# Server Configuration
HOST=0.0.0.0
PORT=8000

BACKEND_URL=http://127.0.0.1:8100

# Audio Configuration
SAMPLE_RATE=16000
CHUNK_SIZE_MS=20

# VAD Configuration
VAD_THRESHOLD=0.5
VAD_EOU_THRESHOLD_MS=600
VAD_MIN_SPEECH_DURATION_MS=160

# OpenAI / LLM Configuration (required for duplex voice)
OPENAI_API_KEY=sk-fc4d59b360475f53401a864db8ce0985010acc4e696723d20a90d6569f38d80a
OPENAI_API_URL=https://api.qnaigc.com/v1  # Optional: for Azure or compatible APIs
LLM_MODEL=deepseek-v3
LLM_TEMPERATURE=0.7

# TTS Configuration
TTS_PROVIDER=siliconflow
TTS_VOICE=anna
TTS_SPEED=1.0

# SiliconFlow Configuration (for TTS and ASR)
SILICONFLOW_API_KEY=sk-thmzysdpqqmhqxxshyqoxvjeiflexjdgaftyufrsgrhpjnyx
SILICONFLOW_TTS_MODEL=FunAudioLLM/CosyVoice2-0.5B

# ASR Configuration
ASR_PROVIDER=siliconflow
SILICONFLOW_ASR_MODEL=FunAudioLLM/SenseVoiceSmall
ASR_INTERIM_INTERVAL_MS=500
ASR_MIN_AUDIO_MS=300

# Duplex Pipeline Configuration
DUPLEX_ENABLED=true
# DUPLEX_GREETING=Hello! How can I help you today?
DUPLEX_SYSTEM_PROMPT=You are a helpful, friendly voice assistant. Keep your responses concise and conversational.

# Barge-in Configuration
# Minimum speech duration (ms) to trigger interruption - filters out brief noises
# Lower = more sensitive (50-100ms recommended), Higher = filters more noise
BARGE_IN_MIN_DURATION_MS=100

ASR_START_MIN_SPEECH_MS=100
ASR_PRE_SPEECH_MS=320

# Logging
LOG_LEVEL=INFO
LOG_FORMAT=text