func send(client *speech.Client, filename string) (string, error) {
ctx := context.Background()
data, err := ioutil.ReadFile(filename)
if err != nil {
return "", err
}
// Send the contents of the audio file with the encoding and
// and sample rate information to be transcripted.
req := &speechpb.AsyncRecognizeRequest{
Config: &speechpb.RecognitionConfig{
Encoding: speechpb.RecognitionConfig_LINEAR16,
SampleRate: 16000,
},
Audio: &speechpb.RecognitionAudio{
AudioSource: &speechpb.RecognitionAudio_Content{Content: data},
},
}
op, err := client.AsyncRecognize(ctx, req)
if err != nil {
return "", err
}
return op.Name(), nil
}
