C#播放short或者byte類型的音頻

更新時(shí)間：2024年12月23日 15:25:04 作者：rbigbearr

這篇文章主要為大家詳細(xì)介紹了如何使用C#實(shí)現(xiàn)播放short或者byte類型的音頻,文中的示例代碼講解詳細(xì),感興趣的小伙伴可以跟隨小編一起學(xué)習(xí)一下

一、通過(guò)Nuget安裝NAudio包

開(kāi)發(fā)工具：vs2019

點(diǎn)擊Visual Studio 2019的工具->NuGet包管理器-》管理解決方案的NuGet的程序包-》瀏覽-》在搜索框中輸入NAudio-》點(diǎn)擊安裝

二、獲取short類型或者byte類型的音頻數(shù)據(jù)

我的數(shù)據(jù)是一組short類型的正弦波信號(hào)，存儲(chǔ)在txt中，如下圖所示：

通過(guò)C#讀取文檔并存儲(chǔ)在short數(shù)組中

string filePath = "20500Left.txt"; // txt文件路徑
short[] audioData = new short[48000 * 2]; //雙聲道數(shù)據(jù) 
int index = 0;
// 讀取txt文檔并按逗號(hào)分割文本
using (StreamReader reader = new StreamReader(filePath))
{
    string line;
    while ((line = reader.ReadLine()) != null)
    {
        string[] parts = line.Split(',');
        foreach (string part in parts)
        {
            //Console.WriteLine(part);
            audioData[index] = Convert.ToInt16(part);
            index++;
        }
    }
              
}

將short變?yōu)閎yte類型的數(shù)據(jù)（如果本身你的音頻數(shù)據(jù)就是byte類型就不需要執(zhí)行下邊操作）

// 將short[]音頻數(shù)據(jù)轉(zhuǎn)換為byte[]數(shù)據(jù)
byte[] byteData = new byte[audioData.Length * 2]; // short類型占2個(gè)字節(jié)
Buffer.BlockCopy(audioData, 0, byteData, 0, byteData.Length);

三、循環(huán)播放自己的音頻數(shù)據(jù)，重寫WaveStream類

主要是重寫了Read這個(gè)函數(shù)，讀到數(shù)據(jù)流末尾，就從開(kāi)頭讀取。

 class LoopingWaveStream : WaveStream
    {
        private WaveStream sourceStream;
 
        public LoopingWaveStream(WaveStream sourceStream)
        {
            this.sourceStream = sourceStream;
        }
 
        public override WaveFormat WaveFormat => sourceStream.WaveFormat;
 
        public override long Length => sourceStream.Length;
 
        public override long Position
        {
            get => sourceStream.Position;
            set => sourceStream.Position = value;
        }
 
        public override int Read(byte[] buffer, int offset, int count)
        {
            int bytesRead = 0;
 
            while (bytesRead < count)
            {
                int read = sourceStream.Read(buffer, offset + bytesRead, count - bytesRead);
                if (read == 0)
                {
                    // 如果讀取到末尾，重新從頭開(kāi)始讀取
                    sourceStream.Position = 0;
                }
                bytesRead += read;
            }
 
            return bytesRead;
        }
    }

將上邊的byte類型的數(shù)據(jù)轉(zhuǎn)換為Stream類型，并填入WaveOut對(duì)象中，進(jìn)行播放

 // 創(chuàng)建內(nèi)存流
            using (MemoryStream stream = new MemoryStream(byteData))
            {
                // 從內(nèi)存流中創(chuàng)建RawSourceWaveStream   //采樣率設(shè)置為48000，位深設(shè)置位16位，通道為雙聲道
                RawSourceWaveStream rawStream = new RawSourceWaveStream(stream, new WaveFormat(48000, 16, 2));
                LoopingWaveStream loopingWaveStream=new LoopingWaveStream(rawStream); 
                // 使用WaveOutEvent播放音頻數(shù)據(jù)
                WaveOut waveOut = new WaveOut();
                waveOut.Init(loopingWaveStream);//想要循環(huán)播放
                //waveOut.Init(rawStream);      //不想要循環(huán)播放
                waveOut.Play();
 
