transcribe audio file to text in go

main.go
package main

import (
    "context"
    "fmt"
    "io/ioutil"

    speech "cloud.google.com/go/speech/apiv1"
    "google.golang.org/api/option"
    "google.golang.org/grpc"
    speechpb "google.golang.org/genproto/googleapis/cloud/speech/v1"
)

func main() {
    // Replace the below values with your own credentials and audio file path 
    credentialsFilePath := "/path/to/your/credentials.json"
    audioFilePath := "/path/to/your/audiofile.flac"

    // Read the audio file
    bytes, err := ioutil.ReadFile(audioFilePath)
    if err != nil {
        panic(err)
    }

    // Create a new SpeechClient using your credentials
    ctx := context.Background()
    creds, err := option.CredentialsFromFile(credentialsFilePath)
    if err != nil {
        panic(err)
    }
    client, err := speech.NewClient(ctx, creds, grpc.WithTransportCredentials())
    if err != nil {
        panic(err)
    }

    // Create a new RecognitionConfig
    config := &speechpb.RecognitionConfig{
        Encoding:        speechpb.RecognitionConfig_FLAC,
        SampleRateHertz: 16000,
        LanguageCode:    "en-US",
    }

    // Create a new RecognitionAudio from your audio file bytes
    audio := &speechpb.RecognitionAudio{
        AudioSource: &speechpb.RecognitionAudio_Content{Content: bytes},
    }

    // Call the Speech-to-Text API
    resp, err := client.Recognize(ctx, &speechpb.RecognizeRequest{
        Config: config,
        Audio:  audio,
    })
    if err != nil {
        panic(err)
    }

    // Print the transcribed text
    for _, result := range resp.Results {
        for _, alt := range result.Alternatives {
            fmt.Printf("Transcription: %v\n", alt.Transcript)
        }
    }
}
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