unity3d微软语音识别httppost失败。安全验证问题_invalid mime type "audio/wav; codecs=audio/pcm; sa

using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Net;
using UnityEngine;
 
public class record : MonoBehaviour
{
    AudioClip audioClip;
    AudioSource audioSource;
 
    public int recordTime=5;
     Use this for initialization
    void Start()
    {
        string[] md = Microphone.devices;
        int mdl = md.Length;
        if (mdl == 0)
        {
            Debug.Log("no microphone found");
        }
    }
 
     Update is called once per frame
    //void Update () {
 
    //}
    public void StartRecordAudio()
    {
        audioSource = GameObject.Find("Canvas/Audio Source").GetComponent<AudioSource>();
        Microphone.End(null);
        audioClip = Microphone.Start(null, false, recordTime, 16000);
        Debug.Log("开始录音.....");
        // if(Microphone.GetPosition())
        if (!Microphone.IsRecording(null))
        {
            Debug.Log("没有声音.....");
            return;
        }
        Microphone.GetPosition(null);
 
    }
    public void StopRecordAudio()
    {
        /***文件读取***
        FileInfo fi = new FileInfo("d:\\1.wav");
        FileStream fs = new FileStream("d:\\1.wav", FileMode.Open);
        byte[] buffer = new byte[fs.Length];
        fs.Read(buffer, 0, buffer.Length);
        fs.Close();
        ***/
 
 
        Microphone.End(null);
        // byte[] buffer = ConvertAudioClipToPCM16(audioClip);
       byte[] buffer = GetClipData();
        
        HttpWebRequest request = null;
       //request = (HttpWebRequest)HttpWebRequest.Create("https://speech.platform.bing.com/speech/recognition/interactive/cognitiveservices/v1?language=ZH-CN&format=detailed");
       request = (HttpWebRequest)HttpWebRequest.Create("http://vop.baidu.com/server_api?lan=zh&cuid=B8-81-98-41-3E-E9&token=24.91d00cdafeef1490ec706f7e2f2659e1.2592000.1524029061.282335-10681472");
 
       request.SendChunked = true;
        request.Accept = @"application/json;text/xml";
        request.Method = "POST";
       request.ProtocolVersion = HttpVersion.Version11;
        request.ContentType = @"audio/wav; codec=audio/pcm; samplerate=16000";
       //request.Headers["Ocp-Apim-Subscription-Key"] = "e8cd273d62c347cb9f64d6b94b94435d";
        request.ContentLength = buffer.Length;
 
        // Send an audio file by 1024 byte chunks
 
        /*
        * Open a request stream and write 1024 byte chunks in the stream one at a time.
        */
        using (Stream requestStream = request.GetRequestStream())
        {
 
 
            requestStream.Write(buffer, 0, buffer.Length);
 
        }
        Debug.Log("Response:");
        string responseString;
        WebResponse response = request.GetResponse();
 
        Debug.Log(((HttpWebResponse)response).StatusCode);
 
        StreamReader sr = new StreamReader(response.GetResponseStream());
 
        responseString = sr.ReadToEnd();
 
 
        Debug.Log(responseString);
 
    }
    public static byte[] ConvertAudioClipToPCM16(AudioClip clip)
    {
        var samples = new float[clip.samples * clip.channels];
        clip.GetData(samples, 0);
        var samples_int16 = new short[samples.Length];
 
        for (var index = 0; index < samples.Length; index++)
        {
            var f = samples[index];
            samples_int16[index] = (short)(f * short.MaxValue);
        }
 
        var byteArray = new byte[samples_int16.Length * 2];
        Buffer.BlockCopy(samples_int16, 0, byteArray, 0, byteArray.Length);
 
        return byteArray;
    }
    /// <summary>
    /// 把录音转换为Byte[]
    /// </summary>
    /// <returns></returns>
    public byte[] GetClipData()
    {
        if (audioClip == null)
        {
            //Debug.LogError("录音数据为空");
            Debug.Log("录音数据为空");
            return null;
        }
 
        float[] samples = new float[audioClip.samples];
 
        audioClip.GetData(samples, 0);
 
 
 
        byte[] outData = new byte[samples.Length * 2];
 
        int rescaleFactor = 32767; //to convert float to Int16   
 
        for (int i = 0; i < samples.Length; i++)
        {
            short temshort = (short)(samples[i] * rescaleFactor);
 
            byte[] temdata = System.BitConverter.GetBytes(temshort);
 
            outData[i * 2] = temdata[0];
            outData[i * 2 + 1] = temdata[1];
        }
        if (outData == null || outData.Length <= 0)
        {
            //Debug.LogError("录音数据为空");
            Debug.Log("录音数据为空");
            return null;
        }
 
        //return SubByte(outData, 0, audioLength * 8000 * 2);
        return outData;
    }
    public void PlayRecordAudio()
    {
        Microphone.End(null);
        audioSource.clip = audioClip;
        audioSource.Play();
    }
    public void EndPlayRecordAudio()
    {
        Microphone.End(null);
        audioSource.Stop();
    }
}

