Azure 语音转文本听录不会连续运行

Question

我最初运行了一个Azure语音到文本模型，该模型从文件中转录了长达15秒的语音。现在我正试图把它变成一个能转录更长话语的模型，但这个模型仍然能在15秒的语音中截取。代码为：

using System;
using System.Threading.Tasks;
using Microsoft.CognitiveServices.Speech;
using Microsoft.CognitiveServices.Speech.Audio;
namespace NEST {
class Program {
static async Task Main(string[] args) {
await StartContinuousRecognitionAsync();
}
static async Task StartContinuousRecognitionAsync() {
// Configure the subscription information for the service to access.
// Use either key1 or key2 from the Speech Service resource you have created
var config = SpeechConfig.FromSubscription("subscriptionkey", "region");
// Setup the audio configuration, in this case, using a file that is in local storage.
using(var audioInput = AudioConfig.FromWavFileInput("C:/Users/MichaelSchwartz/source/repos/AI-102-Process-Speech-master/transcribe_speech_to_text/media/spkr1.wav"))
// Pass the required parameters to the Speech Service which includes the configuration information
// and the audio file name that you will use as input
using(var recognizer = new SpeechRecognizer(config, audioInput)) {
Console.WriteLine("Recognizing first result...");
var result = await recognizer.StartContinuousRecognitionAsync();
switch (result.Reason) {
case ResultReason.RecognizedSpeech:
// The file contained speech that was recognized and the transcription will be output
// to the terminal window
Console.WriteLine($"We recognized: {result.Text}");
break;
case ResultReason.NoMatch:
// No recognizable speech found in the audio file that was supplied.
// Out an informative message
Console.WriteLine($"NOMATCH: Speech could not be recognized.");
break;
case ResultReason.Canceled:
// Operation was cancelled
// Output the reason
var cancellation = CancellationDetails.FromResult(result);
Console.WriteLine($"CANCELED: Reason={cancellation.Reason}");
if (cancellation.Reason == CancellationReason.Error) {
Console.WriteLine($"CANCELED: ErrorCode={cancellation.ErrorCode}");
Console.WriteLine($"CANCELED: ErrorDetails={cancellation.ErrorDetails}");
Console.WriteLine($"CANCELED: Did you update the subscription info?");
}
break;
}
}
}
}
}

返回的错误为：

无法将void分配给隐式类型变量[NEST]csharp(CS0815(。

如何解决此问题并转录超过15秒的话语？提前谢谢。

Answer 1

不确定您使用的是哪个版本的SDK，但官方文档使用的是Delegate而不是result。代码中的原因。

using var audioConfig = AudioConfig.FromWavFileInput("YourAudioFile.wav");
using var recognizer = new SpeechRecognizer(speechConfig, audioConfig);
var stopRecognition = new TaskCompletionSource<int>();
recognizer.Recognizing += (s, e) =>
{
Console.WriteLine($"RECOGNIZING: Text={e.Result.Text}");
};
recognizer.Recognized += (s, e) =>
{
if (e.Result.Reason == ResultReason.RecognizedSpeech)
{
Console.WriteLine($"RECOGNIZED: Text={e.Result.Text}");
}
else if (e.Result.Reason == ResultReason.NoMatch)
{
Console.WriteLine($"NOMATCH: Speech could not be recognized.");
}
};
recognizer.Canceled += (s, e) =>
{
Console.WriteLine($"CANCELED: Reason={e.Reason}");
if (e.Reason == CancellationReason.Error)
{
Console.WriteLine($"CANCELED: ErrorCode={e.ErrorCode}");
Console.WriteLine($"CANCELED: ErrorDetails={e.ErrorDetails}");
Console.WriteLine($"CANCELED: Did you update the subscription info?");
}
stopRecognition.TrySetResult(0);
};
recognizer.SessionStopped += (s, e) =>
{
Console.WriteLine("n    Session stopped event.");
stopRecognition.TrySetResult(0);
};
await recognizer.StartContinuousRecognitionAsync();
// Waits for completion. Use Task.WaitAny to keep the task rooted.
Task.WaitAny(new[] { stopRecognition.Task });

https://learn.microsoft.com/en-us/azure/cognitive-services/speech-service/get-started-speech-to-text?tabs=windowsinstall&pivots=编程语言csharp