mirror of
https://github.com/xinnan-tech/xiaozhi-esp32-server.git
synced 2026-07-22 23:23:55 +08:00
101 lines
3.2 KiB
Python
101 lines
3.2 KiB
Python
from config.logger import setup_logging
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import json
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import asyncio
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import time
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from core.utils.util import remove_punctuation_and_length, get_string_no_punctuation_or_emoji
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TAG = __name__
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logger = setup_logging()
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async def sendAudioMessage(conn, audios, text, text_index=0):
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# 发送句子开始消息
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if text_index == conn.tts_first_text_index:
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logger.bind(tag=TAG).info(f"发送第一段语音: {text}")
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await send_tts_message(conn, "sentence_start", text)
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# 播放音频
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await sendAudio(conn, audios)
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await send_tts_message(conn, "sentence_end", text)
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# 发送结束消息（如果是最后一个文本）
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if conn.llm_finish_task and text_index == conn.tts_last_text_index:
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await send_tts_message(conn, 'stop', None)
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if conn.close_after_chat:
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await conn.close()
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# 播放音频
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async def sendAudio(conn, audios):
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# 流控参数优化
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frame_duration = 60 # 帧时长（毫秒），匹配 Opus 编码
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start_time = time.perf_counter()
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play_position = 0
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# 预缓冲：发送前 3 帧
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pre_buffer = min(3, len(audios))
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for i in range(pre_buffer):
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await conn.websocket.send(audios[i])
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conn.logger.bind(tag=TAG).debug(f"预缓冲帧 {i}, 时间: {(time.perf_counter() - start_time) * 1000:.2f}ms")
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# 正常播放剩余帧
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for opus_packet in audios[pre_buffer:]:
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if conn.client_abort:
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return
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# 计算预期发送时间
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expected_time = start_time + (play_position / 1000)
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current_time = time.perf_counter()
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delay = expected_time - current_time
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if delay > 0:
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await asyncio.sleep(delay)
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await conn.websocket.send(opus_packet)
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conn.logger.bind(tag=TAG).debug(f"发送帧，位置: {play_position}ms, 实际间隔: {(time.perf_counter() - current_time) * 1000:.2f}ms")
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play_position += frame_duration
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async def send_tts_message(conn, state, text=None):
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"""发送 TTS 状态消息"""
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message = {
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"type": "tts",
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"state": state,
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"session_id": conn.session_id
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}
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if text is not None:
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message["text"] = text
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# TTS播放结束
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if state == "stop":
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# 播放提示音
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tts_notify = conn.config.get("enable_stop_tts_notify", False)
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if tts_notify:
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stop_tts_notify_voice = conn.config.get("stop_tts_notify_voice", "config/assets/tts_notify.mp3")
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audios, duration = conn.tts.audio_to_opus_data(stop_tts_notify_voice)
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await sendAudio(conn, audios)
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# 清除服务端讲话状态
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conn.clearSpeakStatus()
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# 发送消息到客户端
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await conn.websocket.send(json.dumps(message))
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async def send_stt_message(conn, text):
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"""发送 STT 状态消息"""
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stt_text = get_string_no_punctuation_or_emoji(text)
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await conn.websocket.send(json.dumps({
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"type": "stt",
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"text": stt_text,
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"session_id": conn.session_id}
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))
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await conn.websocket.send(
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json.dumps({
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"type": "llm",
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"text": "😊",
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"emotion": "happy",
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"session_id": conn.session_id}
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))
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await send_tts_message(conn, "start")
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