


Indispensable skills for Golang developers: Easily connect to Baidu AI interface to achieve speech recognition
1. Foreword
With the development of artificial intelligence technology With continuous development, speech recognition has been widely used in various fields. Baidu AI provides a series of API interfaces, including speech recognition services. This article will introduce how to use the Golang programming language to easily connect to Baidu AI interface to implement speech recognition function.
2. Preparation
Before we start, we need to make some preparations. First, we need to have a Baidu developer account and create a new application to obtain the API Key and Secret Key. This information will be used in subsequent code examples.
Secondly, we need to install the Golang development environment. You can download and install the version suitable for your operating system from the official website (https://golang.org/dl/).
3. Obtain Token
Before using Baidu AI interface, we need to obtain a valid Token first. The token is used for authentication on every request. The following is a sample code for obtaining Token:
package main import ( "fmt" "io/ioutil" "net/http" "net/url" "strings" ) func main() { apiKey := "your_api_key" secretKey := "your_secret_key" tokenURL := "https://aip.baidubce.com/oauth/2.0/token" data := url.Values{} data.Set("grant_type", "client_credentials") data.Set("client_id", apiKey) data.Set("client_secret", secretKey) resp, err := http.Post(tokenURL, "application/x-www-form-urlencoded", strings.NewReader(data.Encode())) if err != nil { fmt.Println("Failed to request token:", err) return } defer resp.Body.Close() body, err := ioutil.ReadAll(resp.Body) if err != nil { fmt.Println("Failed to read response:", err) return } fmt.Println(string(body)) }
In the above code, we first define three variables: apiKey, secretKey and tokenURL. Represents the URL of API Key, Secret Key and Baidu AI to obtain Token respectively.
Then, we use the Post method in the http package to send a POST request to Baidu AI's tokenURL. In the request, we used the Values type in the url package, set the required parameters in the data, and converted the data to the Reader type through strings.NewReader.
Finally, we read the returned Body content through ioutil.ReadAll and print it to the console.
4. Speech Recognition
After obtaining the valid Token, we can start using the speech recognition API. The following is a sample code to implement speech recognition:
package main import ( "fmt" "io/ioutil" "net/http" "strings" ) func main() { token := "your_token" audioURL := "http://some-audio-url.com" asrURL := "https://vop.baidu.com/server_api?dev_pid=1536&cuid=your-cuid" data := url.Values{} data.Set("format", "wav") data.Set("token", token) data.Set("url", audioURL) resp, err := http.Post(asrURL, "application/json", strings.NewReader(data.Encode())) if err != nil { fmt.Println("Failed to request ASR:", err) return } defer resp.Body.Close() body, err := ioutil.ReadAll(resp.Body) if err != nil { fmt.Println("Failed to read response:", err) return } fmt.Println(string(body)) }
In the above code, we first define two variables: token and audioURL. token is the valid Token we obtained using the previous step, and audioURL is the URL of the voice file to be recognized.
Then, we defined asrURL, which is the API interface URL of speech recognition. In this URL, we set the dev_pid and cuid parameters. dev_pid represents the speech recognition model, 1536 represents the Mandarin input method model; cuid represents the user ID, which can be any character.
Next, we sent a POST request to asrURL using the Post method in the http package. In the request, we use the Values type in the url package, set the required parameters in the data, and convert the data to the Reader type through strings.NewReader.
Finally, we read the returned Body content through ioutil.ReadAll and print it to the console.
At this point, we have successfully implemented the function of using Golang programming language to easily connect to Baidu AI interface and realize speech recognition.
Conclusion
This article introduces how to use the Golang programming language to easily connect to Baidu AI interface to achieve speech recognition function. By obtaining Token and using the speech recognition API interface, we can easily integrate Baidu AI's speech recognition capabilities into our applications. I hope this article will be helpful to readers who are learning Golang development.
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