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;
}
}
}