unity使用MicroPhone录音并保存

没有其他设置,直接上代码,我根据实际需求简单修改了一下
这一版是按钮控制开启关闭回放 转载自 https://blog.csdn.net/yiwei151/article/details/77897742,

using System;
using System.IO;
using UnityEngine;
using UnityEngine.UI;

public class MicroPhoneManager : MonoBehaviour
{

    public int DeviceLength;
    /// <summary>
    /// 录音频率
    /// </summary>
    public string Frequency = "44100";
    public int Samplerate = 44100;
    /// <summary>
    /// 最长录音时长（半小时）
    /// </summary>
    int MaxSecond = 1800;
    /// <summary>
    /// 实际录音时长
    /// </summary>
    int realTime = 0;
    /// <summary>
    /// 文件夹路径
    /// </summary>
    string filePath;


    AudioSource _curAudioSource;

    AudioSource CurAudioSource
    {
        get
        {
            if (_curAudioSource == null)
            {
                _curAudioSource = gameObject.AddComponent<AudioSource>();
            }
            return _curAudioSource;
        }
    }

    #region ［public Way］
    public Text text;
    public Button startBtn, endBtn, recordBtn, getSoundData, getDevice;
    void Start()
    {
        startBtn.onClick.AddListener(StartRecordAudio);
        endBtn.onClick.AddListener(StopRecordAudio);
        recordBtn.onClick.AddListener(PlayRecordAudio);
        getSoundData.onClick.AddListener(PrintRecordData);
        getDevice.onClick.AddListener(GetMicrophoneDevice);
    }

    /// <summary>
    /// 获取麦克风设备
    /// </summary>
    public void GetMicrophoneDevice()
    {
        string[] mDevice = Microphone.devices;
        DeviceLength = mDevice.Length;
        if (DeviceLength == 0)
            ShowInfoLog("找不到麦克风设备！");
        else
            Debug.Log("找到麦克风....." + mDevice[0]);
    }

    /// <summary>
    /// 开始录音
    /// </summary>
    public void StartRecordAudio()
    {
        CurAudioSource.Stop();
        CurAudioSource.loop = false;
        CurAudioSource.mute = true;
        CurAudioSource.clip = Microphone.Start(null, true, MaxSecond, int.Parse(Frequency));
        while (!(Microphone.GetPosition(null) > 0))
        {

        }
        CurAudioSource.Play();
        realTime = 0; // 录音计时
        if (IsInvoking("startTime"))
            CancelInvoke("startTime");
        InvokeRepeating("startTime", 1, 1);
        ShowInfoLog("开始录音.....");
    }

    /// <summary>
    /// 停止录音
    /// </summary>
    public void StopRecordAudio()
    {
        ShowInfoLog("结束录音.....");
        if (!Microphone.IsRecording(null))
            return;
        Microphone.End(null);
        CurAudioSource.Stop();
        if (IsInvoking("startTime"))
            CancelInvoke("startTime");
        ShowInfoLog(realTime + "s");

    }
    /// <summary>s
    /// 回放录音
    /// </summary>
    public void PlayRecordAudio()
    {
        if (Microphone.IsRecording(null))
            return;
        if (CurAudioSource.clip == null)
            return;
        CurAudioSource.mute = false;
        CurAudioSource.loop = false;
        CurAudioSource.Play();
        ShowInfoLog("播放录音.....");
    }
    void startTime()
    {
        ++realTime;
        text.text = realTime.ToString();
        ShowInfoLog("realTime:  " + realTime);
        if (realTime >= MaxSecond)
        {
            //若超出最大时间限制，则保存上传文件，接着上传下一次
            //ULog.Log("超出最大时间，重新监听上传");
            StopRecordAudio();
            StartRecordAudio();
        }
    }
    /// <summary>
    ///  打印录音信息
    /// </summary>
    public void PrintRecordData()
    {
        if (Microphone.IsRecording(null))
            return;
        byte[] data = GetClipData();
        #region 用户自由固定录音时长
        int position = CurAudioSource.clip.samples / MaxSecond * realTime;
        var soundata = new float[CurAudioSource.clip.samples * CurAudioSource.clip.channels];
        CurAudioSource.clip.GetData(soundata, 0);

        var newdata = new float[position * CurAudioSource.clip.channels];
        for (int i = 0; i < newdata.Length; i++)
        {
            newdata[i] = soundata[i];
        }
        CurAudioSource.clip = AudioClip.Create(CurAudioSource.clip.name, position, CurAudioSource.clip.channels, CurAudioSource.clip.frequency, false);
        CurAudioSource.clip.SetData(newdata, 0);