1.微软报错百度可以

无论是读取文件的wav格式还是mcrophone录的音全部报错

是安全证书问题，mono这个项目总是这样，我以前写Xamarin安卓项目时候也有这个问题。

只能换www或者UnityWebRequest方式试一试。

已找到解决方法www可以

TlsException: Invalid certificate received from server. Error code: 0xffffffff800b010a
Mono.Security.Protocol.Tls.Handshake.Client.TlsServerCertificate.validateCertificates (Mono.Security.X509.X509CertificateCollection certificates)
Mono.Security.Protocol.Tls.Handshake.Client.TlsServerCertificate.ProcessAsTls1 ()
Mono.Security.Protocol.Tls.Handshake.HandshakeMessage.Process ()
(wrapper remoting-invoke-with-check) Mono.Security.Protocol.Tls.Handshake.HandshakeMessage:Process ()
Mono.Security.Protocol.Tls.ClientRecordProtocol.ProcessHandshakeMessage (Mono.Security.Protocol.Tls.TlsStream handMsg)
Mono.Security.Protocol.Tls.RecordProtocol.InternalReceiveRecordCallback (IAsyncResult asyncResult)
Rethrow as IOException: The authentication or decryption has failed.
Mono.Security.Protocol.Tls.SslStreamBase.AsyncHandshakeCallback (IAsyncResult asyncResult)
Rethrow as WebException: Error getting response stream (Write: The authentication or decryption has failed.): SendFailure
System.Net.HttpWebRequest.EndGetRequestStream (IAsyncResult asyncResult)
System.Net.HttpWebRequest.GetRequestStream ()
record.StopRecordAudio () (at Assets/record.cs:76)
UnityEngine.Events.InvokableCall.Invoke () (at C:/buildslave/unity/build/Runtime/Export/UnityEvent.cs:165)
UnityEngine.Events.UnityEvent.Invoke () (at C:/buildslave/unity/build/Runtime/Export/UnityEvent_0.cs:58)
UnityEngine.UI.Button.Press () (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Button.cs:36)
UnityEngine.UI.Button.OnPointerClick (UnityEngine.EventSystems.PointerEventData eventData) (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Button.cs:45)
UnityEngine.EventSystems.ExecuteEvents.Execute (IPointerClickHandler handler, UnityEngine.EventSystems.BaseEventData eventData) (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/EventSystem/ExecuteEvents.cs:50)
UnityEngine.EventSystems.ExecuteEvents.Execute[IPointerClickHandler] (UnityEngine.GameObject target, UnityEngine.EventSystems.BaseEventData eventData, UnityEngine.EventSystems.EventFunction`1 functor) (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/EventSystem/ExecuteEvents.cs:261)
UnityEngine.EventSystems.EventSystem:Update()

换成百度倒是会成功

2.在网页请求下

微软可以，百度也可以。

但微软可以识别效果更好一点。在高底噪情况下，百度识别不了，微软可以，可以说是不是一个等级的对手，百度的机器学习也许还需要加强。百度的语句识别也是非常不通顺。

有条件还是用微软还有Google，据说科大讯飞也不错，但没用过。

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
 
namespace FunctionTest
{
    public partial class voiceBiying : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            FileInfo fi = new FileInfo("d:\\1.wav");
            FileStream fs = new FileStream("d:\\1.wav", FileMode.Open);
            byte[] buffer = new byte[fs.Length];
            fs.Read(buffer, 0, buffer.Length);
            fs.Close();
            HttpWebRequest request = null;
            request = (HttpWebRequest)HttpWebRequest.Create("https://speech.platform.bing.com/speech/recognition/interactive/cognitiveservices/v1?language=ZH&format=detailed");
            //request = (HttpWebRequest)HttpWebRequest.Create("http://vop.baidu.com/server_api?lan=zh&cuid=B8-81-98-41-3E-E9&token=24.91d00cdafeef1490ec706f7e2f2659e1.2592000.1524029061.282335-10681472");
 
            request.SendChunked = true;
            request.Accept = @"application/json;text/xml";
            request.Method = "POST";
            request.ProtocolVersion = HttpVersion.Version11;
            request.ContentType = @"audio/wav; codec=audio/pcm; samplerate=16000"; 
            //request.ContentType = @"audio/wav; rate=16000";
            request.Headers["Ocp-Apim-Subscription-Key"] = "e8cd273d62c347cb9f64d6b94b94435d";
            request.ContentLength = buffer.Length;
            // Send an audio file by 1024 byte chunks
            /*
            * Open a request stream and write 1024 byte chunks in the stream one at a time.
            */
            using (Stream requestStream = request.GetRequestStream())
            {
                requestStream.Write(buffer, 0, buffer.Length);
            }
            TextBox1.Text="Response:";
            string responseString;
            WebResponse response = request.GetResponse();
            StreamReader sr = new StreamReader(response.GetResponseStream());
            responseString = sr.ReadToEnd();
            TextBox1.Text+=responseString;
        }
    }
}