How to send a byte array to Azure Speech Service (Speech to Text)

Hello @Arvig, Kris Could you please share the error message when you tried below stream sample in the document to us?

using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.CognitiveServices.Speech;
using Microsoft.CognitiveServices.Speech.Audio;

class Program 
{
    async static Task FromStream(SpeechConfig speechConfig)
    {
        var reader = new BinaryReader(File.OpenRead("PathToFile.wav"));
        using var audioConfigStream = AudioInputStream.CreatePushStream();
        using var audioConfig = AudioConfig.FromStreamInput(audioConfigStream);
        using var speechRecognizer = new SpeechRecognizer(speechConfig, audioConfig);

        byte[] readBytes;
        do
        {
            readBytes = reader.ReadBytes(1024);
            audioConfigStream.Write(readBytes, readBytes.Length);
        } while (readBytes.Length > 0);

        var result = await speechRecognizer.RecognizeOnceAsync();
        Console.WriteLine($"RECOGNIZED: Text={result.Text}");
    }

    async static Task Main(string[] args)
    {
        var speechConfig = SpeechConfig.FromSubscription("YourSpeechKey", "YourSpeechRegion");
        await FromStream(speechConfig);
    }
}

Thanks a lot.

I just re-read your post... Let me try that code and update this

Ok this is the result I got:

RECOGNIZED: Text=

ResultId:7f453e588631461abf50258a71ee33d6 Reason:NoMatch Recognized text:<>. Json:{"Id":"7f453e588631461abf50258a71ee33d6","RecognitionStatus":"InitialSilenceTimeout","Offset":0,"Duration":106200000,"Channel":0}

This is the code I copied from your post, and then I put my variables in there:

 public static string _speechFileDir = @"C:\TestSpeechFiles\";
    public static string _filePath = _speechFileDir + "oh-yeah-everything-is-fine.wav";

    async static Task FromStream(SpeechConfig speechConfig)
    {
        var reader = new BinaryReader(File.OpenRead(_filePath));
        using var audioConfigStream = AudioInputStream.CreatePushStream();
        using var audioConfig = AudioConfig.FromStreamInput(audioConfigStream);
        using var speechRecognizer = new SpeechRecognizer(speechConfig, audioConfig);

        byte[] readBytes;
        do
        {
            readBytes = reader.ReadBytes(1024);
            audioConfigStream.Write(readBytes, readBytes.Length);
        } while (readBytes.Length > 0);

        var result = await speechRecognizer.RecognizeOnceAsync();
        Console.WriteLine($"RECOGNIZED: Text={result.Text}");
        Console.WriteLine(result);
    }

    async static Task Main(string[] args)
    {
        var speechConfig = SpeechConfig.FromSubscription(key, speechRegion);
        await FromStream(speechConfig);
    }

When I run this example, it works:

This is the example that reads it from the File though, not Stream:

public static string _speechFileDir = @"C:\TestSpeechFiles\";
        public static string _filePath = _speechFileDir + "oh-yeah-everything-is-fine.wav";
        public async static Task FromFile(SpeechConfig speechConfig)
        {
            using var audioConfig = AudioConfig.FromWavFileInput(_filePath);
            using var speechRecognizer = new SpeechRecognizer(speechConfig, audioConfig);

            var result = await speechRecognizer.RecognizeOnceAsync();
            Console.WriteLine($"RECOGNIZED: Text={result.Text}");
            Console.WriteLine(result);
        }

This is what it returns:

RECOGNIZED: Text=Ohh yeah, everything's fine.

ResultId:686fe6c098034749ad2633e445f33057 Reason:RecognizedSpeech Recognized text:<Ohh yeah, everything's fine.>. Json:{"Id":"686fe6c098034749ad2633e445f33057","RecognitionStatus":"Success","DisplayText":"Ohh yeah, everything's fine.","Offset":1000000,"Duration":16300000,"Channel":0}

I'm using a Console App with Target Framework of .NET 7