似乎需要超能力才能看到，所以复制粘贴一份过来。

1 using System;  2 using System.IO;  3 using UnityEngine;  4 using System.Collections.Generic;  5 using System.Threading;  6   7 public class SavWav {  8   9     const int HEADER_SIZE = 44; 10     struct ClipData{ 11  12         public  int samples; 13         public  int channels; 14         public float[] samplesData; 15  16     } 17  18     public bool Save(string filename, AudioClip clip) { 19         if (!filename.ToLower().EndsWith(".wav")) { 20             filename += ".wav"; 21         } 22  23         var filepath = filename; 24  25         Debug.Log(filepath); 26  27         // Make sure directory exists if user is saving to sub dir. 28         Directory.CreateDirectory(Path.GetDirectoryName(filepath)); 29         ClipData clipdata = new ClipData (); 30         clipdata.samples = clip.samples; 31         clipdata.channels = clip.channels; 32         float[] dataFloat = new float[clip.samples*clip.channels]; 33         clip.GetData (dataFloat, 0); 34         clipdata.samplesData = dataFloat; 35         using (var fileStream = CreateEmpty(filepath)) { 36             MemoryStream memstrm = new MemoryStream (); 37             ConvertAndWrite(memstrm, clipdata); 38             memstrm.WriteTo (fileStream); 39             WriteHeader(fileStream, clip); 40         } 41  42         return true; // TODO: return false if there's a failure saving the file 43     } 44  45     public AudioClip TrimSilence(AudioClip clip, float min) { 46         var samples = new float[clip.samples]; 47  48         clip.GetData(samples, 0); 49  50         return TrimSilence(new List
     
      (samples), min, clip.channels, clip.frequency); 51     } 52  53     public AudioClip TrimSilence(List
      
        samples, float min, int channels, int hz) { 54         return TrimSilence(samples, min, channels, hz, false, false); 55     } 56  57     public AudioClip TrimSilence(List
       
         samples, float min, int channels, int hz, bool _3D, bool stream) { 58         int i; 59  60         for (i=0; i
        
          min) { 62                 break; 63             } 64         } 65  66         samples.RemoveRange(0, i); 67  68         for (i=samples.Count - 1; i>0; i--) { 69             if (Mathf.Abs(samples[i]) > min) { 70                 break; 71             } 72         } 73  74         samples.RemoveRange(i, samples.Count - i); 75  76         var clip = AudioClip.Create("TempClip", samples.Count, channels, hz, _3D, stream); 77  78         clip.SetData(samples.ToArray(), 0); 79  80         return clip; 81     } 82  83      FileStream CreateEmpty(string filepath) { 84         var fileStream = new FileStream(filepath, FileMode.Create); 85         byte emptyByte = new byte(); 86  87         for(int i = 0; i < HEADER_SIZE; i++) //preparing the header 88         { 89             fileStream.WriteByte(emptyByte); 90         } 91  92         return fileStream; 93     } 94  95     void ConvertAndWrite(MemoryStream memStream, ClipData clipData) 96     { 97         float[] samples = new float[clipData.samples*clipData.channels]; 98  99         samples = clipData.samplesData;100 101         Int16[] intData = new Int16[samples.Length];102 103         Byte[] bytesData = new Byte[samples.Length * 2];104 105         const float rescaleFactor = 32767; //to convert float to Int16106 107         for (int i = 0; i < samples.Length; i++)108         {109             intData[i] = (short)(samples[i] * rescaleFactor);110             //Debug.Log (samples [i]);111         }112         Buffer.BlockCopy(intData, 0, bytesData, 0, bytesData.Length);113         memStream.Write(bytesData, 0, bytesData.Length);114     }115 116      void WriteHeader(FileStream fileStream, AudioClip clip) {117 118         var hz = clip.frequency;119         var channels = clip.channels;120         var samples = clip.samples;121 122         fileStream.Seek(0, SeekOrigin.Begin);123 124         Byte[] riff = System.Text.Encoding.UTF8.GetBytes("RIFF");125         fileStream.Write(riff, 0, 4);126 127         Byte[] chunkSize = BitConverter.GetBytes(fileStream.Length - 8);128         fileStream.Write(chunkSize, 0, 4);129 130         Byte[] wave = System.Text.Encoding.UTF8.GetBytes("WAVE");131         fileStream.Write(wave, 0, 4);132 133         Byte[] fmt = System.Text.Encoding.UTF8.GetBytes("fmt ");134         fileStream.Write(fmt, 0, 4);135 136         Byte[] subChunk1 = BitConverter.GetBytes(16);137         fileStream.Write(subChunk1, 0, 4);138 139         UInt16 two = 2;140         UInt16 one = 1;141 142         Byte[] audioFormat = BitConverter.GetBytes(one);143         fileStream.Write(audioFormat, 0, 2);144 145         Byte[] numChannels = BitConverter.GetBytes(channels);146         fileStream.Write(numChannels, 0, 2);147 148         Byte[] sampleRate = BitConverter.GetBytes(hz);149         fileStream.Write(sampleRate, 0, 4);150 151         Byte[] byteRate = BitConverter.GetBytes(hz * channels * 2); // sampleRate * bytesPerSample*number of channels, here 44100*2*2152         fileStream.Write(byteRate, 0, 4);153 154         UInt16 blockAlign = (ushort) (channels * 2);155         fileStream.Write(BitConverter.GetBytes(blockAlign), 0, 2);156 157         UInt16 bps = 16;158         Byte[] bitsPerSample = BitConverter.GetBytes(bps);159         fileStream.Write(bitsPerSample, 0, 2);160 161         Byte[] datastring = System.Text.Encoding.UTF8.GetBytes("data");162         fileStream.Write(datastring, 0, 4);163 164         Byte[] subChunk2 = BitConverter.GetBytes(samples * channels * 2);165         fileStream.Write(subChunk2, 0, 4);166 167 //        fileStream.Close();168     }169 }