使用C#播放PC扬声器的音高可以通过以下步骤实现:
using System;
using System.Media;
SoundPlayer
对象,并指定要播放的音频文件路径:string audioFilePath = "音频文件路径";
SoundPlayer player = new SoundPlayer(audioFilePath);
SoundPlayer
对象的LoadCompleted
事件和Stream
对象的Position
属性。首先,创建一个MemoryStream
对象,并将音频文件加载到其中:MemoryStream stream = new MemoryStream();
player.LoadCompleted += (sender, e) =>
{
player.Stream.CopyTo(stream);
};
player.Load();
NAudio.Wave.WaveFileReader
对象,用于读取音频文件的数据:NAudio.Wave.WaveFileReader reader = new NAudio.Wave.WaveFileReader(stream);
NAudio.Wave.WaveFormatConversionStream
对象,用于调整音高:float pitch = 1.5f; // 调整音高的倍数,1.0为原始音高
NAudio.Wave.WaveFormatConversionStream pitchStream = new NAudio.Wave.WaveFormatConversionStream(new NAudio.Wave.WaveFormat(reader.WaveFormat.SampleRate * pitch, reader.WaveFormat.BitsPerSample, reader.WaveFormat.Channels), reader);
NAudio.Wave.DirectSoundOut
对象,用于播放音频:NAudio.Wave.DirectSoundOut output = new NAudio.Wave.DirectSoundOut();
output.Init(pitchStream);
output.Play();
完整的示例代码如下:
using System;
using System.Media;
using NAudio.Wave;
namespace AudioPlayer
{
class Program
{
static void Main(string[] args)
{
string audioFilePath = "音频文件路径";
SoundPlayer player = new SoundPlayer(audioFilePath);
MemoryStream stream = new MemoryStream();
player.LoadCompleted += (sender, e) =>
{
player.Stream.CopyTo(stream);
};
player.Load();
WaveFileReader reader = new WaveFileReader(stream);
float pitch = 1.5f; // 调整音高的倍数,1.0为原始音高
WaveFormatConversionStream pitchStream = new WaveFormatConversionStream(new WaveFormat(reader.WaveFormat.SampleRate * pitch, reader.WaveFormat.BitsPerSample, reader.WaveFormat.Channels), reader);
DirectSoundOut output = new DirectSoundOut();
output.Init(pitchStream);
output.Play();
Console.WriteLine("按任意键停止播放...");
Console.ReadKey();
output.Stop();
output.Dispose();
pitchStream.Dispose();
reader.Dispose();
stream.Dispose();
}
}
}
请注意,上述示例代码中使用了NAudio库来实现音高调整和音频播放功能。你可以通过在项目中添加NAudio的引用来使用该库。NAudio是一个流行的用于音频处理的C#库,提供了丰富的功能和API。
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