        Microphone.End(null);
        #endregion
        using (FileStream fs = CreateEmpty(Application.persistentDataPath + "/dd.wav"))
        {
            ConvertAndWrite(fs, CurAudioSource.clip);
            WriteHeader(fs, CurAudioSource.clip);
        }
    }
    void WriteHeader(FileStream stream, AudioClip clip)
    {
        int hz = clip.frequency;
        int channels = clip.channels;
        int samples = clip.samples;

        stream.Seek(0, SeekOrigin.Begin);

        Byte[] riff = System.Text.Encoding.UTF8.GetBytes("RIFF");
        stream.Write(riff, 0, 4);

        Byte[] chunkSize = BitConverter.GetBytes(stream.Length - 8);
        stream.Write(chunkSize, 0, 4);

        Byte[] wave = System.Text.Encoding.UTF8.GetBytes("WAVE");
        stream.Write(wave, 0, 4);

        Byte[] fmt = System.Text.Encoding.UTF8.GetBytes("fmt ");
        stream.Write(fmt, 0, 4);

        Byte[] subChunk1 = BitConverter.GetBytes(16);
        stream.Write(subChunk1, 0, 4);

        UInt16 two = 2;
        UInt16 one = 1;

        Byte[] audioFormat = BitConverter.GetBytes(one);
        stream.Write(audioFormat, 0, 2);

        Byte[] numChannels = BitConverter.GetBytes(channels);
        stream.Write(numChannels, 0, 2);

        Byte[] sampleRate = BitConverter.GetBytes(hz);
        stream.Write(sampleRate, 0, 4);

        Byte[] byteRate = BitConverter.GetBytes(hz * channels * 2); // sampleRate * bytesPerSample*number of channels, here 44100*2*2  
        stream.Write(byteRate, 0, 4);

        UInt16 blockAlign = (ushort)(channels * 2);
        stream.Write(BitConverter.GetBytes(blockAlign), 0, 2);

        UInt16 bps = 16;
        Byte[] bitsPerSample = BitConverter.GetBytes(bps);
        stream.Write(bitsPerSample, 0, 2);

        Byte[] datastring = System.Text.Encoding.UTF8.GetBytes("data");
        stream.Write(datastring, 0, 4);

        Byte[] subChunk2 = BitConverter.GetBytes(samples * channels * 2);
        stream.Write(subChunk2, 0, 4);

    }
    FileStream CreateEmpty(string filepath)
    {
        ShowInfoLog("录音文件路径为 : " + filepath);
        FileStream fileStream = new FileStream(filepath, FileMode.Create);
        byte emptyByte = new byte();

        for (int i = 0; i < 44; i++) //preparing the header  
        {
            fileStream.WriteByte(emptyByte);
        }

        return fileStream;
    }
    void ConvertAndWrite(FileStream fileStream, AudioClip clip)
    {

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

        clip.GetData(samples, 0);

        Int16[] intData = new Int16[samples.Length];

        Byte[] bytesData = new Byte[samples.Length * 2];

        int rescaleFactor = 32767; //to convert float to Int16  

        for (int i = 0; i < samples.Length; i++)
        {
            intData[i] = (short)(samples[i] * rescaleFactor);
            Byte[] byteArr = new Byte[2];
            byteArr = BitConverter.GetBytes(intData[i]);
            byteArr.CopyTo(bytesData, i * 2);
        }
        fileStream.Write(bytesData, 0, bytesData.Length);
    }
    /// <summary>
    /// 获取音频数据
    /// </summary>
    /// <returns>The clip data.</returns>
    public byte[] GetClipData()
    {
        if (CurAudioSource.clip == null)
        {
            ShowInfoLog("缺少音频资源！");
            return null;
        }

        float[] samples = new float[CurAudioSource.clip.samples];
        CurAudioSource.clip.GetData(samples, 0);

        byte[] outData = new byte[samples.Length * 2];
        int reScaleFactor = 32767;

        for (int i = 0; i < samples.Length; i++)
        {
            short tempShort = (short)(samples[i] * reScaleFactor);
            byte[] tempData = System.BitConverter.GetBytes(tempShort);

            outData[i * 2] = tempData[0];
            outData[i * 2 + 1] = tempData[1];
        }
        if (outData == null || outData.Length <= 0)
        {

            ShowInfoLog("获取音频数据失败！");
            return null;
        }
        return outData;
    }

    #endregion


    //void OnGUI()
    //{

    //    if (DeviceLength == 0)
    //    {
    //        if (ShowGUIButton("获取麦克风设备"))
    //        {
    //            GetMicrophoneDevice();
    //        }
    //    }
    //    else if (DeviceLength > 0)
    //    {
    //        GUILayout.Label("录音频率:");
    //        Frequency = GUILayout.TextField(Frequency, GUILayout.Width(Screen.width / 5), GUILayout.Height(Screen.height / 20));
    //        GUILayout.BeginVertical();