                //下邊兩種方式的循環(huán)播放會(huì)有爆音，不采用。
                //waveOut.PlaybackStopped += (sender, e) =>
                //   {
                //       if (waveOut.PlaybackState == PlaybackState.Stopped)
                //       {
                //           rawStream.Position = 0;
                //           waveOut.Play();
                //       }
                //   };
                //while (waveOut.PlaybackState == PlaybackState.Playing)
                //{
                //    if (rawStream.Position >= rawStream.Length)
                //    {
                //        rawStream.Position = 0;
                //        //Console.WriteLine("Audio stream reached the end.");
                //        //break;
                //    }                    
                //}
 
                Console.WriteLine("Press Enter to stop playback.");
                Console.ReadLine();   //阻塞線程
 
                waveOut.Stop();  //停止播放
                waveOut.Dispose();
            }

四、完整代碼

using NAudio.Wave;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Media;
using System.Text;
using System.Threading.Tasks;
 
namespace 播放short
{
    class LoopingWaveStream : WaveStream
    {
        private WaveStream sourceStream;
 
        public LoopingWaveStream(WaveStream sourceStream)
        {
            this.sourceStream = sourceStream;
        }
 
        public override WaveFormat WaveFormat => sourceStream.WaveFormat;
 
        public override long Length => sourceStream.Length;
 
        public override long Position
        {
            get => sourceStream.Position;
            set => sourceStream.Position = value;
        }
 
        public override int Read(byte[] buffer, int offset, int count)
        {
            int bytesRead = 0;
 
            while (bytesRead < count)
            {
                int read = sourceStream.Read(buffer, offset + bytesRead, count - bytesRead);
                if (read == 0)
                {
                    // 如果讀取到末尾，重新從頭開(kāi)始讀取
                    sourceStream.Position = 0;
                }
                bytesRead += read;
            }
 
            return bytesRead;
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("開(kāi)始");
 
            string filePath = "20500Left.txt"; // txt文件路徑
            short[] audioData = new short[48000 * 2]; //雙聲道數(shù)據(jù) 
            int index = 0;
            // 讀取txt文檔并按逗號(hào)分割文本
            using (StreamReader reader = new StreamReader(filePath))
            {
                string line;
                while ((line = reader.ReadLine()) != null)
                {
                    string[] parts = line.Split(',');
                    foreach (string part in parts)
                    {
                        //Console.WriteLine(part);
                        audioData[index] = Convert.ToInt16(part);
                        index++;
                    }
                }
              
            }
            // 將short[]音頻數(shù)據(jù)轉(zhuǎn)換為byte[]數(shù)據(jù)
            byte[] byteData = new byte[audioData.Length * 2]; // short類型占2個(gè)字節(jié)
            Buffer.BlockCopy(audioData, 0, byteData, 0, byteData.Length);
            //方式1///
            
            // 創(chuàng)建內(nèi)存流
            using (MemoryStream stream = new MemoryStream(byteData))
            {
                // 從內(nèi)存流中創(chuàng)建RawSourceWaveStream   //采樣率設(shè)置為48000，位深設(shè)置位16位，通道為雙聲道
                RawSourceWaveStream rawStream = new RawSourceWaveStream(stream, new WaveFormat(48000, 16, 2));
                LoopingWaveStream loopingWaveStream=new LoopingWaveStream(rawStream); 
                // 使用WaveOutEvent播放音頻數(shù)據(jù)
                WaveOut waveOut = new WaveOut();
                waveOut.Init(loopingWaveStream);//想要循環(huán)播放
                //waveOut.Init(rawStream);      //不想要循環(huán)播放
                waveOut.Play();
 
                //下邊兩種方式的循環(huán)播放會(huì)有爆音，不采用。
                //waveOut.PlaybackStopped += (sender, e) =>
                //   {
                //       if (waveOut.PlaybackState == PlaybackState.Stopped)
                //       {
                //           rawStream.Position = 0;
                //           waveOut.Play();
                //       }
                //   };
                //while (waveOut.PlaybackState == PlaybackState.Playing)
                //{
                //    if (rawStream.Position >= rawStream.Length)
                //    {
                //        rawStream.Position = 0;
                //        //Console.WriteLine("Audio stream reached the end.");
                //        //break;
                //    }                    
                //}
 
                Console.WriteLine("Press Enter to stop playback.");
                Console.ReadLine();   //阻塞線程
 
                waveOut.Stop();  //停止播放
                waveOut.Dispose();
            }
 
 
        }
    }
}

以上就是C#播放short或者byte類型的音頻的詳細(xì)內(nèi)容，更多關(guān)于C#播放音頻的資料請(qǐng)關(guān)注腳本之家其它相關(guān)文章！

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