ASR语音识别接口V1.0
ASR语音识别接口V1.0
客户端使用websocket与语音识别服务器进行通信
服务器地址：asr.zaofada.com websocket端口是8002。
1、语音识别相关命令：
CMD_DECODE_BEGIN_STREAM
必要参数：
无
可选参数：
LangMod:
语言模型名称，默认为default-001，此项功能只在拥有自定义训练语言模型时有效。
Vad:
是否进行vad音频切分，0：切分，1：不切分，默认为1。
Punc:
是否预测标点符号，0：不预测，1：预测，默认为1。
SegTM:
是否获取切分开始结束时间，0：不获取，1：获取，默认为1。
SampleRate:
wav采样率，8000：8k音频，16000：16k音频。默认为8000。
系统仅支持16bit的采样位深。
Immediate:
是否实时立即返回最新识别结果，0：实时，1：非实时，默认为0。
示例：
参数全部默认：
{“EvtID”: “CMD_DECODE_BEGIN_STREAM”}
不进行vad切分：
{“EvtID”: “CMD_DECODE_BEGIN_STREAM”, “Vad”:0}
不进行标点符号预测：
{“EvtID”: “CMD_DECODE_BEGIN_STREAM”, “Punc”:0}
CMD_DECODE_ONLINE_PUSH_FRAME
必要参数：
EndPoint:结束点标志，上传文件完毕最后一帧结束时设置为1，否则为0。
Frame:经过base64加密的音频二进制数据，EndPoint参数为结尾标志，最后一次发送音频结尾的时候值为1，其余的为0。
可选参数：
无
示例：
{"EvtID":"CMD_DECODE_ONLINE_PUSH_FRAME","EndPoint":0,"Frame":"feowdwefwewe341321\ga=="}
非结束帧
{"EvtID":"CMD_DECODE_ONLINE_PUSH_FRAME","EndPoint":1,"Frame":"feowdwefwewe341321\ga=="}
最后一帧
2、语音识别流程：
Websocket流式识别接口支持实时识别，在发送音频流之前需要先发送CMD_DECODE_BEGIN_STREAM命令，命令格式如下：
{"EvtID":"CMD_DECODE_BEGIN_STREAM"}
发送CMD_DECODE_BEGIN_STREAM之后可以立即上传音频流，上传音频流命令如下：
{"EvtID":"CMD_DECODE_ONLINE_PUSH_FRAME","EndPoint":0,"Frame":"feo|wdwefwewe341321\ga=="}
Frame参数是经过base64加密的音频二进制数据，EndPoint参数为结尾标志，最后一次发送音频结尾的时候值为1，其余的为0。每次分片为10ms。
3、识别结果示例：
开始发送音频帧后，有识别内容时会立即返回，返回结果如下：
{"RESULT":"SUCCES","Begin":0.00,"Vad":0,"End":66.99,"LastFlag":0,"Content":"您好，三江客"}
Begin和End参数为开始和结束时间，单位ms。
Vad参数为VAD切分标志，为1时为代表此次返回为一个Vad切分点，在Immediate参数为1时有效。
LastFlag参数为结束标志，为1时代表最后一次返回结果。
Content参数为识别结果，
Immediate参数为0时，Vad开启时则返回VAD切分的单句话识别结果，VAD关闭时则等发送完整个文件一次性返回结果。
Immediate参数为1时，Vad默认开启，识别到任何内容会立即返回最新识别结果，vad切分后整句话识别内容重置。
示例：
Immediate = 0 Vad = 1
{"RESULT":"SUCCES","Begin":0.00,"Vad":1,"End"2.74,"LastFlag":0,"Content":"你好"}
{"RESULT":"SUCCES","Begin":3.45,"Vad":1,"End":5.99,"LastFlag":0,"Content":"，今天天气怎么样"}
{"RESULT":"SUCCES","Begin":6.23,"Vad":1,"End":7.89,"LastFlag":1,"Content":"？还不错。"}
Immediate = 0 Vad = 0
{"RESULT":"SUCCES","Begin":0.00,"Vad":1,"End":7.89,"LastFlag":1,"Content":"你好，今天天气怎么样？还不错。"}
Immediate = 1
{"RESULT":"SUCCES","Begin":0.00,"Vad":0,"End":1.52,"LastFlag":0,"Content":"你"}
{"RESULT":"SUCCES","Begin":0.00,"Vad":0,"End":1.82,"LastFlag":0,"Content":"你"}
{"RESULT":"SUCCES","Begin":0.00,"Vad":0,"End":2.36,"LastFlag":0,"Content":"你好"}
{"RESULT":"SUCCES","Begin":0.00,"Vad":1,"End":2.74,"LastFlag":0,"Content":"你好，"}
{"RESULT":"SUCCES","Begin":3.45,"Vad":0,"End":3,56,"LastFlag":0,"Content":"今"}
{"RESULT":"SUCCES","Begin":3.45,"Vad":0,"End":3,68,"LastFlag":0,"Content":"今"}
{"RESULT":"SUCCES","Begin":3.45,"Vad":0,"End":4.12,"LastFlag":0,"Content":"今天"}
{"RESULT":"SUCCES","Begin":3.45,"Vad":0,"End":3,56,"LastFlag":0,"Content":"今天"}
{"RESULT":"SUCCES","Begin":3.45,"Vad":0,"End":7.8,"LastFlag":0,"Content":"今天天"}
{"RESULT":"SUCCES","Begin":3.45,"Vad":0,"End":7.8,"LastFlag":0,"Content":"今天天"}
{"RESULT":"SUCCES","Begin":3.45,"Vad":0,"End":7.8,"LastFlag":0,"Content":"今天天气"}
{"RESULT":"SUCCES","Begin":3.45,"Vad":0,"End":7.8,"LastFlag":0,"Content":"今天天气"}
{"RESULT":"SUCCES","Begin":3.45,"Vad":0,"End":7.8,"LastFlag":0,"Content":"今天天气怎"}
{"RESULT":"SUCCES","Begin":3.45,"Vad":0,"End":7.8,"LastFlag":0,"Content":"今天天气怎"}
{"RESULT":"SUCCES","Begin":3.45,"Vad":0,"End":7.8,"LastFlag":0,"Content":"今天天气怎么"}
{"RESULT":"SUCCES","Begin":3.45,"Vad":0,"End":7.8,"LastFlag":0,"Content":"今天天气怎么"}
{"RESULT":"SUCCES","Begin":3.45,"Vad":0,"End":7.8,"LastFlag":0,"Content":"今天天气怎么样"}
{"RESULT":"SUCCES","Begin":3.45,"Vad":1,"End":7.8,"LastFlag":1,"Content":"今天天气怎么样？"}
{"RESULT":"SUCCES","Begin":6.23,"Vad":0,"End":7.89,"LastFlag":0,"Content":"还"}
{"RESULT":"SUCCES","Begin":6.23,"Vad":0,"End":7.89,"LastFlag":0,"Content":"还"}
{"RESULT":"SUCCES","Begin":6.23,"Vad":0,"End":7.89,"LastFlag":0,"Content":"还不"}
{"RESULT":"SUCCES","Begin":6.23,"Vad":0,"End":7.89,"LastFlag":0,"Content":"还不"}
{"RESULT":"SUCCES","Begin":6.23,"Vad":0,"End":7.89,"LastFlag":0,"Content":"还不错"}
{"RESULT":"SUCCES","Begin":6.23,"Vad":1,"End":7.89,"LastFlag":1,"Content":"还不错。"}