mirror of
https://github.com/xinnan-tech/xiaozhi-esp32-server.git
synced 2026-07-22 07:03:53 +08:00
@@ -0,0 +1,24 @@
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-- VOSK ASR模型供应器
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delete from `ai_model_provider` where id = 'SYSTEM_ASR_VoskASR';
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INSERT INTO `ai_model_provider` (`id`, `model_type`, `provider_code`, `name`, `fields`, `sort`, `creator`, `create_date`, `updater`, `update_date`) VALUES
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('SYSTEM_ASR_VoskASR', 'ASR', 'vosk', 'VOSK离线语音识别', '[{"key": "model_path", "type": "string", "label": "模型路径"}, {"key": "output_dir", "type": "string", "label": "输出目录"}]', 11, 1, NOW(), 1, NOW());
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-- VOSK ASR模型配置
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delete from `ai_model_config` where id = 'ASR_VoskASR';
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INSERT INTO `ai_model_config` VALUES ('ASR_VoskASR', 'ASR', 'VoskASR', 'VOSK离线语音识别', 0, 1, '{\"type\": \"vosk\", \"model_path\": \"\", \"output_dir\": \"tmp/\"}', NULL, NULL, 11, NULL, NULL, NULL, NULL);
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-- 更新VOSK ASR配置说明
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UPDATE `ai_model_config` SET
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`doc_link` = 'https://alphacephei.com/vosk/',
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`remark` = 'VOSK ASR配置说明:
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1. VOSK是一个离线语音识别库,支持多种语言
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2. 需要先下载模型文件:https://alphacephei.com/vosk/models
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3. 中文模型推荐使用vosk-model-small-cn-0.22或vosk-model-cn-0.22
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4. 完全离线运行,无需网络连接
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5. 输出文件保存在tmp/目录
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使用步骤:
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1. 访问 https://alphacephei.com/vosk/models 下载中文模型
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2. 解压模型文件到项目目录下的models/vosk/文件夹
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3. 在配置中指定正确的模型路径
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4. 注意:VOSK中文模型输出不带标点符号,词与词之间会有空格
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' WHERE `id` = 'ASR_VoskASR';
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@@ -303,3 +303,10 @@ databaseChangeLog:
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- sqlFile:
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encoding: utf8
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path: classpath:db/changelog/202508131557.sql
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- changeSet:
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id: 202508271113
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author: cgd
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changes:
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- sqlFile:
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encoding: utf8
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path: classpath:db/changelog/202508271113.sql
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@@ -392,6 +392,22 @@ ASR:
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base_url: https://api.groq.com/openai/v1/audio/transcriptions
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model_name: whisper-large-v3-turbo
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output_dir: tmp/
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VoskASR:
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# 官方网站:https://alphacephei.com/vosk/
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# 配置说明:
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# 1. VOSK是一个离线语音识别库,支持多种语言
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# 2. 需要先下载模型文件:https://alphacephei.com/vosk/models
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# 3. 中文模型推荐使用vosk-model-small-cn-0.22或vosk-model-cn-0.22
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# 4. 完全离线运行,无需网络连接
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# 5. 输出文件保存在tmp/目录
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# 使用步骤:
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# 1. 访问 https://alphacephei.com/vosk/models 下载对应的模型
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# 2. 解压模型文件到项目目录下的models/vosk/文件夹
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# 3. 在配置中指定正确的模型路径
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# 4. 注意:VOSK中文模型输出不带标点符号,词与词之间会有空格
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type: vosk
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model_path: 你的模型路径,如:models/vosk/vosk-model-small-cn-0.22
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output_dir: tmp/
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@@ -0,0 +1,114 @@
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import os
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import json
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import time
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from typing import Optional, Tuple, List
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from .base import ASRProviderBase
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from config.logger import setup_logging
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from core.providers.asr.dto.dto import InterfaceType
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import vosk
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TAG = __name__
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logger = setup_logging()
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class ASRProvider(ASRProviderBase):
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def __init__(self, config: dict, delete_audio_file: bool = True):
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super().__init__()
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self.interface_type = InterfaceType.LOCAL
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self.model_path = config.get("model_path")
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self.output_dir = config.get("output_dir", "tmp/")
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self.delete_audio_file = delete_audio_file
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# 初始化VOSK模型
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self.model = None
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self.recognizer = None
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self._load_model()
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# 确保输出目录存在
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os.makedirs(self.output_dir, exist_ok=True)
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def _load_model(self):
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"""加载VOSK模型"""
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try:
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if not os.path.exists(self.model_path):
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raise FileNotFoundError(f"VOSK模型路径不存在: {self.model_path}")
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logger.bind(tag=TAG).info(f"正在加载VOSK模型: {self.model_path}")
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self.model = vosk.Model(self.model_path)
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# 初始化VOSK识别器(采样率必须为16kHz)
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self.recognizer = vosk.KaldiRecognizer(self.model, 16000)
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logger.bind(tag=TAG).info("VOSK模型加载成功")
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except Exception as e:
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logger.bind(tag=TAG).error(f"加载VOSK模型失败: {e}")
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raise
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async def speech_to_text(
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self, audio_data: List[bytes], session_id: str, audio_format: str = "opus"
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) -> Tuple[Optional[str], Optional[str]]:
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"""将语音数据转换为文本"""
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file_path = None
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try:
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# 检查模型是否加载成功
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if not self.model:
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logger.bind(tag=TAG).error("VOSK模型未加载,无法进行识别")
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return "", None
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# 解码音频(如果原始格式是Opus)
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if audio_format == "pcm":
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pcm_data = audio_data
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else:
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pcm_data = self.decode_opus(audio_data)
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if not pcm_data:
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logger.bind(tag=TAG).warning("解码后的PCM数据为空,无法进行识别")
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return "", None
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# 合并PCM数据
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combined_pcm_data = b"".join(pcm_data)
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if len(combined_pcm_data) == 0:
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logger.bind(tag=TAG).warning("合并后的PCM数据为空")
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return "", None
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# 判断是否保存为WAV文件
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if not self.delete_audio_file:
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file_path = self.save_audio_to_file(pcm_data, session_id)
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start_time = time.time()
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# 进行识别(VOSK推荐每次送入2000字节的数据)
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chunk_size = 2000
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text_result = ""
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for i in range(0, len(combined_pcm_data), chunk_size):
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chunk = combined_pcm_data[i:i+chunk_size]
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if self.recognizer.AcceptWaveform(chunk):
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result = json.loads(self.recognizer.Result())
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text = result.get('text', '')
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if text:
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text_result += text + " "
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# 获取最终结果
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final_result = json.loads(self.recognizer.FinalResult())
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final_text = final_result.get('text', '')
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if final_text:
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text_result += final_text
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logger.bind(tag=TAG).debug(
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f"VOSK语音识别耗时: {time.time() - start_time:.3f}s | 结果: {text_result.strip()}"
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)
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return text_result.strip(), file_path
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except Exception as e:
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logger.bind(tag=TAG).error(f"VOSK语音识别失败: {e}")
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return "", None
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finally:
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# 文件清理逻辑
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if self.delete_audio_file and file_path and os.path.exists(file_path):
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try:
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os.remove(file_path)
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logger.bind(tag=TAG).debug(f"已删除临时音频文件: {file_path}")
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except Exception as e:
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logger.bind(tag=TAG).error(f"文件删除失败: {file_path} | 错误: {e}")
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