{ "sentence_id": { "_type": "string", "pa_type": "string" }, "text": { "_type": "string", "pa_type": "string" }, "audio": { "_type": "audio", "pa_type": "struct, sampling_rate: int32>", "feature": { "sampling_rate": 44100, "_type": "Audio" } }, "duration": { "_type": "float", "pa_type": "double" }, "speaker": { "_type": "string", "pa_type": "string" }, "sampling_rate": { "_type": "int", "pa_type": "int64" } }