    //        if (ShowGUIButton("开始录音"))
    //        {
    //            StartRecordAudio();
    //        }
    //        if (ShowGUIButton("结束录音"))
    //        {
    //            StopRecordAudio();
    //        }
    //        if (ShowGUIButton("回放录音"))
    //        {
    //            PlayRecordAudio();
    //        }
    //        if (ShowGUIButton("获取录音数据"))
    //        {
    //            PrintRecordData();
    //        }

    //        GUILayout.EndVertical();
    //    }
    //    GUILayout.Label(infoLog);

    //}

    #region [Private Way]

    /// <summary>
    /// 显示GUI 按钮
    /// </summary>
    /// <returns><c>true</c>, if GUI button was shown, <c>false</c> otherwise.</returns>
    /// <param name="buttonName">Button name.</param>
    //bool ShowGUIButton(string buttonName)
    //{
    //    return GUILayout.Button(buttonName, GUILayout.Height(Screen.height / 20), GUILayout.Width(Screen.width / 5));
    //}

    void ShowInfoLog(string info)
    {
        Debug.Log(info);
    }

    #endregion
}

这一版是随时录音,有人说话开始录,过一段时间或者无人说话了开始播放录音,类似汤姆猫那种

using System.Collections.Generic;
using UnityEngine;
public class MicroPhoneManagerClass : MonoBehaviour
{
    AudioSource audioSource;

    /// <summary>
    ///  音频正在播放
    /// </summary>
    public bool audioclipWorking;
    /// <summary>
    ///  录音是否在播放
    /// </summary>
    public bool audioIsPlaying;
    /// <summary>
    /// 是否正在录音
    /// </summary>
    public bool microphoneWorking;
    private List<float> samplesList;

    void Start()
    {
        if (audioSource == null)
        {
            audioSource = gameObject.AddComponent<AudioSource>();
        }
        samplesList = new List<float>();
        startRecord();
    }

    private void startRecord()
    {
        Debug.Log("开始录制-----");
        audioSource.clip = Microphone.Start(null, false, 3, 44100);
        while (Microphone.GetPosition(null) <= 0) ;
        microphoneWorking = true;
    }

    void Update()
    {
        audioIsPlaying = audioSource.isPlaying;
        Screen.sleepTimeout = SleepTimeout.NeverSleep;
        if (microphoneWorking)
        {
            // 没有正在录音
            if (!Microphone.IsRecording(null))
            {
                microphoneWorking = false;
                JudgeRecord();
            }
        }
        if (audioclipWorking)
        {
            // 如果音频没有在播放就继续录音 重复过程
            if (audioSource.isPlaying == false)
            {
                Debug.Log("清理数组");
                samplesList.Clear();
                startRecord();
                audioclipWorking = false;
            }
        }
    }

    /// <summary>
    /// 检查录音 是否有人说话
    /// </summary>
    public void JudgeRecord()
    {
        float max = 0;
        float[] tempSamples; //临时数据存储
        tempSamples = new float[audioSource.clip.samples * audioSource.clip.channels];
        audioSource.clip.GetData(tempSamples, 0);
        foreach (float s in tempSamples)
        {
            float m = Mathf.Abs(s);
            if (max < m)
            {
                max = m; //刚刚录制音频数据的取最大值
            }
            if (max > 0.5)
            {
                samplesList.Add(s);//保存数据
            }
        }
        if (max > 0.5)  // 类似于分贝? 声音超过一定值开始录取
        {
            Debug.Log("有人说话----");
            //判断有人说话
            startRecord();
            //再录下一秒
        }
        else
        {
            //无人说话并且存有录音
            if (audioSource.clip != null && samplesList != null)
            {
                Debug.Log("no body say----");
                Debug.Log("samplesList.Count-------" + samplesList.Count);
                Debug.Log("--------" + tempSamples.Length);
                if (samplesList.Count > 10000) // 录音超过一段长度(说话超过几秒)就播放录音
                {
                    Debug.Log("录音播放----");
                    audioSource.clip = AudioClip.Create("tom", samplesList.Count, 1, 44100, false, false);
                    audioSource.clip.SetData(samplesList.ToArray(), 0);
                    audioSource.loop = false;
                    audioSource.pitch = 1f;
                    audioSource.Play();
                    audioclipWorking = true;
                }
                else
                {
                    startRecord();
                }
            }
            else
            {
                startRecord();
            }
        }
    }

}