麦克风录制声音

luhailiang · 发表于 2014-6-27 13:32

//使用麦克风可以录制音频流，但是如何将录制的音频流通过代码的形式改成3d音效如果有知道的朋友情不吝赐教

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using UnityEngine;
using System.Collections;
using System.Net;
[RequireComponent (typeof(AudioSource))]

public class MicroPhoneInput : MonoBehaviour {

private static MicroPhoneInput m_instance;

public float sensitivity=100;
public float loudness=0;

private static string[] micArray=null;

const int HEADER_SIZE = 44;

const int RECORD_TIME = 10;

// Use this for initialization
void Start () {
}

public static MicroPhoneInput getInstance()
{
if (m_instance == null)
{
micArray = Microphone.devices;
if (micArray.Length == 0)
{
Debug.LogError ("Microphone.devices is null");
}
foreach (string deviceStr in Microphone.devices)
{
Debug.Log("device name = " + deviceStr);
}
if(micArray.Length==0)
{
Debug.LogError("no mic device");
}

GameObject MicObj=new GameObject("MicObj");
m_instance= MicObj.AddComponent<MicroPhoneInput>();
}
return m_instance;
}

void OnGUI(){
//GUI.Label(new Rect(10,10,200,100),"loudness = "+loudness);
//GUI.Label(new Rect(10,210,200,100),"Microphone.GetPosition = "+Microphone.GetPosition(null));
}

public void StartRecord()
{
audio.Stop();
if (micArray.Length == 0)
{
Debug.Log("No Record Device!");
return;
}
audio.loop = false;
audio.mute = true;
audio.clip = Microphone.Start(null, false, RECORD_TIME, 44100); //22050
while (!(Microphone.GetPosition(null)>0)) {
}
audio.Play ();
Debug.Log("StartRecord");
//倒计时
StartCoroutine(TimeDown());

}

public  void StopRecord()
{
if (micArray.Length == 0)
{
Debug.Log("No Record Device!");
return;
}
if (!Microphone.IsRecording(null))
{
return;
}
Microphone.End (null);
audio.Stop();

Debug.Log("StopRecord");
// PlayRecord();

//调试Int16[] 数据的转化与播放
//PlayClipData(GetClipData());

}

public Byte[] GetClipData()
{
if (audio.clip == null)
{
Debug.Log("GetClipData audio.clip is null");
return null;
}

float[] samples = new float[audio.clip.samples];

audio.clip.GetData(samples, 0);

Byte[] outData = new byte[samples.Length * 2];
//Int16[] intData = new Int16[samples.Length];
//converting in 2 float[] steps to Int16[], //then Int16[] to Byte[]

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.Log("GetClipData intData is null");
return null;
}
//return intData;
return outData;
}

/// <summary>
/// 调用GOOLE语音识别引擎
/// </summary>
/// <returns></returns>
private string GoogleSTT(byte[] voice)
{
string result = string.Empty;
try
{
/**string inFile = "audio.wav";
FileStream fs = new FileStream(inFile, FileMode.Open);
byte[] voice = new byte[fs.Length];
fs.Read(voice, 0, voice.Length);
fs.Close(); */

HttpWebRequest request = null;
string url = "http://www.google.com/speech-api/v1/recognize?xjerr=1&client=chromium&lang=zh-CN";
Uri uri = new Uri(url);
request = (HttpWebRequest)WebRequest.Create(uri);
request.Method = "POST";
request.ContentType = "audio/x-flac; rate=16000";
request.ContentLength = voice.Length;
using (Stream writeStream = request.GetRequestStream())
{
writeStream.Write(voice, 0, voice.Length);
}

using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
using (Stream responseStream = response.GetResponseStream())
{
using (StreamReader readStream = new StreamReader(responseStream, Encoding.UTF8))
{
result = readStream.ReadToEnd();
Debug.Log("result="+result);
}
}
}
}
catch (Exception ex)
{
//Console.WriteLine(ex.StackTrace);
Debug.Log(ex.StackTrace);
}
return result;
}

public void PlayClipData(Int16[] intArr)
{

string aaastr = intArr.ToString();
long  aaalength=aaastr.Length;
Debug.LogError("aaalength=" + aaalength);

string aaastr1 = Convert.ToString (intArr);
aaalength = aaastr1.Length;
Debug.LogError("aaalength=" + aaalength);

if (intArr.Length == 0)
{
Debug.Log("get intarr clipdata is null");
return;
}
//从Int16[]到float[]
float[] samples = new float[intArr.Length];
int rescaleFactor = 32767;
for (int i = 0; i < intArr.Length; i++)
{
samples[i] = (float)intArr[i] / rescaleFactor;
}

//从float[]到Clip
AudioSource audioSource = this.GetComponent<AudioSource>();
if (audioSource.clip == null)
{
audioSource.clip = AudioClip.Create("playRecordClip", intArr.Length, 1, 44100, false, false);
}
audioSource.clip.SetData(samples, 0);
audioSource.mute = false;
audioSource.Play();
}
public void PlayRecord()
{
if (audio.clip == null)
{
Debug.Log("audio.clip=null");
return;
}
audio.mute = false;
audio.loop = false;
audio.Play ();
Debug.Log("PlayRecord");

}

public void LoadAndPlayRecord()
{
string recordPath ="your path";

//SavWav.LoadAndPlay (recordPath);
}

public  float GetAveragedVolume()
{
float[] data=new float[256];
float a=0;
audio.GetOutputData(data,0);
foreach(float s in data)
{
a+=Mathf.Abs(s);
}
return a/256;
}

// Update is called once per frame
void Update ()
{
loudness = GetAveragedVolume () * sensitivity;
if (loudness > 1)
{
Debug.Log("loudness = "+loudness);
}
}

private IEnumerator TimeDown()
{
Debug.Log(" IEnumerator TimeDown()");

int time = 0;
while (time < RECORD_TIME)
{
if (!Microphone.IsRecording (null))
{ //如果没有录制
Debug.Log ("IsRecording false");
yield break;
}
Debug.Log("yield return new WaitForSeconds "+time);
yield return new WaitForSeconds(1);
time++;
}
if (time >= 10)
{
Debug.Log("RECORD_TIME is out! stop record!");
StopRecord();
}
yield return 0;
}
}

ghxx2016 · 发表于 2017-4-7 19:14

很不错

蜉蝣白菜 · 发表于 2017-4-7 18:36

楼主是超人

蜉蝣白菜 · 发表于 2017-4-7 19:01

好帖就是要顶

ghxx2016 · 发表于 2017-4-7 18:39

顶顶多好

引兔那么写 · 发表于 2017-4-7 19:17

LZ真是人才

vv3918 · 发表于 2017-4-15 07:50

真心顶

劲乐团^^邪神.^ · 发表于 2017-4-15 07:42

难得一见的好帖

sillymeng · 发表于 2017-4-15 08:03

说的非常好

UnityPort · 发表于 2017-4-15 08:12

很好哦

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[脚本] 麦克风录制声音