科大讯飞语音转写demo go语言版

上传了一个语音文件，识别效果。
在这里插入图片描述

package audioimport ("bytes""crypto/hmac""crypto/md5""crypto/sha1""encoding/base64""encoding/json""fmt""io/ioutil""net/http""net/url""os""strconv""time"
)const (lfasrHost    = "https://raasr.xfyun.cn/v2/api"apiUpload    = "/upload"apiGetResult = "/getResult"
)type RequestApi struct {AppID          stringSecretKey      stringUploadFilePath stringTimestamp      stringSigna          string
}// SpeechResult 代表整个识别结果的结构
type SpeechResult struct {Code     string        `json:"code"`Content  SpeechContent `json:"content"`DescInfo string        `json:"descInfo"`
}// SpeechContent 代表 result 部分的结构
type SpeechContent struct {OrderInfo   OrderInfo `json:"orderInfo"`OrderResult string    `json:"orderResult"`
}// OrderInfo 代表 orderInfo 部分的结构
type OrderInfo struct {ExpireTime       float64 `json:"expireTime"`FailType         int     `json:"failType"`OrderID          string  `json:"orderId"`OriginalDuration int     `json:"originalDuration"`RealDuration     int     `json:"realDuration"`Status           int     `json:"status"`
}// SpeechResultData 代表 orderResult 中的数据结构
type SpeechResultData struct {Lattice  []LatticeItem  `json:"lattice"`Lattice2 []Lattice2Item `json:"lattice2"`
}// LatticeItem 代表 lattice 部分的结构
type LatticeItem struct {Json1Best string `json:"json_1best"`
}// Lattice2Item 代表 lattice2 部分的结构
type Lattice2Item struct {Lid       string       `json:"lid"`End       string       `json:"end"`Begin     string       `json:"begin"`Json1Best Lattice2Best `json:"json_1best"`
}// Lattice2Best 代表 lattice2 中 json_1best 部分的结构
type Lattice2Best struct {St SpeechText `json:"st"`
}// SpeechText 代表语音识别的详细文本结构
type SpeechText struct {Sc string     `json:"sc"`Pa string     `json:"pa"`Rt []SpeechRT `json:"rt"`
}// SpeechRT 代表 rt 部分的结构
type SpeechRT struct {Ws []SpeechWS `json:"ws"`
}// SpeechWS 代表 ws 部分的结构
type SpeechWS struct {Cw []SpeechCW `json:"cw"`
}// SpeechCW 代表 cw 部分的结构
type SpeechCW struct {W  string `json:"w"`Wp string `json:"wp"`Wc string `json:"wc"`
}func extractTextFromResult(orderResult string) (string, error) {var result SpeechResultDataerr := json.Unmarshal([]byte(orderResult), &result)if err != nil {return "", err}var text string// 从 lattice2 中提取文本for _, lattice2 := range result.Lattice2 {st := lattice2.Json1Best.Stfor _, rtItem := range st.Rt {for _, wsItem := range rtItem.Ws {for _, cwItem := range wsItem.Cw {text += cwItem.W}}}}return text, nil
}func (api *RequestApi) getSigna() string {appid := api.AppIDsecretKey := api.SecretKeyts := api.Timestamp// 1. 获取 baseStringbaseString := appid + ts// 2. 对 baseString 进行 MD5md5Hash := md5.Sum([]byte(baseString))md5HashString := fmt.Sprintf("%x", md5Hash)// 3. 使用 secretKey 对 MD5 结果进行 HMAC-SHA1 加密hmacHash := hmac.New(sha1.New, []byte(secretKey))hmacHash.Write([]byte(md5HashString))signa := base64.StdEncoding.EncodeToString(hmacHash.Sum(nil))return signa
}func (api *RequestApi) upload() (map[string]interface{}, error) {fmt.Println("上传部分：")filePath := api.UploadFilePathfile, err := os.Open(filePath)if err != nil {return nil, err}defer file.Close()fileInfo, err := file.Stat()if err != nil {return nil, err}fileLen := fileInfo.Size()fileName := fileInfo.Name()param := url.Values{}param.Add("appId", api.AppID)param.Add("signa", api.Signa)param.Add("ts", api.Timestamp)param.Add("fileSize", strconv.FormatInt(fileLen, 10))param.Add("fileName", fileName)param.Add("duration", "200")url := lfasrHost + apiUpload + "?" + param.Encode()fmt.Println("upload参数：", param)fmt.Println("upload_url:", url)data, err := ioutil.ReadFile(filePath)if err != nil {return nil, err}resp, err := http.Post(url, "application/json", bytes.NewReader(data))if err != nil {return nil, err}defer resp.Body.Close()body, err := ioutil.ReadAll(resp.Body)if err != nil {return nil, err}result := make(map[string]interface{})err = json.Unmarshal(body, &result)if err != nil {return nil, err}fmt.Println("upload resp:", result)return result, nil
}func (api *RequestApi) getResult() (*SpeechResult, error) {uploadResp, err := api.upload()if err != nil {return nil, err}orderId := uploadResp["content"].(map[string]interface{})["orderId"].(string)param := url.Values{}param.Add("appId", api.AppID)param.Add("signa", api.Signa)param.Add("ts", api.Timestamp)param.Add("orderId", orderId)param.Add("resultType", "transfer,predict")url := lfasrHost + apiGetResult + "?" + param.Encode()fmt.Println("查询部分：")fmt.Println("get result参数：", param)//var result map[string]interface{}var result SpeechResultstatus := 3for status == 3 {resp, err := http.Post(url, "application/json", nil)if err != nil {return nil, err}defer resp.Body.Close()body, err := ioutil.ReadAll(resp.Body)if err != nil {return nil, err}err = json.Unmarshal(body, &result)if err != nil {return nil, err}fmt.Println(result)status = result.Content.OrderInfo.Statusif status == 4 {break}time.Sleep(5 * time.Second)}fmt.Println("get_result resp:", result)return &result, nil
}func XunfeiMain() {ts := strconv.FormatInt(time.Now().Unix(), 10)api := RequestApi{AppID:          "xxx",SecretKey:      "xxx",UploadFilePath: "XXX",Timestamp:      ts,Signa:          "",}api.Signa = api.getSigna()maps, err := api.getResult()if err != nil {fmt.Println("Error:", err)}str := maps.Content.OrderResulttext, err := extractTextFromResult(str)if err != nil {fmt.Println("Error:", err)return}fmt.Println("Extracted Text:", text)
}