NLP (Natural Language Processing) / NLU (Natural Language Understanding): 负责理解听力文本、用户输入,进行语义分析、纠错判断。...TTS (Text-to-Speech): (如果需要AI外教或标准发音示范)负责将文本转为自然语音。部署: 大部分AI服务部署在云端,通过API供APP调用。...), SageMaker (机器学习平台), Polly (TTS), Transcribe (ASR).Google Cloud Platform (GCP): Cloud Storage, Compute...1.语音识别 (ASR/STT):云服务API: AWS Transcribe, Google Cloud Speech-to-Text, Azure Speech Service, 百度语音、讯飞语音...3.文本转语音 (TTS):云服务API: AWS Polly, Google Cloud Text-to-Speech, Azure Speech Service, 百度语音、讯飞语音。