43 lines
1.5 KiB
C#
43 lines
1.5 KiB
C#
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using Microsoft.CognitiveServices.Speech;
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using Microsoft.CognitiveServices.Speech.Audio;
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namespace AzureAi.Transcriber.Services;
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public interface ITranscribeService
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{
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Task<SpeechRecognitionResult> Transcribe(string filePath);
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}
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public class TranscribeService: ITranscribeService
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{
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private static string _speechKey = Environment.GetEnvironmentVariable("SPEECH_KEY") ?? string.Empty;
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private static string _speechRegion = Environment.GetEnvironmentVariable("SPEECH_REGION") ?? string.Empty;
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private ILogger<TranscribeService> Logger;
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public TranscribeService(ILogger<TranscribeService> logger)
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{
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Logger = logger;
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if(string.IsNullOrWhiteSpace(_speechKey) || string.IsNullOrWhiteSpace(_speechRegion))
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{
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throw new InvalidOperationException("Speech key and region must be set in environment variables.");
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}
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}
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public async Task<SpeechRecognitionResult> Transcribe(string filePath)
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{
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Logger.LogInformation("Transcribing {filePath}", filePath);
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await Task.Delay(3000);
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var speechConfig = SpeechConfig.FromSubscription(_speechKey, _speechRegion);
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speechConfig.SpeechRecognitionLanguage = "en-US";
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using var audioConfig = AudioConfig.FromWavFileInput(filePath);
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using var recognizer = new SpeechRecognizer(speechConfig, audioConfig);
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var result = await recognizer.RecognizeOnceAsync();
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return result;
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}
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}
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