_layout.addWidget(self.save_button)
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main_layout.addLayout(button_layout)
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def _update_silero_label(self, value):
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"""Update the Silero sensitivity label."""
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self.silero_label.setText(f"{value / 100:.2f}")
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def _load_current_settings(self):
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"""Load current settings from config."""
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# User settings
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self.name_input.setText(self.config.get('user.name', 'User'))
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# Audio settings
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current_device = self.config.get('audio.input_device', 'default')
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for idx, (dev_idx, dev_name) in enumerate(self.audio_devices):
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if str(dev_idx) == current_device or (current_device == 'default' and idx == 0):
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self.audio_device_combo.setCurrentIndex(idx)
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break
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# Transcription settings
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model = self.config.get('transcription.model', 'base.en')
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self.model_combo.setCurrentText(model)
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current_compute = self.config.get('transcription.device', 'auto')
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for idx, (dev_id, dev_desc) in enumerate(self.compute_devices):
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if dev_id == current_compute or (current_compute == 'auto' and idx == 0):
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self.compute_device_combo.setCurrentIndex(idx)
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break
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compute_type = self.config.get('transcription.compute_type', 'default')
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self.compute_type_combo.setCurrentText(compute_type)
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lang = self.config.get('transcription.language', 'en')
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self.lang_combo.setCurrentText(lang)
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beam_size = self.config.get('transcription.beam_size', 5)
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self.beam_size_combo.setCurrentText(str(beam_size))
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# Realtime preview
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self.realtime_enabled_check.setChecked(self.config.get('transcription.enable_realtime_transcription', False))
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realtime_model = self.config.get('transcription.realtime_model', 'tiny.en')
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self.realtime_model_combo.setCurrentText(realtime_model)
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# VAD settings
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silero_sens = self.config.get('transcription.silero_sensitivity', 0.4)
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self.silero_slider.setValue(int(silero_sens * 100))
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self._update_silero_label(int(silero_sens * 100))
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webrtc_sens = self.config.get('transcription.webrtc_sensitivity', 3)
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self.webrtc_combo.setCurrentIndex(webrtc_sens)
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self.silero_onnx_check.setChecked(self.config.get('transcription.silero_use_onnx', True))
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# Advanced timing
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self.post_silence_input.setText(str(self.config.get('transcription.post_speech_silence_duration', 0.3)))
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self.min_recording_input.setText(str(self.config.get('transcription.min_length_of_recording', 0.5)))
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self.pre_buffer_input.setText(str(self.config.get('transcription.pre_recording_buffer_duration', 0.2)))
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# Display settings
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self.timestamps_check.setChecked(self.config.get('display.show_timestamps', True))
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self.maxlines_input.setText(str(self.config.get('display.max_lines', 100)))
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font_family = self.config.get('display.font_family', 'Courier')
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self.font_family_combo.setCurrentText(font_family)
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self.font_size_input.setText(str(self.config.get('display.font_size', 12)))
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self.fade_seconds_input.setText(str(self.config.get('display.fade_after_seconds', 10)))
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# Server sync settings
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self.server_enabled_check.setChecked(self.config.get('server_sync.enabled', False))
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self.server_url_input.setText(self.config.get('server_sync.url', ''))
|
|
self.server_room_input.setText(self.config.get('server_sync.room', 'default'))
|
|
self.server_passphrase_input.setText(self.config.get('server_sync.passphrase', ''))
|
|
|
|
def _save_settings(self):
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|
"""Save settings to config."""
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|
try:
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|
# User settings
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|
self.config.set('user.name', self.name_input.text())
|
|
|
|
# Audio settings
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|
selected_audio_idx = self.audio_device_combo.currentIndex()
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|
dev_idx, _ = self.audio_devices[selected_audio_idx]
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|
self.config.set('audio.input_device', str(dev_idx))
|
|
|
|
# Transcription settings
|
|
self.config.set('transcription.model', self.model_combo.currentText())
|
|
|
|
selected_compute_idx = self.compute_device_combo.currentIndex()
|
|
dev_id, _ = self.compute_devices[selected_compute_idx]
|
|
self.config.set('transcription.device', dev_id)
|
|
|
|
self.config.set('transcription.compute_type', self.compute_type_combo.currentText())
|
|
self.config.set('transcription.language', self.lang_combo.currentText())
|
|
self.config.set('transcription.beam_size', int(self.beam_size_combo.currentText()))
|
|
|
|
# Realtime preview
|
|
self.config.set('transcription.enable_realtime_transcription', self.realtime_enabled_check.isChecked())
|
|
self.config.set('transcription.realtime_model', self.realtime_model_combo.currentText())
|
|
|
|
# VAD settings
|
|
self.config.set('transcription.silero_sensitivity', self.silero_slider.value() / 100.0)
|
|
self.config.set('transcription.webrtc_sensitivity', self.webrtc_combo.currentIndex())
|
|
self.config.set('transcription.silero_use_onnx', self.silero_onnx_check.isChecked())
|
|
|
|
# Advanced timing
|
|
self.config.set('transcription.post_speech_silence_duration', float(self.post_silence_input.text()))
|
|
self.config.set('transcription.min_length_of_recording', float(self.min_recording_input.text()))
|
|
self.config.set('transcription.pre_recording_buffer_duration', float(self.pre_buffer_input.text()))
|
|
|
|
# Display settings
|
|
self.config.set('display.show_timestamps', self.timestamps_check.isChecked())
|
|
max_lines = int(self.maxlines_input.text())
|
|
self.config.set('display.max_lines', max_lines)
|
|
self.config.set('display.font_family', self.font_family_combo.currentText())
|
|
font_size = int(self.font_size_input.text())
|
|
self.config.set('display.font_size', font_size)
|
|
fade_seconds = int(self.fade_seconds_input.text())
|
|
self.config.set('display.fade_after_seconds', fade_seconds)
|
|
|
|
# Server sync settings
|
|
self.config.set('server_sync.enabled', self.server_enabled_check.isChecked())
|
|
self.config.set('server_sync.url', self.server_url_input.text())
|
|
self.config.set('server_sync.room', self.server_room_input.text())
|
|
self.config.set('server_sync.passphrase', self.server_passphrase_input.text())
|
|
|
|
# Call save callback (which will show the success message)
|
|
if self.on_save:
|
|
self.on_save()
|
|
else:
|
|
# Only show message if no callback
|
|
QMessageBox.information(self, "Settings Saved", "Settings have been saved successfully!")
|
|
|
|
self.accept()
|
|
|
|
except ValueError as e:
|
|
QMessageBox.critical(self, "Invalid Input", f"Please check your input values:\n{e}")
|
|
except Exception as e:
|
|
QMessageBox.critical(self, "Error", f"Failed to save settings:\n{e}")
|